(commons-compress) branch master updated: Use JUnit 5 convention for class visibility

[ggregory]

This is an automated email from the ASF dual-hosted git repository.

ggregory pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-compress.git


The following commit(s) were added to refs/heads/master by this push:
     new 3a645c7e1 Use JUnit 5 convention for class visibility
3a645c7e1 is described below

commit 3a645c7e15a344961b5e422397a5e2a088fc0b70
Author: Gary D. Gregory <garydgreg...@gmail.com>
AuthorDate: Sun Jun 8 14:09:33 2025 -0400

    Use JUnit 5 convention for class visibility
---
 src/test/java/org/apache/commons/compress/ArchiveReadTest.java |  2 +-
 .../java/org/apache/commons/compress/ArchiveUtilsTest.java     |  2 +-
 src/test/java/org/apache/commons/compress/ChainingTest.java    |  2 +-
 src/test/java/org/apache/commons/compress/IOMethodsTest.java   |  2 +-
 .../org/apache/commons/compress/MemoryLimitExceptionTest.java  |  2 +-
 .../commons/compress/archivers/ArchiveServiceLoaderTest.java   |  2 +-
 .../commons/compress/archivers/ArchiveStreamFactoryTest.java   |  2 +-
 .../commons/compress/archivers/ExceptionMessageTest.java       |  2 +-
 .../java/org/apache/commons/compress/archivers/ListerTest.java |  2 +-
 .../org/apache/commons/compress/archivers/LongPathTest.java    |  2 +-
 .../org/apache/commons/compress/archivers/LongSymLinkTest.java |  2 +-
 .../java/org/apache/commons/compress/archivers/SevenZTest.java |  4 ++--
 .../compress/archivers/ar/ArArchiveInputStreamTest.java        |  2 +-
 .../compress/archivers/ar/ArArchiveOutputStreamTest.java       |  2 +-
 .../apache/commons/compress/archivers/ar/Compress678Test.java  |  2 +-
 .../compress/archivers/arj/ArjArchiveInputStreamTest.java      |  2 +-
 .../apache/commons/compress/archivers/arj/CoverageTest.java    |  2 +-
 .../commons/compress/archivers/cpio/CpioArchiveEntryTest.java  |  2 +-
 .../compress/archivers/cpio/CpioArchiveInputStreamTest.java    |  2 +-
 .../compress/archivers/cpio/CpioArchiveOutputStreamTest.java   |  2 +-
 .../commons/compress/archivers/cpio/CpioArchiveTest.java       |  2 +-
 .../apache/commons/compress/archivers/cpio/CpioUtilTest.java   |  2 +-
 .../commons/compress/archivers/dump/DumpArchiveEntryTest.java  |  2 +-
 .../compress/archivers/dump/DumpArchiveInputStreamTest.java    |  2 +-
 .../commons/compress/archivers/dump/DumpArchiveUtilTest.java   |  2 +-
 .../commons/compress/archivers/dump/TapeInputStreamTest.java   |  2 +-
 .../commons/compress/archivers/examples/ExpanderTest.java      |  2 +-
 .../compress/archivers/examples/ParameterizedArchiverTest.java |  2 +-
 .../compress/archivers/examples/ParameterizedExpanderTest.java |  2 +-
 .../compress/archivers/examples/SevenZArchiverTest.java        |  2 +-
 .../apache/commons/compress/archivers/jar/ExpandApkTest.java   |  2 +-
 .../compress/archivers/jar/JarArchiveOutputStreamTest.java     |  2 +-
 .../apache/commons/compress/archivers/jar/JarMarkerTest.java   |  2 +-
 .../compress/archivers/sevenz/AES256SHA256DecoderTest.java     |  2 +-
 .../commons/compress/archivers/sevenz/Compress679Test.java     |  2 +-
 .../apache/commons/compress/archivers/sevenz/CoverageTest.java |  2 +-
 .../apache/commons/compress/archivers/sevenz/FolderTest.java   |  2 +-
 .../compress/archivers/sevenz/SevenZArchiveEntryTest.java      |  2 +-
 .../commons/compress/archivers/sevenz/SevenZFileTest.java      |  2 +-
 .../archivers/sevenz/SevenZMethodConfigurationTest.java        |  2 +-
 .../compress/archivers/sevenz/SevenZNativeHeapTest.java        |  2 +-
 .../compress/archivers/sevenz/SevenZOutputFileTest.java        |  2 +-
 .../apache/commons/compress/archivers/tar/Compress699Test.java |  2 +-
 .../apache/commons/compress/archivers/tar/Compress700Test.java |  2 +-
 .../apache/commons/compress/archivers/tar/SparseFilesTest.java |  2 +-
 .../commons/compress/archivers/tar/TarArchiveEntryTest.java    |  2 +-
 .../compress/archivers/tar/TarArchiveInputStreamTest.java      |  2 +-
 .../compress/archivers/tar/TarArchiveOutputStreamTest.java     |  2 +-
 .../org/apache/commons/compress/archivers/tar/TarFileTest.java |  2 +-
 .../compress/archivers/tar/TarMemoryFileSystemTest.java        |  2 +-
 .../apache/commons/compress/archivers/tar/TarUtilsTest.java    |  2 +-
 .../commons/compress/archivers/zip/AsiExtraFieldTest.java      |  2 +-
 .../apache/commons/compress/archivers/zip/BinaryTreeTest.java  |  2 +-
 .../apache/commons/compress/archivers/zip/BitStreamTest.java   |  2 +-
 .../commons/compress/archivers/zip/CircularBufferTest.java     |  2 +-
 .../Crash_f2efd9eaeb86cda597d07b5e3c3d81363633c2da_Test.java   |  2 +-
 .../commons/compress/archivers/zip/DataDescriptorTest.java     |  2 +-
 .../commons/compress/archivers/zip/EncryptedArchiveTest.java   |  2 +-
 .../commons/compress/archivers/zip/ExplodeSupportTest.java     |  2 +-
 .../commons/compress/archivers/zip/ExtraFieldUtilsTest.java    |  2 +-
 .../archivers/zip/FileRandomAccessOutputStreamTest.java        |  2 +-
 .../commons/compress/archivers/zip/GeneralPurposeBitTest.java  |  2 +-
 .../compress/archivers/zip/Maven221MultiVolumeTest.java        |  2 +-
 .../commons/compress/archivers/zip/NioZipEncodingTest.java     |  2 +-
 .../compress/archivers/zip/ParallelScatterZipCreatorTest.java  |  2 +-
 .../commons/compress/archivers/zip/PkWareExtraHeaderTest.java  |  2 +-
 .../compress/archivers/zip/RandomAccessOutputStreamTest.java   |  2 +-
 .../commons/compress/archivers/zip/ScatterSampleTest.java      |  2 +-
 .../compress/archivers/zip/ScatterZipOutputStreamTest.java     |  2 +-
 .../zip/SeekableChannelRandomAccessOutputStreamTest.java       |  2 +-
 .../commons/compress/archivers/zip/StreamCompressorTest.java   |  2 +-
 .../commons/compress/archivers/zip/UTF8ZipFilesTest.java       |  2 +-
 .../apache/commons/compress/archivers/zip/X000A_NTFSTest.java  |  2 +-
 .../compress/archivers/zip/X5455_ExtendedTimestampTest.java    |  2 +-
 .../commons/compress/archivers/zip/X7875_NewUnixTest.java      |  2 +-
 .../archivers/zip/Zip64ExtendedInformationExtraFieldTest.java  |  2 +-
 .../commons/compress/archivers/zip/ZipArchiveEntryTest.java    |  2 +-
 .../compress/archivers/zip/ZipArchiveInputStreamTest.java      |  2 +-
 .../compress/archivers/zip/ZipArchiveOutputStreamTest.java     |  2 +-
 .../commons/compress/archivers/zip/ZipClassCoverageTest.java   |  2 +-
 .../compress/archivers/zip/ZipCompressMethodXzTest.java        |  2 +-
 .../compress/archivers/zip/ZipCompressMethodZstdTest.java      |  2 +-
 .../compress/archivers/zip/ZipEightByteIntegerTest.java        |  2 +-
 .../commons/compress/archivers/zip/ZipEncodingHelperTest.java  |  2 +-
 .../apache/commons/compress/archivers/zip/ZipEncodingTest.java |  2 +-
 .../archivers/zip/ZipFileIgnoringLocalFileHeaderTest.java      |  2 +-
 .../org/apache/commons/compress/archivers/zip/ZipFileTest.java |  2 +-
 .../apache/commons/compress/archivers/zip/ZipIoUtilTest.java   |  2 +-
 .../org/apache/commons/compress/archivers/zip/ZipLongTest.java |  2 +-
 .../compress/archivers/zip/ZipMemoryFileSystemTest.java        |  2 +-
 .../apache/commons/compress/archivers/zip/ZipShortTest.java    |  2 +-
 .../compress/archivers/zip/ZipSplitOutputStreamTest.java       |  2 +-
 .../org/apache/commons/compress/archivers/zip/ZipUtilTest.java |  2 +-
 .../java/org/apache/commons/compress/changes/ChangeTest.java   |  2 +-
 .../apache/commons/compress/compressors/BZip2UtilsTest.java    |  2 +-
 .../compress/compressors/CompressorServiceLoaderTest.java      |  2 +-
 .../compressors/CompressorStreamFactoryRoundtripTest.java      |  2 +-
 .../org/apache/commons/compress/compressors/GzipUtilsTest.java |  2 +-
 .../compressors/brotli/BrotliCompressorInputStreamTest.java    |  2 +-
 .../compress/compressors/bzip2/BZip2Compress651Test.java       |  2 +-
 .../compressors/bzip2/BZip2CompressorInputStreamTest.java      |  2 +-
 .../compressors/bzip2/BZip2NSelectorsOverflowTest.java         |  2 +-
 .../commons/compress/compressors/bzip2/BlockSortTest.java      |  2 +-
 .../commons/compress/compressors/bzip2/Compress686Test.java    |  2 +-
 .../compress/compressors/bzip2/PythonTruncatedBzip2Test.java   |  2 +-
 .../compressors/deflate/DeflateCompressorInputStreamTest.java  |  2 +-
 .../compressors/deflate/DeflateCompressorOutputStreamTest.java |  2 +-
 .../compress/compressors/deflate/DeflateParametersTest.java    |  2 +-
 .../compress/compressors/deflate64/Deflate64BugsTest.java      |  2 +-
 .../deflate64/Deflate64CompressorInputStreamTest.java          |  2 +-
 .../compress/compressors/deflate64/HuffmanDecoderTest.java     |  2 +-
 .../commons/compress/compressors/gzip/ExtraFieldTest.java      |  2 +-
 .../compressors/gzip/GzipCompressorInputStreamTest.java        |  2 +-
 .../compressors/gzip/GzipCompressorOutputStreamTest.java       |  2 +-
 .../commons/compress/compressors/gzip/GzipParametersTest.java  |  2 +-
 .../apache/commons/compress/compressors/gzip/SubFieldTest.java |  2 +-
 .../compressors/lz4/BlockLZ4CompressorInputStreamTest.java     |  2 +-
 .../compressors/lz4/BlockLZ4CompressorOutputStreamTest.java    |  2 +-
 .../compress/compressors/lz4/CompressionDegradationTest.java   |  2 +-
 .../apache/commons/compress/compressors/lz4/FactoryTest.java   |  2 +-
 .../compressors/lz4/FramedLZ4CompressorOutputStreamTest.java   |  2 +-
 .../apache/commons/compress/compressors/lz4/XXHash32Test.java  |  2 +-
 .../lz77support/AbstractLZ77CompressorInputStreamTest.java     |  2 +-
 .../compressors/lz77support/LZ77CompressorBlockTest.java       |  2 +-
 .../compress/compressors/lz77support/LZ77CompressorTest.java   |  2 +-
 .../compress/compressors/lz77support/ParametersTest.java       |  2 +-
 .../compressors/lzma/LZMACompressorOutputStreamTest.java       |  2 +-
 .../commons/compress/compressors/lzma/LZMAUtilsTest.java       |  2 +-
 .../commons/compress/compressors/pack200/Compress687Test.java  |  2 +-
 .../compress/compressors/xz/XZCompressorInputStreamTest.java   |  2 +-
 .../compress/compressors/xz/XZCompressorOutputStreamTest.java  |  2 +-
 .../compress/compressors/xz/XZCompressorRoundtripTest.java     |  2 +-
 .../apache/commons/compress/compressors/xz/XZUtilsTest.java    |  2 +-
 .../compress/compressors/z/ZCompressorInputStreamTest.java     |  2 +-
 .../compressors/zstandard/ZstdCompressorInputStreamTest.java   |  2 +-
 .../compress/compressors/zstandard/ZstdRoundtripTest.java      |  2 +-
 .../commons/compress/compressors/zstandard/ZstdUtilsTest.java  |  2 +-
 .../apache/commons/compress/harmony/pack200/ArchiveTest.java   |  2 +-
 .../apache/commons/compress/harmony/pack200/BHSDCodecTest.java |  2 +-
 .../commons/compress/harmony/pack200/CodecEncodingTest.java    |  2 +-
 .../org/apache/commons/compress/harmony/pack200/CodecTest.java |  2 +-
 .../commons/compress/harmony/pack200/Compress626Test.java      |  2 +-
 .../commons/compress/harmony/pack200/Compress628Test.java      |  2 +-
 .../compress/harmony/pack200/NewAttributeBandsTest.java        |  2 +-
 .../commons/compress/harmony/pack200/PackingOptionsTest.java   |  2 +-
 .../commons/compress/harmony/pack200/PopulationCodecTest.java  |  2 +-
 .../apache/commons/compress/harmony/pack200/RunCodecTest.java  |  2 +-
 .../apache/commons/compress/harmony/unpack200/ArchiveTest.java |  2 +-
 .../compress/harmony/unpack200/AttributeLayoutMapTest.java     |  2 +-
 .../compress/harmony/unpack200/AttributeLayoutTest.java        |  2 +-
 .../apache/commons/compress/harmony/unpack200/BandSetTest.java |  2 +-
 .../apache/commons/compress/harmony/unpack200/BcBandsTest.java |  6 +++---
 .../apache/commons/compress/harmony/unpack200/CPUTF8Test.java  |  2 +-
 .../commons/compress/harmony/unpack200/ClassBandsTest.java     |  4 ++--
 .../commons/compress/harmony/unpack200/CodeAttributeTest.java  | 10 +++++-----
 .../unpack200/Codec_decodeInts_OutOfMemoryErrorTest.java       |  2 +-
 .../apache/commons/compress/harmony/unpack200/ICTupleTest.java |  2 +-
 .../compress/harmony/unpack200/NewAttributeBandsTest.java      |  2 +-
 .../harmony/unpack200/SegmentConstantPoolArrayCacheTest.java   |  2 +-
 .../compress/harmony/unpack200/SegmentConstantPoolTest.java    |  4 ++--
 .../commons/compress/harmony/unpack200/SegmentOptionsTest.java |  2 +-
 .../apache/commons/compress/harmony/unpack200/SegmentTest.java |  2 +-
 .../commons/compress/harmony/unpack200/SegmentUtilsTest.java   |  2 +-
 .../compress/harmony/unpack200/bytecode/ByteCodeTest.java      |  2 +-
 .../harmony/unpack200/bytecode/ClassFileEntryTest.java         |  2 +-
 .../compress/harmony/unpack200/bytecode/ConstantPoolTest.java  |  2 +-
 .../org/apache/commons/compress/java/util/jar/Pack200Test.java |  2 +-
 src/test/java/org/apache/commons/compress/osgi/OsgiITest.java  |  2 +-
 .../commons/compress/osgi/OsgiWithoutOptionalDepsITest.java    |  2 +-
 .../org/apache/commons/compress/utils/BitInputStreamTest.java  |  2 +-
 .../utils/BoundedSeekableByteChannelInputStreamTest.java       |  2 +-
 .../java/org/apache/commons/compress/utils/ByteUtilsTest.java  |  2 +-
 .../org/apache/commons/compress/utils/CharsetNamesTest.java    |  2 +-
 .../java/org/apache/commons/compress/utils/CharsetsTest.java   |  2 +-
 .../compress/utils/ChecksumCalculatingInputStreamTest.java     |  2 +-
 .../compress/utils/ChecksumVerifyingInputStreamTest.java       |  2 +-
 .../org/apache/commons/compress/utils/CountingStreamTest.java  |  2 +-
 .../java/org/apache/commons/compress/utils/ExactMathTest.java  |  2 +-
 .../org/apache/commons/compress/utils/FileNameUtilsTest.java   |  2 +-
 .../compress/utils/FixedLengthBlockOutputStreamTest.java       |  2 +-
 .../java/org/apache/commons/compress/utils/IOUtilsTest.java    |  2 +-
 .../compress/utils/MultiReadOnlySeekableByteChannelTest.java   |  2 +-
 .../java/org/apache/commons/compress/utils/OsgiUtilsTest.java  |  2 +-
 .../org/apache/commons/compress/utils/ParsingUtilsTest.java    |  2 +-
 .../compress/utils/SeekableInMemoryByteChannelTest.java        |  2 +-
 .../commons/compress/utils/ServiceLoaderIteratorTest.java      |  2 +-
 src/test/java/org/apache/commons/compress/utils/SetsTest.java  |  2 +-
 .../commons/compress/utils/SkipShieldingInputStreamTest.java   |  2 +-
 .../java/org/apache/commons/compress/utils/TimeUtilsTest.java  |  2 +-
 .../utils/ZipSplitReadOnlySeekableByteChannelTest.java         |  2 +-
 190 files changed, 199 insertions(+), 199 deletions(-)

