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-crypto.git


The following commit(s) were added to refs/heads/master by this push:
     new 4636ff34 Use JUnit 5 convention for test method visibility
4636ff34 is described below

commit 4636ff3442d1b72c2024400d42d31fece059227a
Author: Gary D. Gregory <garydgreg...@gmail.com>
AuthorDate: Sat Jun 7 14:38:19 2025 -0400

    Use JUnit 5 convention for test method visibility
---
 .../java/org/apache/commons/crypto/CryptoTest.java |  8 +++----
 .../commons/crypto/NativeCodeLoaderTest.java       | 10 ++++-----
 .../java/org/apache/commons/crypto/OsInfoTest.java |  2 +-
 .../commons/crypto/cipher/AbstractCipherTest.java  | 22 +++++++++---------
 .../crypto/cipher/CryptoCipherFactoryTest.java     | 10 ++++-----
 .../commons/crypto/cipher/CryptoCipherTest.java    |  4 ++--
 .../commons/crypto/cipher/GcmCipherTest.java       | 16 ++++++-------
 .../commons/crypto/cipher/OpenSslCipherTest.java   | 16 ++++++-------
 .../crypto/cipher/OpenSslCommonModeTest.java       |  2 +-
 .../apache/commons/crypto/jna/OpenSslJnaTest.java  |  2 +-
 .../commons/crypto/jna/OpenSslNativeJnaTest.java   |  2 +-
 .../jna/PositionedCryptoInputStreamJnaTest.java    |  2 +-
 .../commons/crypto/random/AbstractRandomTest.java  |  4 ++--
 .../crypto/random/CryptoRandomFactoryTest.java     | 26 +++++++++++-----------
 .../commons/crypto/random/OsCryptoRandomTest.java  |  2 +-
 .../commons/crypto/stream/CtrCryptoStreamTest.java |  2 +-
 .../stream/PositionedCryptoInputStreamTest.java    |  2 +-
 .../crypto/stream/input/ChannelInputTest.java      |  2 +-
 .../crypto/stream/output/StreamOutputTest.java     |  2 +-
 .../org/apache/commons/crypto/utils/EnumTest.java  |  4 ++--
 .../org/apache/commons/crypto/utils/UtilsTest.java |  6 ++---
 21 files changed, 73 insertions(+), 73 deletions(-)

diff --git a/src/test/java/org/apache/commons/crypto/CryptoTest.java 
b/src/test/java/org/apache/commons/crypto/CryptoTest.java
index 92fda87e..812b6dab 100644
--- a/src/test/java/org/apache/commons/crypto/CryptoTest.java
+++ b/src/test/java/org/apache/commons/crypto/CryptoTest.java
@@ -31,7 +31,7 @@ public class CryptoTest {
      * This test may fail unless the code was built by Maven, as it relies on 
the VERSION file being set up correctly
      */
     @Test
-    public void testGetComponentName() {
+    void testGetComponentName() {
         final String version = Crypto.getComponentName();
         assertNotNull("Should not be null", version);
         assertTrue(version.matches("^Apache Commons Crypto.*"), version);
@@ -41,14 +41,14 @@ public void testGetComponentName() {
      * This test may fail unless the code was built by Maven, as it relies on 
the VERSION file being set up correctly.
      */
     @Test
-    public void testGetComponentVersion() {
+    void testGetComponentVersion() {
         final String version = Crypto.getComponentVersion();
         assertNotNull("Should not be null", version);
         assertTrue(version.matches("^\\d+\\.\\d+.*"), version);
     }
 
     @Test
-    public void testLoadingError() throws Throwable {
+    void testLoadingError() throws Throwable {
         final Throwable loadingError = Crypto.getLoadingError();
         if (loadingError != null) {
             throw loadingError;
@@ -57,7 +57,7 @@ public void testLoadingError() throws Throwable {
     }
 