diff --git a/src/test/java/org/apache/commons/compress/ArchiveReadTest.java 
b/src/test/java/org/apache/commons/compress/ArchiveReadTest.java
index 3621370ca..38a548f49 100644
--- a/src/test/java/org/apache/commons/compress/ArchiveReadTest.java
+++ b/src/test/java/org/apache/commons/compress/ArchiveReadTest.java
@@ -43,7 +43,7 @@
  *
  * Files must be in resources/archives, and there must be a file.txt 
containing the list of files in the archives.
  */
-public class ArchiveReadTest extends AbstractTest {
+class ArchiveReadTest extends AbstractTest {
 
     private static final ClassLoader CLASS_LOADER = 
ArchiveReadTest.class.getClassLoader();
     private static final File ARC_DIR;
diff --git a/src/test/java/org/apache/commons/compress/ArchiveUtilsTest.java 
b/src/test/java/org/apache/commons/compress/ArchiveUtilsTest.java
index 4f6d66397..57d18c1fc 100644
--- a/src/test/java/org/apache/commons/compress/ArchiveUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/ArchiveUtilsTest.java
@@ -30,7 +30,7 @@
 import org.apache.commons.compress.utils.ArchiveUtils;
 import org.junit.jupiter.api.Test;
 
-public class ArchiveUtilsTest extends AbstractTest {
+class ArchiveUtilsTest extends AbstractTest {
 
     private static final int bytesToTest = 50;
     private static final byte[] byteTest = new byte[bytesToTest];
diff --git a/src/test/java/org/apache/commons/compress/ChainingTest.java 
b/src/test/java/org/apache/commons/compress/ChainingTest.java
index 9f5ede5ec..e327076c2 100644
--- a/src/test/java/org/apache/commons/compress/ChainingTest.java
+++ b/src/test/java/org/apache/commons/compress/ChainingTest.java
@@ -29,7 +29,7 @@
 import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
 import org.junit.jupiter.api.Test;
 
-public class ChainingTest extends AbstractTest {
+class ChainingTest extends AbstractTest {
 
     @Test
     void testTarBzip2() throws Exception {
diff --git a/src/test/java/org/apache/commons/compress/IOMethodsTest.java 
b/src/test/java/org/apache/commons/compress/IOMethodsTest.java
index d4b854ea6..39ad4ba71 100644
--- a/src/test/java/org/apache/commons/compress/IOMethodsTest.java
+++ b/src/test/java/org/apache/commons/compress/IOMethodsTest.java
@@ -42,7 +42,7 @@
 /**
  * Check that the different write methods create the same output. TODO perform 
the same checks for reads.
  */
-public class IOMethodsTest extends AbstractTest {
+class IOMethodsTest extends AbstractTest {
 
     private static final int bytesToTest = 50;
     private static final byte[] byteTest = new byte[bytesToTest];
diff --git 
a/src/test/java/org/apache/commons/compress/MemoryLimitExceptionTest.java 
b/src/test/java/org/apache/commons/compress/MemoryLimitExceptionTest.java
index 6f4bf463d..8347f9db8 100644
--- a/src/test/java/org/apache/commons/compress/MemoryLimitExceptionTest.java
+++ b/src/test/java/org/apache/commons/compress/MemoryLimitExceptionTest.java
@@ -29,7 +29,7 @@
 /**
  * Tests {@link MemoryLimitException}.
  */
-public class MemoryLimitExceptionTest {
+class MemoryLimitExceptionTest {
 
     @Test
     void testAccessorsCause() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/ArchiveServiceLoaderTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/ArchiveServiceLoaderTest.java
index 523ca8faf..763c08e13 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/ArchiveServiceLoaderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/ArchiveServiceLoaderTest.java
@@ -26,7 +26,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class ArchiveServiceLoaderTest {
+class ArchiveServiceLoaderTest {
 
     @Test
     void testInputStream() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/ArchiveStreamFactoryTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/ArchiveStreamFactoryTest.java
index 46c8fa35d..1fe084286 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/ArchiveStreamFactoryTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/ArchiveStreamFactoryTest.java
@@ -52,7 +52,7 @@
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class ArchiveStreamFactoryTest extends AbstractTest {
+class ArchiveStreamFactoryTest extends AbstractTest {
 
     static class TestData {
         final String testFile;
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/ExceptionMessageTest.java 
b/src/test/java/org/apache/commons/compress/archivers/ExceptionMessageTest.java
index 1ba55f1ee..d2c1d7645 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/ExceptionMessageTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/ExceptionMessageTest.java
@@ -24,7 +24,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class ExceptionMessageTest {
+class ExceptionMessageTest {
 
     private static final String ARCHIVER_NULL_MESSAGE = "Archiver name must 
not be null.";
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/ListerTest.java 
b/src/test/java/org/apache/commons/compress/archivers/ListerTest.java
index dfb618f84..baa7799b6 100644
--- a/src/test/java/org/apache/commons/compress/archivers/ListerTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/ListerTest.java
@@ -29,7 +29,7 @@
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class ListerTest {
+class ListerTest {
 
     /**
      * Creates a stream of paths of test fixtures with file names that don't 
end with {@code "-fail"} for specific file extensions.
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/LongPathTest.java 
b/src/test/java/org/apache/commons/compress/archivers/LongPathTest.java
index 56ab40baa..af0063140 100644
--- a/src/test/java/org/apache/commons/compress/archivers/LongPathTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/LongPathTest.java
@@ -49,7 +49,7 @@
  *
  * Files must be in resources/longpath, and there must be a file.txt 
containing the list of files in the archives.
  */
-public class LongPathTest extends AbstractTest {
+class LongPathTest extends AbstractTest {
 
     private static final ClassLoader CLASS_LOADER = 
LongPathTest.class.getClassLoader();
     private static final File ARC_DIR;
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/LongSymLinkTest.java 
b/src/test/java/org/apache/commons/compress/archivers/LongSymLinkTest.java
index f64edaf34..234086196 100644
--- a/src/test/java/org/apache/commons/compress/archivers/LongSymLinkTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/LongSymLinkTest.java
@@ -48,7 +48,7 @@
  *
  * Files must be in resources/longsymlink, and there must be a file.txt 
containing the list of files in the archives.
  */
-public class LongSymLinkTest extends AbstractTest {
+class LongSymLinkTest extends AbstractTest {
 
     private static final ClassLoader CLASS_LOADER = 
LongSymLinkTest.class.getClassLoader();
     private static final File ARC_DIR;
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/SevenZTest.java 
b/src/test/java/org/apache/commons/compress/archivers/SevenZTest.java
index f8989459e..e102b3a71 100644
--- a/src/test/java/org/apache/commons/compress/archivers/SevenZTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/SevenZTest.java
@@ -41,7 +41,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-public class SevenZTest extends AbstractTest {
+class SevenZTest extends AbstractTest {
 
     private static void assumeStrongCryptoIsAvailable() throws 
NoSuchAlgorithmException {
         assumeTrue(Cipher.getMaxAllowedKeyLength("AES/ECB/PKCS5Padding") >= 
256, "test requires strong crypto");
@@ -52,7 +52,7 @@ private static void assumeStrongCryptoIsAvailable() throws 
NoSuchAlgorithmExcept
     private final File file1;
     private final File file2;
 
-    public SevenZTest() throws IOException {
+    SevenZTest() throws IOException {
         file1 = getFile("test1.xml");
         file2 = getFile("test2.xml");
     }
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveInputStreamTest.java
index 5f2463503..8325f756c 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveInputStreamTest.java
@@ -36,7 +36,7 @@
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-public class ArArchiveInputStreamTest extends AbstractTest {
+class ArArchiveInputStreamTest extends AbstractTest {
 
     private void checkLongNameEntry(final String archive) throws Exception {
         try (InputStream fis = newInputStream(archive);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveOutputStreamTest.java
index 67e63a8d9..123172e0d 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/ar/ArArchiveOutputStreamTest.java
@@ -32,7 +32,7 @@
 import org.apache.commons.compress.AbstractTest;
 import org.junit.jupiter.api.Test;
 
-public class ArArchiveOutputStreamTest extends AbstractTest {
+class ArArchiveOutputStreamTest extends AbstractTest {
 
     @Test
     void testLongFileNamesCauseExceptionByDefault() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/ar/Compress678Test.java 
b/src/test/java/org/apache/commons/compress/archivers/ar/Compress678Test.java
index 825a6815d..53c81f8ce 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/ar/Compress678Test.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/ar/Compress678Test.java
@@ -38,7 +38,7 @@
 /**
  * Tests COMPRESS-678.
  */
-public class Compress678Test {
+class Compress678Test {
 
     @ParameterizedTest
     @ValueSource(ints = { 15, 16, 17, 18, 32, 64, 128 })
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStreamTest.java
index a1a8478e4..d62a90e11 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStreamTest.java
@@ -42,7 +42,7 @@
 /**
  * Tests {@link ArjArchiveInputStream}.
  */
-public class ArjArchiveInputStreamTest extends AbstractTest {
+class ArjArchiveInputStreamTest extends AbstractTest {
 
     private void assertArjArchiveEntry(final ArjArchiveEntry entry) {
         assertNotNull(entry.getName());
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/arj/CoverageTest.java 
b/src/test/java/org/apache/commons/compress/archivers/arj/CoverageTest.java
index 26001b90d..3710b8ccc 100644
--- a/src/test/java/org/apache/commons/compress/archivers/arj/CoverageTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/arj/CoverageTest.java
@@ -23,7 +23,7 @@
 import org.apache.commons.compress.archivers.arj.ArjArchiveEntry.HostOs;
 import org.junit.jupiter.api.Test;
 
-public class CoverageTest {
+class CoverageTest {
 
     @Test
     void testCallLFHToString() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveEntryTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveEntryTest.java
index 41f90f7de..05a4d8400 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveEntryTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveEntryTest.java
@@ -22,7 +22,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class CpioArchiveEntryTest {
+class CpioArchiveEntryTest {
     @Test
     void testGetHeaderPadCountOverflow() throws Exception {
         final CpioArchiveEntry entry = new 
CpioArchiveEntry(CpioConstants.FORMAT_NEW);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java
index c6a55e838..7ac381eb3 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java
@@ -30,7 +30,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class CpioArchiveInputStreamTest extends AbstractTest {
+class CpioArchiveInputStreamTest extends AbstractTest {
 
     private long consumeEntries(final CpioArchiveInputStream in) throws 
IOException {
         long count = 0;
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveOutputStreamTest.java
index 3fb5df512..1dfc94371 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveOutputStreamTest.java
@@ -28,7 +28,7 @@
 import org.apache.commons.compress.AbstractTest;
 import org.junit.jupiter.api.Test;
 
-public class CpioArchiveOutputStreamTest extends AbstractTest {
+class CpioArchiveOutputStreamTest extends AbstractTest {
 
     @Test
     void testWriteOldBinary() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveTest.java 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveTest.java
index 33b161292..805a0cef5 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveTest.java
@@ -33,7 +33,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class CpioArchiveTest {
+class CpioArchiveTest {
 
     public static Stream<Arguments> factory() {
         return Stream.of(Arguments.of(CpioConstants.FORMAT_NEW), 
Arguments.of(CpioConstants.FORMAT_NEW_CRC), 
Arguments.of(CpioConstants.FORMAT_OLD_ASCII),
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioUtilTest.java 
b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioUtilTest.java
index fc809e958..0545c8686 100644
--- a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioUtilTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioUtilTest.java
@@ -24,7 +24,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class CpioUtilTest {
+class CpioUtilTest {
 
     @Test
     void testByteArray2longThrowsUnsupportedOperationException() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveEntryTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveEntryTest.java
index 53f058ded..5d6c1608f 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveEntryTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveEntryTest.java
@@ -22,7 +22,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class DumpArchiveEntryTest {
+class DumpArchiveEntryTest {
     @Test
     void testPublicNameAddsTrailingSlashForDirectories() {
         final DumpArchiveEntry ent = new DumpArchiveEntry("foo", "bar", -1, 
DumpArchiveEntry.TYPE.DIRECTORY);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveInputStreamTest.java
index d9cddf785..46aa17ae0 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveInputStreamTest.java
@@ -37,7 +37,7 @@
 import org.junit.jupiter.api.Timeout;
 import org.junit.jupiter.api.Timeout.ThreadMode;
 
-public class DumpArchiveInputStreamTest extends AbstractTest {
+class DumpArchiveInputStreamTest extends AbstractTest {
 
     @SuppressWarnings("deprecation")
     @Test
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveUtilTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveUtilTest.java
index d85cfb2a9..c85b9ffe2 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveUtilTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/dump/DumpArchiveUtilTest.java
@@ -26,7 +26,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class DumpArchiveUtilTest {
+class DumpArchiveUtilTest {
 
     @Test
     void testConvert16() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/dump/TapeInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/dump/TapeInputStreamTest.java
index 1ad432d98..d5e06488e 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/dump/TapeInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/dump/TapeInputStreamTest.java
@@ -27,7 +27,7 @@
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-public class TapeInputStreamTest extends AbstractTest {
+class TapeInputStreamTest extends AbstractTest {
     @ParameterizedTest
     @ValueSource(ints = {-1, 0, Integer.MAX_VALUE / 1000, Integer.MAX_VALUE})
     void testResetBlockSizeWithInvalidValues(final int recsPerBlock) throws 
Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/examples/ExpanderTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/examples/ExpanderTest.java
index 653e879d4..aad9e0afd 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/examples/ExpanderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/examples/ExpanderTest.java
@@ -48,7 +48,7 @@
 import org.apache.commons.compress.archivers.zip.ZipFile;
 import org.junit.jupiter.api.Test;
 
-public class ExpanderTest extends AbstractTest {
+class ExpanderTest extends AbstractTest {
 
     private File archive;
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedArchiverTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedArchiverTest.java
index ff574d2f1..2dff49440 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedArchiverTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedArchiverTest.java
@@ -47,7 +47,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class ParameterizedArchiverTest extends AbstractTest {
+class ParameterizedArchiverTest extends AbstractTest {
 
     // can't test 7z here as 7z cannot write to non-seekable streams
     // and reading logic would be different as well - see
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedExpanderTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedExpanderTest.java
index bddb37b48..ce26f2873 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedExpanderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/examples/ParameterizedExpanderTest.java
@@ -43,7 +43,7 @@
 import org.junit.jupiter.params.provider.MethodSource;
 import org.junit.runners.Parameterized.Parameters;
 
-public class ParameterizedExpanderTest extends AbstractTest {
+class ParameterizedExpanderTest extends AbstractTest {
 
     // 7z and ZIP using ZipFile is in ExpanderTest
     @Parameters(name = "format={0}")
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/examples/SevenZArchiverTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/examples/SevenZArchiverTest.java
index de56f9a10..f48928341 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/examples/SevenZArchiverTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/examples/SevenZArchiverTest.java
@@ -42,7 +42,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-public class SevenZArchiverTest extends AbstractTest {
+class SevenZArchiverTest extends AbstractTest {
     private File target;
 
     private void assertDir(final String expectedName, final ArchiveEntry 
entry) {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/jar/ExpandApkTest.java 
b/src/test/java/org/apache/commons/compress/archivers/jar/ExpandApkTest.java
index 06b4f3e5f..21cb1732c 100644
--- a/src/test/java/org/apache/commons/compress/archivers/jar/ExpandApkTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/jar/ExpandApkTest.java
@@ -29,7 +29,7 @@
 import org.apache.commons.lang3.stream.Streams;
 import org.junit.jupiter.api.Test;
 
-public class ExpandApkTest {
+class ExpandApkTest {
 
     private <T> T println(final T object) {
         // System.out.println(object);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/jar/JarArchiveOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/jar/JarArchiveOutputStreamTest.java
index 03302c936..9a858edee 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/jar/JarArchiveOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/jar/JarArchiveOutputStreamTest.java
@@ -35,7 +35,7 @@
 import org.apache.commons.compress.archivers.zip.ZipFile;
 import org.junit.jupiter.api.Test;
 
-public class JarArchiveOutputStreamTest extends AbstractTempDirTest {
+class JarArchiveOutputStreamTest extends AbstractTempDirTest {
 
     @Test
     void testJarMarker() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/jar/JarMarkerTest.java 
b/src/test/java/org/apache/commons/compress/archivers/jar/JarMarkerTest.java
index 7bc7abe25..cdee1f238 100644
--- a/src/test/java/org/apache/commons/compress/archivers/jar/JarMarkerTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/jar/JarMarkerTest.java
@@ -25,7 +25,7 @@
 import org.apache.commons.compress.archivers.zip.JarMarker;
 import org.junit.jupiter.api.Test;
 
-public class JarMarkerTest {
+class JarMarkerTest {
 
     @Test
     void testJarMarkerLengthCheck() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/AES256SHA256DecoderTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/AES256SHA256DecoderTest.java
index 83f656af1..6182eafed 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/AES256SHA256DecoderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/AES256SHA256DecoderTest.java
@@ -33,7 +33,7 @@
  *
  * @see AES256SHA256Decoder
  **/
-public class AES256SHA256DecoderTest {
+class AES256SHA256DecoderTest {
 
     @Test
     void testDecodeWithNonEmptyString() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/Compress679Test.java
 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/Compress679Test.java
index 8346afa8b..4f0060b7f 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/Compress679Test.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/Compress679Test.java
@@ -36,7 +36,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class Compress679Test {
+class Compress679Test {
 
     @Test
     void testCompress679() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/CoverageTest.java 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/CoverageTest.java
index 427202587..9a974956e 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/CoverageTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/CoverageTest.java
@@ -23,7 +23,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class CoverageTest {
+class CoverageTest {
 
     @Test
     void testCLIInstance() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/FolderTest.java 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/FolderTest.java
index 0de098b2f..fb909325c 100644
--- a/src/test/java/org/apache/commons/compress/archivers/sevenz/FolderTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/sevenz/FolderTest.java
@@ -27,7 +27,7 @@
  *
  * @see Folder
  */
-public class FolderTest {
+class FolderTest {
 
     @Test
     void testFindBindPairForInStream() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntryTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntryTest.java
index 6bc11e097..1c84671bc 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntryTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntryTest.java
@@ -27,7 +27,7 @@
 /**
  * Tests {@link SevenZArchiveEntry}.
  */
-public class SevenZArchiveEntryTest {
+class SevenZArchiveEntryTest {
 
     @Test
     void testMethodConfigurationMattersInEquals() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZFileTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZFileTest.java
index 8124d104f..12a707a5c 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZFileTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZFileTest.java
@@ -59,7 +59,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class SevenZFileTest extends AbstractTest {
+class SevenZFileTest extends AbstractTest {
     private static final String TEST2_CONTENT = "<?xml version = 
'1.0'?>\r\n<!DOCTYPE" + " connections>\r\n<meinxml>\r\n\t<leer 
/>\r\n</meinxml>\n";
 
     private static boolean isStrongCryptoAvailable() throws 
NoSuchAlgorithmException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZMethodConfigurationTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZMethodConfigurationTest.java
index 87ea1b054..a382907b9 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZMethodConfigurationTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZMethodConfigurationTest.java
@@ -25,7 +25,7 @@
 import org.junit.jupiter.api.Test;
 import org.tukaani.xz.LZMA2Options;
 
-public class SevenZMethodConfigurationTest {
+class SevenZMethodConfigurationTest {
 
     @Test
     void testShouldAllowLZMA2OptionsForLZMA() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZNativeHeapTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZNativeHeapTest.java
index cb6a36936..a3133c75b 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZNativeHeapTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZNativeHeapTest.java
@@ -34,7 +34,7 @@
 import org.apache.commons.compress.utils.ByteUtils;
 import org.junit.jupiter.api.Test;
 
-public class SevenZNativeHeapTest extends AbstractTest {
+class SevenZNativeHeapTest extends AbstractTest {
 
     private static final class DelegatingDeflater extends Deflater {
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZOutputFileTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZOutputFileTest.java
index 715f3d244..b67fbcd03 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZOutputFileTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/sevenz/SevenZOutputFileTest.java
@@ -49,7 +49,7 @@
 import org.junit.jupiter.api.Test;
 import org.tukaani.xz.LZMA2Options;
 
-public class SevenZOutputFileTest extends AbstractTest {
+class SevenZOutputFileTest extends AbstractTest {
 
     private static final boolean XZ_BCJ_IS_BUGGY;
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/Compress699Test.java 
b/src/test/java/org/apache/commons/compress/archivers/tar/Compress699Test.java
index 6a8233242..15a754b3a 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/tar/Compress699Test.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/tar/Compress699Test.java
@@ -32,7 +32,7 @@
 /**
  * Tests https://issues.apache.org/jira/browse/COMPRESS-699
  */
-public class Compress699Test {
+class Compress699Test {
 
     @Test
     void testTarArchive() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/Compress700Test.java 
b/src/test/java/org/apache/commons/compress/archivers/tar/Compress700Test.java
index 0ffa13a16..a778452a1 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/tar/Compress700Test.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/tar/Compress700Test.java
@@ -44,7 +44,7 @@
 /**
  * Tests https://issues.apache.org/jira/browse/COMPRESS-699
  */
-public class Compress700Test {
+class Compress700Test {
 
     private static final Path PATH = 
Paths.get("src/test/resources/org/apache/commons/compress/COMPRESS-700/flutter_awesome_buttons-0.1.0.tar");
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/SparseFilesTest.java 
b/src/test/java/org/apache/commons/compress/archivers/tar/SparseFilesTest.java
index 9f0105990..9f609801c 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/tar/SparseFilesTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/tar/SparseFilesTest.java
@@ -42,7 +42,7 @@
 import org.junit.jupiter.api.condition.EnabledOnOs;
 import org.junit.jupiter.api.condition.OS;
 
-public class SparseFilesTest extends AbstractTest {
+class SparseFilesTest extends AbstractTest {
 
     private void assertPaxGNUEntry(final TarArchiveEntry entry, final String 
suffix) {
         assertEquals("sparsefile-" + suffix, entry.getName());
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveEntryTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveEntryTest.java
index c451107cd..5f4b3ae23 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveEntryTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveEntryTest.java
@@ -50,7 +50,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.EnabledOnOs;
 
-public class TarArchiveEntryTest implements TarConstants {
+class TarArchiveEntryTest implements TarConstants {
 
     private static final String OS = 
SystemProperties.getOsName().toLowerCase(Locale.ROOT);
     private static final String ROOT = OS.startsWith("windows") || 
OS.startsWith("netware") ? "C:\\" : "/";
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveInputStreamTest.java
index e10100e96..66b605a01 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveInputStreamTest.java
@@ -64,7 +64,7 @@
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-public class TarArchiveInputStreamTest extends AbstractTest {
+class TarArchiveInputStreamTest extends AbstractTest {
 
     private void datePriorToEpoch(final String archive) throws Exception {
         try (TarArchiveInputStream in = new 
TarArchiveInputStream(Files.newInputStream(getFile(archive).toPath()))) {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveOutputStreamTest.java
index 59445d94a..4629df2fd 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarArchiveOutputStreamTest.java
@@ -54,7 +54,7 @@
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
-public class TarArchiveOutputStreamTest extends AbstractTest {
+class TarArchiveOutputStreamTest extends AbstractTest {
 
     private static byte[] createTarArchiveContainingOneDirectory(final String 
fileName, final Date modificationDate) throws IOException {
         final ByteArrayOutputStream baos = new ByteArrayOutputStream();
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarFileTest.java 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarFileTest.java
index 6943b87a8..daa10652f 100644
--- a/src/test/java/org/apache/commons/compress/archivers/tar/TarFileTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/tar/TarFileTest.java
@@ -47,7 +47,7 @@
 
 import shaded.org.apache.commons.lang3.StringUtils;
 
-public class TarFileTest extends AbstractTest {
+class TarFileTest extends AbstractTest {
 
     private void datePriorToEpoch(final String archive) throws Exception {
         try (TarFile tarFile = new TarFile(getPath(archive))) {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarMemoryFileSystemTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarMemoryFileSystemTest.java
index 01e9ab4ba..cf444cd98 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarMemoryFileSystemTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarMemoryFileSystemTest.java
@@ -42,7 +42,7 @@
 
 import com.github.marschall.memoryfilesystem.MemoryFileSystemBuilder;
 
-public class TarMemoryFileSystemTest {
+class TarMemoryFileSystemTest {
 
     @Test
     void testCheckUserInformationInTarEntry() throws IOException, 
ArchiveException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/tar/TarUtilsTest.java 
b/src/test/java/org/apache/commons/compress/archivers/tar/TarUtilsTest.java
index 64a230cbd..1e098f83f 100644
--- a/src/test/java/org/apache/commons/compress/archivers/tar/TarUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/tar/TarUtilsTest.java
@@ -42,7 +42,7 @@
 import org.apache.commons.compress.utils.ByteUtils;
 import org.junit.jupiter.api.Test;
 
-public class TarUtilsTest extends AbstractTest {
+class TarUtilsTest extends AbstractTest {
 
     private void checkName(final String string) {
         final byte[] buff = new byte[100];
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/AsiExtraFieldTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/AsiExtraFieldTest.java
index 9a42cf680..35c432546 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/AsiExtraFieldTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/AsiExtraFieldTest.java
@@ -30,7 +30,7 @@
 /**
  * JUnit tests for org.apache.commons.compress.archivers.zip.AsiExtraField.
  */
-public class AsiExtraFieldTest implements UnixStat {
+class AsiExtraFieldTest implements UnixStat {
 
     @Test
     void testClone() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/BinaryTreeTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/BinaryTreeTest.java
index d4647ba5e..c8233a366 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/BinaryTreeTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/BinaryTreeTest.java
@@ -29,7 +29,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class BinaryTreeTest {
+class BinaryTreeTest {
 
     @Test
     void testDecode() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/BitStreamTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/BitStreamTest.java
index 7f5a82c14..6addf8ad3 100644
--- a/src/test/java/org/apache/commons/compress/archivers/zip/BitStreamTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/zip/BitStreamTest.java
@@ -26,7 +26,7 @@
 import org.apache.commons.compress.utils.ByteUtils;
 import org.junit.jupiter.api.Test;
 
-public class BitStreamTest {
+class BitStreamTest {
 
     @Test
     void testNextByte() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/CircularBufferTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/CircularBufferTest.java
index 10c93f6aa..e5656d00c 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/CircularBufferTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/CircularBufferTest.java
@@ -25,7 +25,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class CircularBufferTest {
+class CircularBufferTest {
 
     @Test
     void testCopy() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/Crash_f2efd9eaeb86cda597d07b5e3c3d81363633c2da_Test.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/Crash_f2efd9eaeb86cda597d07b5e3c3d81363633c2da_Test.java
index 854b16a12..badfabdc5 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/Crash_f2efd9eaeb86cda597d07b5e3c3d81363633c2da_Test.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/Crash_f2efd9eaeb86cda597d07b5e3c3d81363633c2da_Test.java
@@ -32,7 +32,7 @@
 /**
  * Tests https://issues.apache.org/jira/browse/COMPRESS-598
  */
-public class Crash_f2efd9eaeb86cda597d07b5e3c3d81363633c2da_Test {
+class Crash_f2efd9eaeb86cda597d07b5e3c3d81363633c2da_Test {
 
     @Test
     void test() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/DataDescriptorTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/DataDescriptorTest.java
index 562ab583c..ab0f8cc96 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/DataDescriptorTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/DataDescriptorTest.java
@@ -33,7 +33,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 
-public class DataDescriptorTest {
+class DataDescriptorTest {
 
     @TempDir
     private File dir;
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/EncryptedArchiveTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/EncryptedArchiveTest.java
index 898dbf3a7..888cefdad 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/EncryptedArchiveTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/EncryptedArchiveTest.java
@@ -32,7 +32,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class EncryptedArchiveTest {
+class EncryptedArchiveTest {
 
     @Test
     void testReadPasswordEncryptedEntryViaStream() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ExplodeSupportTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ExplodeSupportTest.java
index d09ed3ed8..60451e946 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ExplodeSupportTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ExplodeSupportTest.java
@@ -36,7 +36,7 @@
 import org.apache.commons.io.input.BoundedInputStream;
 import org.junit.jupiter.api.Test;
 
-public class ExplodeSupportTest {
+class ExplodeSupportTest {
 
     private void testArchiveWithImplodeCompression(final String fileName, 
final String entryName) throws IOException {
         try (ZipFile zip = ZipFile.builder().setFile(fileName).get()) {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ExtraFieldUtilsTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ExtraFieldUtilsTest.java
index f565ca80c..0d4c10424 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ExtraFieldUtilsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ExtraFieldUtilsTest.java
@@ -31,7 +31,7 @@
 /**
  * JUnit tests for org.apache.commons.compress.archivers.zip.ExtraFieldUtils.
  */
-public class ExtraFieldUtilsTest implements UnixStat {
+class ExtraFieldUtilsTest implements UnixStat {
 
     public static class AiobThrowingExtraField implements ZipExtraField {
         static final int LENGTH = 4;
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/FileRandomAccessOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/FileRandomAccessOutputStreamTest.java
index a5d6ce7cc..8e477defc 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/FileRandomAccessOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/FileRandomAccessOutputStreamTest.java
@@ -40,7 +40,7 @@
 /**
  * Tests {@link FileRandomAccessOutputStream}.
  */
-public class FileRandomAccessOutputStreamTest extends AbstractTempDirTest {
+class FileRandomAccessOutputStreamTest extends AbstractTempDirTest {
 
     @Test
     void testChannelReturn() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/GeneralPurposeBitTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/GeneralPurposeBitTest.java
index 5a77a5be6..b6b0dd490 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/GeneralPurposeBitTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/GeneralPurposeBitTest.java
@@ -27,7 +27,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class GeneralPurposeBitTest {
+class GeneralPurposeBitTest {
 
     @Test
     void testClone() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/Maven221MultiVolumeTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/Maven221MultiVolumeTest.java
index 4eb222baa..6c11e5128 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/Maven221MultiVolumeTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/Maven221MultiVolumeTest.java
@@ -38,7 +38,7 @@
  * This test is intended to prove that this error doesn't occur anymore. All 
entries but the last one are returned correctly, the last entry yields an
  * exception.
  */
-public class Maven221MultiVolumeTest extends AbstractTest {
+class Maven221MultiVolumeTest extends AbstractTest {
 
     private static final String[] ENTRIES = {
         // @formatter:off
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/NioZipEncodingTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/NioZipEncodingTest.java
index 3c0d548b8..261b9bee0 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/NioZipEncodingTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/NioZipEncodingTest.java
@@ -31,7 +31,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class NioZipEncodingTest {
+class NioZipEncodingTest {
 
     private static final String UMLAUTS = "\u00e4\u00f6\u00fc";
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ParallelScatterZipCreatorTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ParallelScatterZipCreatorTest.java
index 4dc5c70e5..fec5b72e8 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ParallelScatterZipCreatorTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ParallelScatterZipCreatorTest.java
@@ -55,7 +55,7 @@
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
-public class ParallelScatterZipCreatorTest extends AbstractTempDirTest {
+class ParallelScatterZipCreatorTest extends AbstractTempDirTest {
 
     private interface CallableConsumer extends Consumer<Callable<? extends 
ScatterZipOutputStream>> {
         // empty
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/PkWareExtraHeaderTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/PkWareExtraHeaderTest.java
index 2100c898b..ed0c879d6 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/PkWareExtraHeaderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/PkWareExtraHeaderTest.java
@@ -25,7 +25,7 @@
 import 
org.apache.commons.compress.archivers.zip.PKWareExtraHeader.HashAlgorithm;
 import org.junit.jupiter.api.Test;
 
-public class PkWareExtraHeaderTest {
+class PkWareExtraHeaderTest {
 
     @Test
     void testEncryptionAlgorithm() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/RandomAccessOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/RandomAccessOutputStreamTest.java
index d9cf140f4..3c59d2ece 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/RandomAccessOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/RandomAccessOutputStreamTest.java
@@ -32,7 +32,7 @@
 /**
  * Tests {@link RandomAccessOutputStream}.
  */
-public class RandomAccessOutputStreamTest extends AbstractTempDirTest {
+class RandomAccessOutputStreamTest extends AbstractTempDirTest {
 
     @Test
     void testWrite() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ScatterSampleTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ScatterSampleTest.java
index 809d00f44..04533ee98 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ScatterSampleTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ScatterSampleTest.java
@@ -33,7 +33,7 @@
 import org.apache.commons.compress.utils.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class ScatterSampleTest extends AbstractTempDirTest {
+class ScatterSampleTest extends AbstractTempDirTest {
 
     private void checkFile(final File result) throws IOException {
         try (ZipFile zipFile = ZipFile.builder().setFile(result).get()) {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ScatterZipOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ScatterZipOutputStreamTest.java
index 74c402676..59df0ce54 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ScatterZipOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ScatterZipOutputStreamTest.java
@@ -32,7 +32,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class ScatterZipOutputStreamTest extends AbstractTempDirTest {
+class ScatterZipOutputStreamTest extends AbstractTempDirTest {
 
     private InputStreamSupplier createPayloadSupplier(final 
ByteArrayInputStream payload) {
         return () -> payload;
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/SeekableChannelRandomAccessOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/SeekableChannelRandomAccessOutputStreamTest.java
index 8df45faa2..2ce48e253 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/SeekableChannelRandomAccessOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/SeekableChannelRandomAccessOutputStreamTest.java
@@ -43,7 +43,7 @@
 /**
  * Tests {@link SeekableChannelRandomAccessOutputStream}.
  */
-public class SeekableChannelRandomAccessOutputStreamTest extends 
AbstractTempDirTest {
+class SeekableChannelRandomAccessOutputStreamTest extends AbstractTempDirTest {
 
     @Test
     void testInitialization() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/StreamCompressorTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/StreamCompressorTest.java
index a3ce1b491..7b2e51937 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/StreamCompressorTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/StreamCompressorTest.java
@@ -32,7 +32,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class StreamCompressorTest {
+class StreamCompressorTest {
 
     @Test
     void testCreateDataOutputCompressor() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/UTF8ZipFilesTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/UTF8ZipFilesTest.java
index 5762f7bd0..b028a2d29 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/UTF8ZipFilesTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/UTF8ZipFilesTest.java
@@ -37,7 +37,7 @@
 import org.apache.commons.compress.AbstractTest;
 import org.junit.jupiter.api.Test;
 
-public class UTF8ZipFilesTest extends AbstractTest {
+class UTF8ZipFilesTest extends AbstractTest {
 
     private static final String CP437 = "cp437";
     private static final String ASCII_TXT = "ascii.txt";
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/X000A_NTFSTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/X000A_NTFSTest.java
index 7c94a8d65..8eeb5045e 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/X000A_NTFSTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/X000A_NTFSTest.java
@@ -27,7 +27,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class X000A_NTFSTest {
+class X000A_NTFSTest {
 
     @Test
     void testSimpleRoundtrip() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/X5455_ExtendedTimestampTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/X5455_ExtendedTimestampTest.java
index f3b25894a..a25017642 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/X5455_ExtendedTimestampTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/X5455_ExtendedTimestampTest.java
@@ -48,7 +48,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 
-public class X5455_ExtendedTimestampTest {
+class X5455_ExtendedTimestampTest {
     private static final ZipShort X5455 = new ZipShort(0x5455);
 
     private static final ZipLong ZERO_TIME = new ZipLong(0);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/X7875_NewUnixTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/X7875_NewUnixTest.java
index 22bab313a..5d28a5e53 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/X7875_NewUnixTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/X7875_NewUnixTest.java
@@ -31,7 +31,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-public class X7875_NewUnixTest {
+class X7875_NewUnixTest {
 
     private static final ZipShort X7875 = new ZipShort(0x7875);
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/Zip64ExtendedInformationExtraFieldTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/Zip64ExtendedInformationExtraFieldTest.java
index b3fb4d260..27d9324d7 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/Zip64ExtendedInformationExtraFieldTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/Zip64ExtendedInformationExtraFieldTest.java
@@ -27,7 +27,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class Zip64ExtendedInformationExtraFieldTest {
+class Zip64ExtendedInformationExtraFieldTest {
 
     private static final ZipEightByteInteger SIZE = new 
ZipEightByteInteger(0x12345678);
     private static final ZipEightByteInteger CSIZE = new 
ZipEightByteInteger(0x9ABCDEF);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveEntryTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveEntryTest.java
index 997ded651..5a8a4f3f6 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveEntryTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveEntryTest.java
@@ -44,7 +44,7 @@
 /**
  * JUnit tests for org.apache.commons.compress.archivers.zip.ZipEntry.
  */
-public class ZipArchiveEntryTest {
+class ZipArchiveEntryTest {
 
     @Test
     void bestEffortIncludesUnparseableExtraData() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveInputStreamTest.java
index a712baa36..0c44a826f 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveInputStreamTest.java
@@ -60,7 +60,7 @@
 
 import io.airlift.compress.zstd.ZstdInputStream;
 
-public class ZipArchiveInputStreamTest extends AbstractTest {
+class ZipArchiveInputStreamTest extends AbstractTest {
 
     private static final class AirliftZipArchiveInputStream extends 
ZipArchiveInputStream {
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveOutputStreamTest.java
index 361cb82a3..c576cd4fd 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipArchiveOutputStreamTest.java
@@ -35,7 +35,7 @@
 /**
  * Tests {@link ZipArchiveOutputStream}.
  */
-public class ZipArchiveOutputStreamTest extends AbstractTempDirTest {
+class ZipArchiveOutputStreamTest extends AbstractTempDirTest {
 
     @Test
     void testFileBasics() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipClassCoverageTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipClassCoverageTest.java
index 78d61fdc2..69f3da982 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipClassCoverageTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipClassCoverageTest.java
@@ -28,7 +28,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class ZipClassCoverageTest {
+class ZipClassCoverageTest {
 
     @Test
     void testConstantConstructor() throws NoSuchMethodException, 
IllegalAccessException, InvocationTargetException, InstantiationException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodXzTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodXzTest.java
index e44f849df..3c4eadec7 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodXzTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodXzTest.java
@@ -37,7 +37,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 
-public class ZipCompressMethodXzTest extends AbstractTest {
+class ZipCompressMethodXzTest extends AbstractTest {
 
     private static final int DEFAULT_LEVEL = 6;
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodZstdTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodZstdTest.java
index 893ee406d..3dd012117 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodZstdTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipCompressMethodZstdTest.java
@@ -39,7 +39,7 @@
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.EnumSource;
 
-public class ZipCompressMethodZstdTest extends AbstractTest {
+class ZipCompressMethodZstdTest extends AbstractTest {
 
     private static final int DEFAULT_LEVEL = 3;
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java
index 9f2d5d60d..cf47dc8ab 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java
@@ -29,7 +29,7 @@
 /**
  * Tests {@link ZipEightByteInteger}.
  */
-public class ZipEightByteIntegerTest {
+class ZipEightByteIntegerTest {
 
     private byte[] getBytes(final ZipEightByteInteger zl) {
         final byte[] result = zl.getBytes();
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingHelperTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingHelperTest.java
index 9edc497a5..037a25cc7 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingHelperTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingHelperTest.java
@@ -28,7 +28,7 @@
 /**
  * Tests {@link ZipEncodingHelper}.
  */
-public class ZipEncodingHelperTest {
+class ZipEncodingHelperTest {
 
     @Test
     void testGetZipEncodingForDefault() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingTest.java
index 65ab70f82..d565702c3 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEncodingTest.java
@@ -34,7 +34,7 @@
 /**
  * Test ZIP encodings.
  */
-public class ZipEncodingTest {
+class ZipEncodingTest {
 
     private static final String UNENC_STRING = "\u2016";
 
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileIgnoringLocalFileHeaderTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileIgnoringLocalFileHeaderTest.java
index 4a63a899c..397a09723 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileIgnoringLocalFileHeaderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileIgnoringLocalFileHeaderTest.java
@@ -33,7 +33,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 
-public class ZipFileIgnoringLocalFileHeaderTest {
+class ZipFileIgnoringLocalFileHeaderTest {
 
     private static ZipFile openZipWithoutLocalFileHeader(final String 
fileName) throws IOException {
         // @formatter:off
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileTest.java
index 4e8b85d71..9d7e56a35 100644
--- a/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/zip/ZipFileTest.java
@@ -68,7 +68,7 @@
 
 import io.airlift.compress.zstd.ZstdInputStream;
 
-public class ZipFileTest extends AbstractTest {
+class ZipFileTest extends AbstractTest {
 
     /**
      * This Class simulates the case where the Zip File uses the 
aircompressors {@link ZstdInputStream}
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipIoUtilTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipIoUtilTest.java
index 10fb68f3f..68bffa0df 100644
--- a/src/test/java/org/apache/commons/compress/archivers/zip/ZipIoUtilTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/zip/ZipIoUtilTest.java
@@ -40,7 +40,7 @@
 /**
  * Tests {@link ZipIoUtil}.
  */
-public class ZipIoUtilTest extends AbstractTempDirTest {
+class ZipIoUtilTest extends AbstractTempDirTest {
 
     private FileChannel mockFileChannel() throws IOException {
         final FileChannel spy = spy(FileChannel.class);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipLongTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipLongTest.java
index 805b14322..ba0e689a0 100644
--- a/src/test/java/org/apache/commons/compress/archivers/zip/ZipLongTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/zip/ZipLongTest.java
@@ -28,7 +28,7 @@
 /**
  * JUnit tests for org.apache.commons.compress.archivers.zip.ZipLong.
  */
-public class ZipLongTest {
+class ZipLongTest {
 
     @Test
     void testClone() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipMemoryFileSystemTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipMemoryFileSystemTest.java
index 2286f7899..60c6fadbd 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipMemoryFileSystemTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipMemoryFileSystemTest.java
@@ -63,7 +63,7 @@
 
 import com.github.marschall.memoryfilesystem.MemoryFileSystemBuilder;
 
-public class ZipMemoryFileSystemTest {
+class ZipMemoryFileSystemTest {
 
     static void println(final String x) {
         // System.out.println(x);
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipShortTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipShortTest.java
index 665132283..fd317edde 100644
--- a/src/test/java/org/apache/commons/compress/archivers/zip/ZipShortTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/zip/ZipShortTest.java
@@ -28,7 +28,7 @@
 /**
  * JUnit tests for org.apache.commons.compress.archivers.zip.ZipShort.
  */
-public class ZipShortTest {
+class ZipShortTest {
 
     @Test
     void testClone() {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipSplitOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipSplitOutputStreamTest.java
index 051202b77..4fe3ea90c 100644
--- 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipSplitOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipSplitOutputStreamTest.java
@@ -31,7 +31,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class ZipSplitOutputStreamTest extends AbstractTest {
+class ZipSplitOutputStreamTest extends AbstractTest {
 
     @Test
     void testCreateSplittedFiles() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/archivers/zip/ZipUtilTest.java 
b/src/test/java/org/apache/commons/compress/archivers/zip/ZipUtilTest.java
index b3732db20..52b481d63 100644
--- a/src/test/java/org/apache/commons/compress/archivers/zip/ZipUtilTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/zip/ZipUtilTest.java
@@ -36,7 +36,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-public class ZipUtilTest {
+class ZipUtilTest {
 
     static void assertDosDate(final long value, final int year, final int 
month, final int day, final int hour, final int minute, final int second) {
         int pos = 0;
diff --git a/src/test/java/org/apache/commons/compress/changes/ChangeTest.java 
b/src/test/java/org/apache/commons/compress/changes/ChangeTest.java
index 47e8e372e..16270b3bc 100644
--- a/src/test/java/org/apache/commons/compress/changes/ChangeTest.java
+++ b/src/test/java/org/apache/commons/compress/changes/ChangeTest.java
@@ -31,7 +31,7 @@
  *
  * @see Change
  */
-public class ChangeTest {
+class ChangeTest {
 
     @Test
     void 
testFailsToCreateChangeTakingFourArgumentsThrowsNullPointerExceptionOne() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/BZip2UtilsTest.java 
b/src/test/java/org/apache/commons/compress/compressors/BZip2UtilsTest.java
index 58995ef0e..dbd2d7d40 100644
--- a/src/test/java/org/apache/commons/compress/compressors/BZip2UtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/compressors/BZip2UtilsTest.java
@@ -25,7 +25,7 @@
 import org.apache.commons.compress.compressors.bzip2.BZip2Utils;
 import org.junit.jupiter.api.Test;
 
-public class BZip2UtilsTest {
+class BZip2UtilsTest {
 
     @SuppressWarnings("deprecation")
     @Test
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/CompressorServiceLoaderTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/CompressorServiceLoaderTest.java
index 6a2f753bc..499763153 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/CompressorServiceLoaderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/CompressorServiceLoaderTest.java
@@ -28,7 +28,7 @@
 import org.apache.commons.lang3.ArrayUtils;
 import org.junit.jupiter.api.Test;
 
-public class CompressorServiceLoaderTest {
+class CompressorServiceLoaderTest {
 
     @Test
     void testInputStream() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/CompressorStreamFactoryRoundtripTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/CompressorStreamFactoryRoundtripTest.java
index 8ced2b620..904ede9b4 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/CompressorStreamFactoryRoundtripTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/CompressorStreamFactoryRoundtripTest.java
@@ -30,7 +30,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class CompressorStreamFactoryRoundtripTest {
+class CompressorStreamFactoryRoundtripTest {
 
     public static Stream<Arguments> data() {
         // @formatter:off
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/GzipUtilsTest.java 
b/src/test/java/org/apache/commons/compress/compressors/GzipUtilsTest.java
index e29802aab..37d9cd6b5 100644
--- a/src/test/java/org/apache/commons/compress/compressors/GzipUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/compressors/GzipUtilsTest.java
@@ -28,7 +28,7 @@
 /**
  * Tests {@link GzipUtils}.
  */
-public class GzipUtilsTest {
+class GzipUtilsTest {
 
     @SuppressWarnings("deprecation")
     @Test
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/brotli/BrotliCompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/brotli/BrotliCompressorInputStreamTest.java
index 86f9cdf11..b2744c3d9 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/brotli/BrotliCompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/brotli/BrotliCompressorInputStreamTest.java
@@ -35,7 +35,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class BrotliCompressorInputStreamTest extends AbstractTest {
+class BrotliCompressorInputStreamTest extends AbstractTest {
 
     @Test
     void testAvailableShouldReturnZero() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2Compress651Test.java
 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2Compress651Test.java
index 41a02edd0..f0155651b 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2Compress651Test.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2Compress651Test.java
@@ -34,7 +34,7 @@
 /**
  * Tests https://issues.apache.org/jira/browse/COMPRESS-651
  */
-public class BZip2Compress651Test {
+class BZip2Compress651Test {
 
     @Test
     void testCompress651() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2CompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2CompressorInputStreamTest.java
index 7f0aea53b..f63114b4a 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2CompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2CompressorInputStreamTest.java
@@ -36,7 +36,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class BZip2CompressorInputStreamTest extends AbstractTest {
+class BZip2CompressorInputStreamTest extends AbstractTest {
 
     private void fuzzingTest(final int[] bytes) throws IOException, 
ArchiveException {
         final int len = bytes.length;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2NSelectorsOverflowTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2NSelectorsOverflowTest.java
index 80ce284cd..3fdbfbf46 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2NSelectorsOverflowTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BZip2NSelectorsOverflowTest.java
@@ -27,7 +27,7 @@
 import org.apache.commons.compress.AbstractTest;
 import org.junit.jupiter.api.Test;
 
-public class BZip2NSelectorsOverflowTest extends AbstractTest {
+class BZip2NSelectorsOverflowTest extends AbstractTest {
 
     /**
      * See https://sourceware.org/ml/bzip2-devel/2019-q3/msg00007.html
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BlockSortTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BlockSortTest.java
index 563eb8469..489cc490a 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/BlockSortTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/BlockSortTest.java
@@ -23,7 +23,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class BlockSortTest {
+class BlockSortTest {
 
     private static final class DS {
         private final BZip2CompressorOutputStream.Data data;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/Compress686Test.java
 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/Compress686Test.java
index 7a98e3fbe..8801219f2 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/Compress686Test.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/Compress686Test.java
@@ -38,7 +38,7 @@
 /**
  * Tests COMPRESS-686.
  */
-public class Compress686Test {
+class Compress686Test {
 
     @TempDir
     private Path tempDir;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/PythonTruncatedBzip2Test.java
 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/PythonTruncatedBzip2Test.java
index af0fc326c..f2c8521ca 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/bzip2/PythonTruncatedBzip2Test.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/bzip2/PythonTruncatedBzip2Test.java
@@ -41,7 +41,7 @@
  *
  * @see "https://issues.apache.org/jira/browse/COMPRESS-253";
  */
-public class PythonTruncatedBzip2Test {
+class PythonTruncatedBzip2Test {
 
     // @formatter:off
     private static final String TEXT = 
"root:x:0:0:root:/root:/bin/bash\nbin:x:1:1:bin:/bin:\ndaemon:x:2:2:daemon:/sbin:\nadm:x:3:4:adm:/var/adm:\nlp:x:4:7:"
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorInputStreamTest.java
index d452ee51d..729f857c9 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorInputStreamTest.java
@@ -29,7 +29,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class DeflateCompressorInputStreamTest {
+class DeflateCompressorInputStreamTest {
 
     @Test
     void testAvailableShouldReturnNonZero() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStreamTest.java
index e923a3455..7a97e3ccf 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStreamTest.java
@@ -25,7 +25,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class DeflateCompressorOutputStreamTest {
+class DeflateCompressorOutputStreamTest {
 
     @Test
     void testCanReadASingleByteFlushAndFinish() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateParametersTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateParametersTest.java
index 05d2b1a81..e74112f0b 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateParametersTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/deflate/DeflateParametersTest.java
@@ -23,7 +23,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class DeflateParametersTest {
+class DeflateParametersTest {
 
     @Test
     void testShouldBeAbleToSetCompressionLevel() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64BugsTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64BugsTest.java
index e3797eb23..bd2db34d6 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64BugsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64BugsTest.java
@@ -25,7 +25,7 @@
 import org.apache.commons.compress.archivers.zip.ZipFile;
 import org.junit.jupiter.api.Test;
 
-public class Deflate64BugsTest {
+class Deflate64BugsTest {
 
     @Test
     void testReadBeyondMemoryException() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64CompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64CompressorInputStreamTest.java
index 6ac562faf..3fb8760c7 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64CompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/deflate64/Deflate64CompressorInputStreamTest.java
@@ -42,7 +42,7 @@
 import org.mockito.junit.jupiter.MockitoExtension;
 
 @ExtendWith(MockitoExtension.class)
-public class Deflate64CompressorInputStreamTest {
+class Deflate64CompressorInputStreamTest {
     private final HuffmanDecoder nullDecoder = null;
 
     @Mock
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/deflate64/HuffmanDecoderTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/deflate64/HuffmanDecoderTest.java
index 009851f7a..bb20912d7 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/deflate64/HuffmanDecoderTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/deflate64/HuffmanDecoderTest.java
@@ -27,7 +27,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class HuffmanDecoderTest {
+class HuffmanDecoderTest {
 
     @Test
     void testDecodeFixedHuffmanBlockWithMemoryLookup() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/gzip/ExtraFieldTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/gzip/ExtraFieldTest.java
index ce31ebe61..db21dc489 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/gzip/ExtraFieldTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/gzip/ExtraFieldTest.java
@@ -29,7 +29,7 @@
 /**
  * Tests {@link ExtraField}.
  */
-public class ExtraFieldTest {
+class ExtraFieldTest {
 
     @Test
     void testEquals() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorInputStreamTest.java
index 0f8d79dc2..de3df13d9 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorInputStreamTest.java
@@ -44,7 +44,7 @@
 /**
  * Tests {@link GzipCompressorInputStream}.
  */
-public class GzipCompressorInputStreamTest {
+class GzipCompressorInputStreamTest {
 
     @TempDir
     Path tempDir;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorOutputStreamTest.java
index b13687e10..04d01e22b 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/gzip/GzipCompressorOutputStreamTest.java
@@ -55,7 +55,7 @@
 /**
  * Tests {@link GzipCompressorOutputStream}.
  */
-public class GzipCompressorOutputStreamTest {
+class GzipCompressorOutputStreamTest {
 
     private static final String EXPECTED_BASE_NAME = 
"\u6D4B\u8BD5\u4E2D\u6587\u540D\u79F0";
     private static final String EXPECTED_FILE_NAME = EXPECTED_BASE_NAME + 
".xml";
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/gzip/GzipParametersTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/gzip/GzipParametersTest.java
index bb64f670b..85e0e1058 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/gzip/GzipParametersTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/gzip/GzipParametersTest.java
@@ -36,7 +36,7 @@
 /**
  * Tests {@link GzipParameters}.
  */
-public class GzipParametersTest {
+class GzipParametersTest {
 
     @Test
     void testDeflaterStrategy() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/gzip/SubFieldTest.java 
b/src/test/java/org/apache/commons/compress/compressors/gzip/SubFieldTest.java
index 7667a6068..e23fd23ca 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/gzip/SubFieldTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/gzip/SubFieldTest.java
@@ -28,7 +28,7 @@
 /**
  * Tests {@link ExtraField.SubField}.
  */
-public class SubFieldTest {
+class SubFieldTest {
 
     @Test
     void testEquals() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorInputStreamTest.java
index 9764f44c7..cd34c7327 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorInputStreamTest.java
@@ -30,7 +30,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class BlockLZ4CompressorInputStreamTest extends AbstractTest {
+class BlockLZ4CompressorInputStreamTest extends AbstractTest {
 
     @Test
     void testMultiByteReadConsistentlyReturnsMinusOneAtEof() throws 
IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorOutputStreamTest.java
index ca17eb7d3..d9e9eff1f 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz4/BlockLZ4CompressorOutputStreamTest.java
@@ -32,7 +32,7 @@
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
-public class BlockLZ4CompressorOutputStreamTest {
+class BlockLZ4CompressorOutputStreamTest {
 
     @Test
     @Disabled("would pass if the algorithm used for rewriting the final pairs 
was smarter")
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz4/CompressionDegradationTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz4/CompressionDegradationTest.java
index afc67c7ec..730b62cd0 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz4/CompressionDegradationTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz4/CompressionDegradationTest.java
@@ -34,7 +34,7 @@
 /**
  * Tests COMPRESS-649.
  */
-public class CompressionDegradationTest {
+class CompressionDegradationTest {
 
     private static String compress(final String value) throws IOException {
         try (ByteArrayOutputStream byteStream = new 
ByteArrayOutputStream(value.length());
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz4/FactoryTest.java 
b/src/test/java/org/apache/commons/compress/compressors/lz4/FactoryTest.java
index c5a7811ab..92d91f2ff 100644
--- a/src/test/java/org/apache/commons/compress/compressors/lz4/FactoryTest.java
+++ b/src/test/java/org/apache/commons/compress/compressors/lz4/FactoryTest.java
@@ -31,7 +31,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class FactoryTest extends AbstractTest {
+class FactoryTest extends AbstractTest {
 
     private void roundtripViaFactory(final String format) throws Exception {
         final Path input = getPath("bla.tar");
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz4/FramedLZ4CompressorOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz4/FramedLZ4CompressorOutputStreamTest.java
index 75a5ff0bf..274611ae0 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz4/FramedLZ4CompressorOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz4/FramedLZ4CompressorOutputStreamTest.java
@@ -26,7 +26,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class FramedLZ4CompressorOutputStreamTest {
+class FramedLZ4CompressorOutputStreamTest {
 
     @Test
     void testFinishWithNoWrite() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz4/XXHash32Test.java 
b/src/test/java/org/apache/commons/compress/compressors/lz4/XXHash32Test.java
index 9c0c74426..e2cf7b894 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz4/XXHash32Test.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz4/XXHash32Test.java
@@ -32,7 +32,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class XXHash32Test {
+class XXHash32Test {
 
     public static Stream<Arguments> factory() {
         return Stream.of(
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/AbstractLZ77CompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/AbstractLZ77CompressorInputStreamTest.java
index dbb5c1e7c..42afb5c30 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/AbstractLZ77CompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/AbstractLZ77CompressorInputStreamTest.java
@@ -29,7 +29,7 @@
 import org.apache.commons.compress.utils.ByteUtils;
 import org.junit.jupiter.api.Test;
 
-public class AbstractLZ77CompressorInputStreamTest {
+class AbstractLZ77CompressorInputStreamTest {
 
     private static final class TestStream extends 
AbstractLZ77CompressorInputStream {
 
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorBlockTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorBlockTest.java
index bb16058c1..de2bd46b3 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorBlockTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorBlockTest.java
@@ -31,7 +31,7 @@
 /**
  * Tests {@link LZ77Compressor.Block}.
  */
-public class LZ77CompressorBlockTest {
+class LZ77CompressorBlockTest {
 
     @SuppressWarnings("deprecation")
     static final class DeprecatedBlock extends Block {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorTest.java
index cd4c4b5f2..624a40cd2 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/LZ77CompressorTest.java
@@ -30,7 +30,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class LZ77CompressorTest {
+class LZ77CompressorTest {
 
     private static final byte[] BLA;
     private static final byte[] SAM;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/ParametersTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/ParametersTest.java
index f4414497e..56d1d5593 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lz77support/ParametersTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lz77support/ParametersTest.java
@@ -23,7 +23,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class ParametersTest {
+class ParametersTest {
 
     private static Parameters newParameters(final int windowSize) {
         return Parameters.builder(windowSize).build();
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lzma/LZMACompressorOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/lzma/LZMACompressorOutputStreamTest.java
index b97f0e4bd..2aa1d5dd7 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lzma/LZMACompressorOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lzma/LZMACompressorOutputStreamTest.java
@@ -33,7 +33,7 @@
 /**
  * Tests {@link LZMACompressorOutputStream}.
  */
-public class LZMACompressorOutputStreamTest {
+class LZMACompressorOutputStreamTest {
 
     @TempDir
     static Path tempDir;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/lzma/LZMAUtilsTest.java 
b/src/test/java/org/apache/commons/compress/compressors/lzma/LZMAUtilsTest.java
index 919db9cf2..cb26f7f98 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/lzma/LZMAUtilsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/lzma/LZMAUtilsTest.java
@@ -27,7 +27,7 @@
 /**
  * Tests {@link LZMAUtils}.
  */
-public class LZMAUtilsTest {
+class LZMAUtilsTest {
 
     @Test
     void testCachingIsEnabledByDefaultAndLZMAIsPresent() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/pack200/Compress687Test.java
 
b/src/test/java/org/apache/commons/compress/compressors/pack200/Compress687Test.java
index a131aa698..1f2728b9b 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/pack200/Compress687Test.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/pack200/Compress687Test.java
@@ -30,7 +30,7 @@
 /**
  * Tests <a 
href="https://issues.apache.org/jira/browse/COMPRESS-687";>COMPRESS-687</a>.
  */
-public class Compress687Test {
+class Compress687Test {
 
     private static final String FIXTURE = 
"org/apache/commons/compress/COMPRESS-687/test-issue.7z";
     private static final int BUFFER_SIZE = 16_384;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorInputStreamTest.java
index ce5a67128..d4790ba92 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorInputStreamTest.java
@@ -31,7 +31,7 @@
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-public class XZCompressorInputStreamTest {
+class XZCompressorInputStreamTest {
     private void multiByteReadConsistentlyReturnsMinusOneAtEof(final boolean 
decompressConcatenated) throws IOException {
         final File input = getFile("bla.tar.xz");
         final byte[] buf = new byte[2];
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorOutputStreamTest.java
index ca740ed84..479cf07fc 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorOutputStreamTest.java
@@ -32,7 +32,7 @@
  *
  * @see XZCompressorOutputStream
  */
-public class XZCompressorOutputStreamTest {
+class XZCompressorOutputStreamTest {
 
     @Test
     void testWrite() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorRoundtripTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorRoundtripTest.java
index c5c146728..54d0b2ff9 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorRoundtripTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/xz/XZCompressorRoundtripTest.java
@@ -40,7 +40,7 @@
  * @see XZCompressorOutputStream
  * @see XZCompressorInputStream
  */
-public class XZCompressorRoundtripTest {
+class XZCompressorRoundtripTest {
 
     @TempDir
     static Path tempDir;
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/xz/XZUtilsTest.java 
b/src/test/java/org/apache/commons/compress/compressors/xz/XZUtilsTest.java
index f73c64410..298bf0fef 100644
--- a/src/test/java/org/apache/commons/compress/compressors/xz/XZUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/compressors/xz/XZUtilsTest.java
@@ -24,7 +24,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class XZUtilsTest {
+class XZUtilsTest {
 
     @Test
     void testCachingIsEnabledByDefaultAndXZIsPresent() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/z/ZCompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/z/ZCompressorInputStreamTest.java
index 88307ba97..d918eefaa 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/z/ZCompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/z/ZCompressorInputStreamTest.java
@@ -40,7 +40,7 @@
  *
  * @see ZCompressorInputStream
  */
-public class ZCompressorInputStreamTest {
+class ZCompressorInputStreamTest {
 
     @Test
     void testFailsToCreateZCompressorInputStreamAndThrowsIOException() throws 
IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdCompressorInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdCompressorInputStreamTest.java
index 729d77655..f1d1bb111 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdCompressorInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdCompressorInputStreamTest.java
@@ -38,7 +38,7 @@
 import com.github.luben.zstd.NoPool;
 import com.github.luben.zstd.RecyclingBufferPool;
 
-public class ZstdCompressorInputStreamTest extends AbstractTest {
+class ZstdCompressorInputStreamTest extends AbstractTest {
 
     @Test
     void testCachingIsEnabledByDefaultAndZstdUtilsPresent() {
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdRoundtripTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdRoundtripTest.java
index cc46a6ac2..ab7d17463 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdRoundtripTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdRoundtripTest.java
@@ -47,7 +47,7 @@
 /**
  * Tests {@link ZstdCompressorOutputStream}.
  */
-public class ZstdRoundtripTest extends AbstractTest {
+class ZstdRoundtripTest extends AbstractTest {
 
     private interface OutputStreamCreator extends IOFunction<FileOutputStream, 
ZstdCompressorOutputStream> {
         // empty
diff --git 
a/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdUtilsTest.java
 
b/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdUtilsTest.java
index 946561994..089d2ba3a 100644
--- 
a/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdUtilsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/compressors/zstandard/ZstdUtilsTest.java
@@ -24,7 +24,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class ZstdUtilsTest {
+class ZstdUtilsTest {
 
     @Test
     void testMatchesSkippableFrame() {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/ArchiveTest.java 
b/src/test/java/org/apache/commons/compress/harmony/pack200/ArchiveTest.java
index ff81084f3..c80556363 100644
--- a/src/test/java/org/apache/commons/compress/harmony/pack200/ArchiveTest.java
+++ b/src/test/java/org/apache/commons/compress/harmony/pack200/ArchiveTest.java
@@ -46,7 +46,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class ArchiveTest extends AbstractTempDirTest {
+class ArchiveTest extends AbstractTempDirTest {
 
     @SuppressWarnings("resource") // Caller closes
     static Stream<Arguments> loadMultipleJars() throws URISyntaxException, 
IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/BHSDCodecTest.java 
b/src/test/java/org/apache/commons/compress/harmony/pack200/BHSDCodecTest.java
index 5842a7454..633f86cb9 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/BHSDCodecTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/BHSDCodecTest.java
@@ -35,7 +35,7 @@
 /**
  * Tests for BHSDCodec
  */
-public class BHSDCodecTest {
+class BHSDCodecTest {
 
     static Stream<Arguments> encodeDecodeRange() {
         return IntStream.range(1, 116).mapToObj(Arguments::of);
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/CodecEncodingTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/pack200/CodecEncodingTest.java
index 02090354b..1b8a4c499 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/CodecEncodingTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/CodecEncodingTest.java
@@ -34,7 +34,7 @@
 
 /**
  */
-public class CodecEncodingTest {
+class CodecEncodingTest {
 
     static Stream<Arguments> arbitraryCodec() {
         return Stream.of(Arguments.of("(1,256)", new byte[] { 0x00, (byte) 
0xFF }), Arguments.of("(5,128,2,1)", new byte[] { 0x25, (byte) 0x7F }),
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/CodecTest.java 
b/src/test/java/org/apache/commons/compress/harmony/pack200/CodecTest.java
index ca70bc709..cee15ff1d 100644
--- a/src/test/java/org/apache/commons/compress/harmony/pack200/CodecTest.java
+++ b/src/test/java/org/apache/commons/compress/harmony/pack200/CodecTest.java
@@ -38,7 +38,7 @@
 
 /**
  */
-public class CodecTest {
+class CodecTest {
 
     static Stream<Arguments> bCodings() {
         return IntStream.rangeClosed(1, 5).mapToObj(Arguments::of);
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/Compress626Test.java
 
b/src/test/java/org/apache/commons/compress/harmony/pack200/Compress626Test.java
index f17d90643..3c00cb94f 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/Compress626Test.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/Compress626Test.java
@@ -31,7 +31,7 @@
 import org.apache.commons.io.output.NullOutputStream;
 import org.junit.jupiter.api.Test;
 
-public class Compress626Test {
+class Compress626Test {
 
     @Test
     void test() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/Compress628Test.java
 
b/src/test/java/org/apache/commons/compress/harmony/pack200/Compress628Test.java
index ae42a1dbd..d8ed03fed 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/Compress628Test.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/Compress628Test.java
@@ -23,7 +23,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class Compress628Test {
+class Compress628Test {
 
     @Test
     void test() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/NewAttributeBandsTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/pack200/NewAttributeBandsTest.java
index 70ad48fb8..5f2d2c808 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/NewAttributeBandsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/NewAttributeBandsTest.java
@@ -44,7 +44,7 @@
 /**
  * Tests for pack200 support for non-predefined attributes
  */
-public class NewAttributeBandsTest {
+class NewAttributeBandsTest {
 
     private final class MockNewAttributeBands extends NewAttributeBands {
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/PackingOptionsTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/pack200/PackingOptionsTest.java
index 72bca2fb9..4b018df25 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/PackingOptionsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/PackingOptionsTest.java
@@ -46,7 +46,7 @@
 /**
  * Test different options for packing a Jar file.
  */
-public class PackingOptionsTest extends AbstractTempDirTest {
+class PackingOptionsTest extends AbstractTempDirTest {
 
     private void compareFiles(final JarFile jarFile, final JarFile jarFile2) 
throws IOException {
         final Enumeration<JarEntry> entries = jarFile.entries();
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/PopulationCodecTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/pack200/PopulationCodecTest.java
index 14b687c8b..08da7041b 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/PopulationCodecTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/PopulationCodecTest.java
@@ -31,7 +31,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class PopulationCodecTest {
+class PopulationCodecTest {
 
     static Stream<Arguments> populationCodec() {
         return Stream.of(Arguments.of(new byte[] { 4, 5, 6, 4, 2, 1, 3, 0, 7 
}, new long[] { 5, 4, 6, 7 }, Codec.BYTE1),
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/pack200/RunCodecTest.java 
b/src/test/java/org/apache/commons/compress/harmony/pack200/RunCodecTest.java
index b58573c5c..ebac17d72 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/pack200/RunCodecTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/pack200/RunCodecTest.java
@@ -34,7 +34,7 @@
 /**
  * Test for RunCodec
  */
-public class RunCodecTest {
+class RunCodecTest {
 
     static Stream<Arguments> runCodec() {
         return Stream.of(Arguments.of(0, Codec.SIGNED5, Codec.UDELTA5, "Should 
not allow a k value of 0"),
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/ArchiveTest.java 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/ArchiveTest.java
index 8b410f243..0802196d7 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/ArchiveTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/ArchiveTest.java
@@ -50,7 +50,7 @@
 /**
  * Tests for org.apache.commons.compress.harmony.unpack200.Archive, which is 
the main class for unpack200.
  */
-public class ArchiveTest extends AbstractTempDirTest {
+class ArchiveTest extends AbstractTempDirTest {
 
     @Test
     void testAlternativeConstructor() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutMapTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutMapTest.java
index 9cc939160..e0a90cb1e 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutMapTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutMapTest.java
@@ -26,7 +26,7 @@
 import org.apache.commons.compress.harmony.pack200.Pack200Exception;
 import org.junit.jupiter.api.Test;
 
-public class AttributeLayoutMapTest {
+class AttributeLayoutMapTest {
 
     @Test
     void testRepeatable() throws Pack200Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutTest.java
index 6aff5df69..1320e038d 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/AttributeLayoutTest.java
@@ -34,7 +34,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class AttributeLayoutTest {
+class AttributeLayoutTest {
 
     public class TestSegment extends Segment {
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/BandSetTest.java 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/BandSetTest.java
index 754f60d7c..eb60c729f 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/BandSetTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/BandSetTest.java
@@ -30,7 +30,7 @@
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
-public class BandSetTest {
+class BandSetTest {
 
     public class MockSegment extends Segment {
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/BcBandsTest.java 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/BcBandsTest.java
index 7e1ed753b..a43455e55 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/BcBandsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/BcBandsTest.java
@@ -46,11 +46,11 @@
  * TODO: The number 8 is used in most of the tests in this class as a low 
(non-zero) number that is not likely to indicate a multiple byte number, but 
should be
  * replaced with properly encoded byte arrays when encoding is implemented.
  */
-public class BcBandsTest extends AbstractBandsTest {
+class BcBandsTest extends AbstractBandsTest {
 
     public class MockClassBands extends ClassBands {
 
-        public MockClassBands(final Segment segment) {
+        MockClassBands(final Segment segment) {
             super(segment);
         }
 
@@ -152,7 +152,7 @@ public class MockCpBands extends CpBands {
         private final CPClass cpClass = new CPClass(cpUTF8, -1);
         private final CPNameAndType descriptor = new CPNameAndType(new 
CPUTF8("Hello"), new CPUTF8("(a, b, c)"), -1);
 
-        public MockCpBands(final Segment segment) {
+        MockCpBands(final Segment segment) {
             super(segment);
         }
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/CPUTF8Test.java 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/CPUTF8Test.java
index de2dd9558..4a2014f1f 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/CPUTF8Test.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/CPUTF8Test.java
@@ -23,7 +23,7 @@
 import org.apache.commons.compress.harmony.unpack200.bytecode.CPUTF8;
 import org.junit.jupiter.api.Test;
 
-public class CPUTF8Test {
+class CPUTF8Test {
 
     @Test
     void testEquality() {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/ClassBandsTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/ClassBandsTest.java
index 840b340dc..882605ad6 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/ClassBandsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/ClassBandsTest.java
@@ -31,11 +31,11 @@
 
 /**
  */
-public class ClassBandsTest extends AbstractBandsTest {
+class ClassBandsTest extends AbstractBandsTest {
 
     public class MockCpBands extends CpBands {
 
-        public MockCpBands(final Segment segment) {
+        MockCpBands(final Segment segment) {
             super(segment);
         }
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/CodeAttributeTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/CodeAttributeTest.java
index add229b56..c2714f245 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/CodeAttributeTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/CodeAttributeTest.java
@@ -37,11 +37,11 @@
 /**
  * Tests for CodeAttribute
  */
-public class CodeAttributeTest {
+class CodeAttributeTest {
 
     public class MockCodeAttribute extends CodeAttribute {
 
-        public MockCodeAttribute(final int maxStack, final int maxLocals, 
final byte[] codePacked, final Segment segment, final OperandManager 
operandManager,
+        MockCodeAttribute(final int maxStack, final int maxLocals, final 
byte[] codePacked, final Segment segment, final OperandManager operandManager,
                 final List<ExceptionTableEntry> exceptionTable) throws 
Pack200Exception {
             super(maxStack, maxLocals, codePacked, segment, operandManager, 
exceptionTable);
         }
@@ -54,7 +54,7 @@ public int getLength() {
 
     public class MockCpBands extends CpBands {
 
-        public MockCpBands(final Segment segment) {
+        MockCpBands(final Segment segment) {
             super(segment);
         }
 
@@ -77,7 +77,7 @@ public CPString cpStringValue(final int index) {
 
     public class MockOperandManager extends OperandManager {
 
-        public MockOperandManager() {
+        MockOperandManager() {
             super(new int[] {}, // bcCaseCount
                     new int[] {}, // bcCaseValues
                     new int[] {}, // bcByte
@@ -112,7 +112,7 @@ public SegmentConstantPool getConstantPool() {
 
     public class MockSegmentConstantPool extends SegmentConstantPool {
 
-        public MockSegmentConstantPool(final CpBands bands) {
+        MockSegmentConstantPool(final CpBands bands) {
             super(bands);
         }
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/Codec_decodeInts_OutOfMemoryErrorTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/Codec_decodeInts_OutOfMemoryErrorTest.java
index a5648097e..cdab7e663 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/Codec_decodeInts_OutOfMemoryErrorTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/Codec_decodeInts_OutOfMemoryErrorTest.java
@@ -68,7 +68,7 @@
  * </pre>
  */
 @Disabled
-public class Codec_decodeInts_OutOfMemoryErrorTest {
+class Codec_decodeInts_OutOfMemoryErrorTest {
 
     // @formatter:off
     private static final String BASE64_BYTES =
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/ICTupleTest.java 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/ICTupleTest.java
index a06ca6092..17489c0ae 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/ICTupleTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/ICTupleTest.java
@@ -27,7 +27,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class ICTupleTest {
+class ICTupleTest {
 
     static Stream<Arguments> explicit() {
         return Stream.of(Arguments.of("Foo$$2$Local", null, "$2$Local", 
"$2$Local", "Foo$$2"),
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/NewAttributeBandsTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/NewAttributeBandsTest.java
index 6e08da8b1..1e9deef33 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/NewAttributeBandsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/NewAttributeBandsTest.java
@@ -40,7 +40,7 @@
 /**
  * Tests for unpack200 support for non-predefined attributes
  */
-public class NewAttributeBandsTest extends AbstractBandsTest {
+class NewAttributeBandsTest extends AbstractBandsTest {
 
     private final class MockNewAttributeBands extends NewAttributeBands {
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolArrayCacheTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolArrayCacheTest.java
index 13e943b71..70aded22d 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolArrayCacheTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolArrayCacheTest.java
@@ -25,7 +25,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class SegmentConstantPoolArrayCacheTest {
+class SegmentConstantPoolArrayCacheTest {
 
     @Test
     void testMultipleArrayMultipleHit() {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolTest.java
index d3d4fa442..f8b15e932 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentConstantPoolTest.java
@@ -27,11 +27,11 @@
 /**
  * Tests for org.apache.commons.compress.harmony.unpack200.SegmentConstantPool.
  */
-public class SegmentConstantPoolTest {
+class SegmentConstantPoolTest {
 
     public class MockSegmentConstantPool extends SegmentConstantPool {
 
-        public MockSegmentConstantPool() {
+        MockSegmentConstantPool() {
             super(new CpBands(new Segment()));
         }
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentOptionsTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentOptionsTest.java
index 66692226a..46a684b3f 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentOptionsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentOptionsTest.java
@@ -26,7 +26,7 @@
 
 /**
  */
-public class SegmentOptionsTest {
+class SegmentOptionsTest {
 
     @ParameterizedTest
     @ValueSource(ints = { 3, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 
25, 26, 27, 28, 29, 30, 31 })
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentTest.java 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentTest.java
index 0e600475c..abf235d3d 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentTest.java
@@ -43,7 +43,7 @@
 /**
  * Tests for org.apache.commons.compress.harmony.unpack200.Segment.
  */
-public class SegmentTest extends AbstractTempDirTest {
+class SegmentTest extends AbstractTempDirTest {
 
     @Test
     void testHelloWorld() throws Exception {
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentUtilsTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentUtilsTest.java
index 0b19b1713..4d7ae36c1 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentUtilsTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/SegmentUtilsTest.java
@@ -27,7 +27,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class SegmentUtilsTest {
+class SegmentUtilsTest {
 
     private static final class MultipleMatches implements IMatcher {
 
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ByteCodeTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ByteCodeTest.java
index b3edfb272..d031ed4be 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ByteCodeTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ByteCodeTest.java
@@ -26,7 +26,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class ByteCodeTest {
+class ByteCodeTest {
 
     static Stream<Arguments> byteCode() {
         return Stream.of(Arguments.of(0, "nop"), Arguments.of(-79, "return"), 
Arguments.of(177, "return"));
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ClassFileEntryTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ClassFileEntryTest.java
index dc036f9dd..f270645b9 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ClassFileEntryTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ClassFileEntryTest.java
@@ -25,7 +25,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class ClassFileEntryTest {
+class ClassFileEntryTest {
 
     private void checkEquality(final Object equal1, final Object equal2, final 
String toString, final Object unequal) {
         assertEquals(equal1, equal2);
diff --git 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ConstantPoolTest.java
 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ConstantPoolTest.java
index f9244c557..393ef1962 100644
--- 
a/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ConstantPoolTest.java
+++ 
b/src/test/java/org/apache/commons/compress/harmony/unpack200/bytecode/ConstantPoolTest.java
@@ -26,7 +26,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-public class ConstantPoolTest {
+class ConstantPoolTest {
 
     private ClassConstantPool pool;
 
diff --git 
a/src/test/java/org/apache/commons/compress/java/util/jar/Pack200Test.java 
b/src/test/java/org/apache/commons/compress/java/util/jar/Pack200Test.java
index a3047391a..681ecc7da 100644
--- a/src/test/java/org/apache/commons/compress/java/util/jar/Pack200Test.java
+++ b/src/test/java/org/apache/commons/compress/java/util/jar/Pack200Test.java
@@ -22,7 +22,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class Pack200Test {
+class Pack200Test {
 
     @Test
     void testPacker() {
diff --git a/src/test/java/org/apache/commons/compress/osgi/OsgiITest.java 
b/src/test/java/org/apache/commons/compress/osgi/OsgiITest.java
index c39998080..f9ae1a561 100644
--- a/src/test/java/org/apache/commons/compress/osgi/OsgiITest.java
+++ b/src/test/java/org/apache/commons/compress/osgi/OsgiITest.java
@@ -24,7 +24,7 @@
 import org.ops4j.pax.exam.junit.PaxExam;
 
 @RunWith(PaxExam.class)
-public class OsgiITest extends AbstractOsgiITest {
+class OsgiITest extends AbstractOsgiITest {
 
     @Override
     @Configuration
diff --git 
a/src/test/java/org/apache/commons/compress/osgi/OsgiWithoutOptionalDepsITest.java
 
b/src/test/java/org/apache/commons/compress/osgi/OsgiWithoutOptionalDepsITest.java
index c83c2052e..ae6d8837e 100644
--- 
a/src/test/java/org/apache/commons/compress/osgi/OsgiWithoutOptionalDepsITest.java
+++ 
b/src/test/java/org/apache/commons/compress/osgi/OsgiWithoutOptionalDepsITest.java
@@ -24,7 +24,7 @@
 import org.ops4j.pax.exam.junit.PaxExam;
 
 @RunWith(PaxExam.class)
-public class OsgiWithoutOptionalDepsITest  extends AbstractOsgiITest {
+class OsgiWithoutOptionalDepsITest  extends AbstractOsgiITest {
 
     @Configuration
     @Override
diff --git 
a/src/test/java/org/apache/commons/compress/utils/BitInputStreamTest.java 
b/src/test/java/org/apache/commons/compress/utils/BitInputStreamTest.java
index 535eb52d0..60eac230c 100644
--- a/src/test/java/org/apache/commons/compress/utils/BitInputStreamTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/BitInputStreamTest.java
@@ -27,7 +27,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class BitInputStreamTest {
+class BitInputStreamTest {
 
     private ByteArrayInputStream getStream() {
         return new ByteArrayInputStream(new byte[] { (byte) 0xF8, // 11111000
diff --git 
a/src/test/java/org/apache/commons/compress/utils/BoundedSeekableByteChannelInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/utils/BoundedSeekableByteChannelInputStreamTest.java
index 0ed96451d..5b446dfd5 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/BoundedSeekableByteChannelInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/BoundedSeekableByteChannelInputStreamTest.java
@@ -26,7 +26,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class BoundedSeekableByteChannelInputStreamTest {
+class BoundedSeekableByteChannelInputStreamTest {
 
     @Test
     void testCheckRestrictedRead() throws IOException {
diff --git a/src/test/java/org/apache/commons/compress/utils/ByteUtilsTest.java 
b/src/test/java/org/apache/commons/compress/utils/ByteUtilsTest.java
index 87f974741..9ad1bbd66 100644
--- a/src/test/java/org/apache/commons/compress/utils/ByteUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/ByteUtilsTest.java
@@ -39,7 +39,7 @@
 import org.apache.commons.compress.utils.ByteUtils.OutputStreamByteConsumer;
 import org.junit.jupiter.api.Test;
 
-public class ByteUtilsTest {
+class ByteUtilsTest {
 
     @Test
     void testFromLittleEndianFromArray() {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/CharsetNamesTest.java 
b/src/test/java/org/apache/commons/compress/utils/CharsetNamesTest.java
index 4e06a71fc..368f0a0e6 100644
--- a/src/test/java/org/apache/commons/compress/utils/CharsetNamesTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/CharsetNamesTest.java
@@ -28,7 +28,7 @@
 /**
  * Tests {@link CharsetNames}.
  */
-public class CharsetNamesTest {
+class CharsetNamesTest {
 
     @Test
     void testConstants() {
diff --git a/src/test/java/org/apache/commons/compress/utils/CharsetsTest.java 
b/src/test/java/org/apache/commons/compress/utils/CharsetsTest.java
index b1dbcb141..04e1dee42 100644
--- a/src/test/java/org/apache/commons/compress/utils/CharsetsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/CharsetsTest.java
@@ -29,7 +29,7 @@
 /**
  * Sanity checks for {@link Charsets}.
  */
-public class CharsetsTest {
+class CharsetsTest {
 
     @Test
     void testToCharset() {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java
index e934909c4..3f31eda16 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/ChecksumCalculatingInputStreamTest.java
@@ -36,7 +36,7 @@
  *
  * @see ChecksumCalculatingInputStream
  */
-public class ChecksumCalculatingInputStreamTest {
+class ChecksumCalculatingInputStreamTest {
 
     @Test
     void 
testClassInstantiationWithParameterBeingNullThrowsNullPointerExceptionOne() {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/ChecksumVerifyingInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/utils/ChecksumVerifyingInputStreamTest.java
index 0db3ecce4..00281bdc2 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/ChecksumVerifyingInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/ChecksumVerifyingInputStreamTest.java
@@ -34,7 +34,7 @@
  *
  * @see ChecksumVerifyingInputStream
  */
-public class ChecksumVerifyingInputStreamTest {
+class ChecksumVerifyingInputStreamTest {
 
     @Test
     void testReadTakingByteArrayThrowsIOException() throws IOException {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/CountingStreamTest.java 
b/src/test/java/org/apache/commons/compress/utils/CountingStreamTest.java
index e8de203b6..244d7339a 100644
--- a/src/test/java/org/apache/commons/compress/utils/CountingStreamTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/CountingStreamTest.java
@@ -26,7 +26,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class CountingStreamTest {
+class CountingStreamTest {
 
     @Test
     void testInput() throws Exception {
diff --git a/src/test/java/org/apache/commons/compress/utils/ExactMathTest.java 
b/src/test/java/org/apache/commons/compress/utils/ExactMathTest.java
index bf73feb1c..270f08b3a 100644
--- a/src/test/java/org/apache/commons/compress/utils/ExactMathTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/ExactMathTest.java
@@ -22,7 +22,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class ExactMathTest {
+class ExactMathTest {
 
     @Test
     void testOverflow() {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/FileNameUtilsTest.java 
b/src/test/java/org/apache/commons/compress/utils/FileNameUtilsTest.java
index 1737089c3..91097e775 100644
--- a/src/test/java/org/apache/commons/compress/utils/FileNameUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/FileNameUtilsTest.java
@@ -29,7 +29,7 @@
 import org.apache.commons.lang3.SystemUtils;
 import org.junit.jupiter.api.Test;
 
-public class FileNameUtilsTest {
+class FileNameUtilsTest {
 
     @Test
     void testGetBaseNamePathBaseCases() {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/FixedLengthBlockOutputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/utils/FixedLengthBlockOutputStreamTest.java
index d19a66027..f96adaa50 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/FixedLengthBlockOutputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/FixedLengthBlockOutputStreamTest.java
@@ -39,7 +39,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class FixedLengthBlockOutputStreamTest {
+class FixedLengthBlockOutputStreamTest {
 
     private static final class MockOutputStream extends OutputStream {
 
diff --git a/src/test/java/org/apache/commons/compress/utils/IOUtilsTest.java 
b/src/test/java/org/apache/commons/compress/utils/IOUtilsTest.java
index e2adedc09..38128c22d 100644
--- a/src/test/java/org/apache/commons/compress/utils/IOUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/IOUtilsTest.java
@@ -39,7 +39,7 @@
 import org.apache.commons.io.output.NullOutputStream;
 import org.junit.jupiter.api.Test;
 
-public class IOUtilsTest {
+class IOUtilsTest {
 
     private interface StreamWrapper {
         InputStream wrap(InputStream toWrap);
diff --git 
a/src/test/java/org/apache/commons/compress/utils/MultiReadOnlySeekableByteChannelTest.java
 
b/src/test/java/org/apache/commons/compress/utils/MultiReadOnlySeekableByteChannelTest.java
index 18299d057..a63f5de61 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/MultiReadOnlySeekableByteChannelTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/MultiReadOnlySeekableByteChannelTest.java
@@ -48,7 +48,7 @@
  * by Tim Underwood.
  */
 //@formatter:on
-public class MultiReadOnlySeekableByteChannelTest {
+class MultiReadOnlySeekableByteChannelTest {
 
     private static final class ThrowingSeekableByteChannel implements 
SeekableByteChannel {
         private boolean closed;
diff --git a/src/test/java/org/apache/commons/compress/utils/OsgiUtilsTest.java 
b/src/test/java/org/apache/commons/compress/utils/OsgiUtilsTest.java
index 9e3bb603a..a8609fcf9 100644
--- a/src/test/java/org/apache/commons/compress/utils/OsgiUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/OsgiUtilsTest.java
@@ -23,7 +23,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class OsgiUtilsTest {
+class OsgiUtilsTest {
 
     @Test
     void testDetectsItIsNotRunningInsideOsgiEnv() {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/ParsingUtilsTest.java 
b/src/test/java/org/apache/commons/compress/utils/ParsingUtilsTest.java
index af7298270..093a6ac4c 100644
--- a/src/test/java/org/apache/commons/compress/utils/ParsingUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/ParsingUtilsTest.java
@@ -32,7 +32,7 @@
  *
  * @see ParsingUtils
  */
-public class ParsingUtilsTest {
+class ParsingUtilsTest {
 
     @ParameterizedTest
     @ValueSource(strings = {Integer.MIN_VALUE + "1", "x.x", "9e999", "1.1", 
"one", Integer.MAX_VALUE + "1"})
diff --git 
a/src/test/java/org/apache/commons/compress/utils/SeekableInMemoryByteChannelTest.java
 
b/src/test/java/org/apache/commons/compress/utils/SeekableInMemoryByteChannelTest.java
index a806c4a4f..f3016fcaa 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/SeekableInMemoryByteChannelTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/SeekableInMemoryByteChannelTest.java
@@ -33,7 +33,7 @@
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
-public class SeekableInMemoryByteChannelTest {
+class SeekableInMemoryByteChannelTest {
 
     private final byte[] testData = "Some data".getBytes(UTF_8);
 
diff --git 
a/src/test/java/org/apache/commons/compress/utils/ServiceLoaderIteratorTest.java
 
b/src/test/java/org/apache/commons/compress/utils/ServiceLoaderIteratorTest.java
index 3f17c0146..c2b3074f4 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/ServiceLoaderIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/ServiceLoaderIteratorTest.java
@@ -30,7 +30,7 @@
  *
  * @see ServiceLoaderIterator
  */
-public class ServiceLoaderIteratorTest {
+class ServiceLoaderIteratorTest {
 
     @Test
     void testHasNextReturnsFalse() {
diff --git a/src/test/java/org/apache/commons/compress/utils/SetsTest.java 
b/src/test/java/org/apache/commons/compress/utils/SetsTest.java
index 2314b6156..2c604b5cf 100644
--- a/src/test/java/org/apache/commons/compress/utils/SetsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/SetsTest.java
@@ -25,7 +25,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class SetsTest {
+class SetsTest {
 
     @Test
     void testNewHashSet() {
diff --git 
a/src/test/java/org/apache/commons/compress/utils/SkipShieldingInputStreamTest.java
 
b/src/test/java/org/apache/commons/compress/utils/SkipShieldingInputStreamTest.java
index c970ce69f..a22d58fcc 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/SkipShieldingInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/SkipShieldingInputStreamTest.java
@@ -27,7 +27,7 @@
 
 import org.junit.jupiter.api.Test;
 
-public class SkipShieldingInputStreamTest {
+class SkipShieldingInputStreamTest {
 
     @Test
     void testSkipDelegatesToRead() throws IOException {
diff --git a/src/test/java/org/apache/commons/compress/utils/TimeUtilsTest.java 
b/src/test/java/org/apache/commons/compress/utils/TimeUtilsTest.java
index 74d0c93e6..3867c6ef5 100644
--- a/src/test/java/org/apache/commons/compress/utils/TimeUtilsTest.java
+++ b/src/test/java/org/apache/commons/compress/utils/TimeUtilsTest.java
@@ -41,7 +41,7 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class TimeUtilsTest {
+class TimeUtilsTest {
 
     public static Stream<Arguments> dateToNtfsProvider() {
         return Stream.of(Arguments.of("1601-01-01T00:00:00.000Z", 0), 
Arguments.of("1601-01-01T00:00:00.000Z", 1), 
Arguments.of("1600-12-31T23:59:59.999Z", -1),
diff --git 
a/src/test/java/org/apache/commons/compress/utils/ZipSplitReadOnlySeekableByteChannelTest.java
 
b/src/test/java/org/apache/commons/compress/utils/ZipSplitReadOnlySeekableByteChannelTest.java
index 947095b7b..1a1a7b33a 100644
--- 
a/src/test/java/org/apache/commons/compress/utils/ZipSplitReadOnlySeekableByteChannelTest.java
+++ 
b/src/test/java/org/apache/commons/compress/utils/ZipSplitReadOnlySeekableByteChannelTest.java
@@ -39,7 +39,7 @@
 import 
org.apache.commons.compress.archivers.zip.ZipSplitReadOnlySeekableByteChannel;
 import org.junit.jupiter.api.Test;
 
-public class ZipSplitReadOnlySeekableByteChannelTest {
+class ZipSplitReadOnlySeekableByteChannelTest {
 
     private List<SeekableByteChannel> getSplitZipChannels() throws IOException 
{
         final List<SeekableByteChannel> channels = new ArrayList<>();