     @Test
-    public void testMain() throws Throwable {
+    void testMain() throws Throwable {
         // Check that Crypto.main will actually run tests
         assertTrue(Crypto.isNativeCodeLoaded(), "Native code loaded OK");
         Crypto.main(new String[] { }); // show the JNI library details
diff --git a/src/test/java/org/apache/commons/crypto/NativeCodeLoaderTest.java 
b/src/test/java/org/apache/commons/crypto/NativeCodeLoaderTest.java
index 17cb27de..ff2abca2 100644
--- a/src/test/java/org/apache/commons/crypto/NativeCodeLoaderTest.java
+++ b/src/test/java/org/apache/commons/crypto/NativeCodeLoaderTest.java
@@ -33,7 +33,7 @@
 public class NativeCodeLoaderTest {
 
     @Test
-    public void test() {
+    void test() {
         assertTrue(NativeCodeLoader.isNativeCodeLoaded(), "Native (JNI) code 
loaded successfully");
     }
 
@@ -48,20 +48,20 @@ public void test() {
     // Note that this appears during a subsequent test, and does not
     // happen every time.
     // At this point it is not known where the native stream is written.
-    public void testCanLoadIfPresent() {
+    void testCanLoadIfPresent() {
         assumeTrue(NativeCodeLoader.isNativeCodeLoaded());
         // This will try to reload the library, so should work
         assertNull(NativeCodeLoader.loadLibrary());
     }
 
     @Test
-    public void testNativeNotPresent() {
+    void testNativeNotPresent() {
         assumeTrue(!NativeCodeLoader.isNativeCodeLoaded());
         assertNotNull(NativeCodeLoader.getLoadingError());
     }
 
     @Test
-    public void testNativePresent() {
+    void testNativePresent() {
         assumeTrue(NativeCodeLoader.isNativeCodeLoaded());
         assertNull(NativeCodeLoader.getLoadingError());
     }
@@ -71,7 +71,7 @@ public void testNativePresent() {
     // It causes problems because the system properties are temporarily 
changed.
     // However, properties are only fetched once, thus the test either 
corrupts the settings
     // or does not work, depending on the order of tests.
-    public void testUnSuccessfulLoad() throws Exception {
+    void testUnSuccessfulLoad() throws Exception {
         final String nameKey = System.getProperty(Crypto.LIB_NAME_KEY);
         final String pathKey = System.getProperty(Crypto.LIB_PATH_KEY);
         // An empty file should cause UnsatisfiedLinkError
diff --git a/src/test/java/org/apache/commons/crypto/OsInfoTest.java 
b/src/test/java/org/apache/commons/crypto/OsInfoTest.java
index 23b71359..4a5da730 100644
--- a/src/test/java/org/apache/commons/crypto/OsInfoTest.java
+++ b/src/test/java/org/apache/commons/crypto/OsInfoTest.java
@@ -25,7 +25,7 @@ public class OsInfoTest {
 
     private static final String EXPECTED_PATH_PROPERTY = 
"OsInfoTest.expectedPath";
     @Test
-    public void testMain() {
+    void testMain() {
         OsInfo.main(new String[0]);
         OsInfo.main(new String[] { "--os" });
         OsInfo.main(new String[] { "--arch" });
diff --git 
a/src/test/java/org/apache/commons/crypto/cipher/AbstractCipherTest.java 
b/src/test/java/org/apache/commons/crypto/cipher/AbstractCipherTest.java
index a45bda9a..0f84ebb8 100644
--- a/src/test/java/org/apache/commons/crypto/cipher/AbstractCipherTest.java
+++ b/src/test/java/org/apache/commons/crypto/cipher/AbstractCipherTest.java
@@ -208,7 +208,7 @@ public void setup() {
        }
 
        @Test
-       public void testCloseTestAfterInit() throws Exception {
+       void testCloseTestAfterInit() throws Exception {
                // This test deliberately does not use try with resources in 
order to control
                // the sequence of operations exactly
         try (final CryptoCipher enc = getCipher(transformations[0])) {
@@ -217,7 +217,7 @@ public void testCloseTestAfterInit() throws Exception {
        }
 
        @Test
-       public void testCloseTestNoInit() throws Exception {
+       void testCloseTestNoInit() throws Exception {
                // This test deliberately does not use try with resources in 
order to control
                // the sequence of operations exactly
                try (final CryptoCipher enc = getCipher(transformations[0])) {
@@ -226,7 +226,7 @@ public void testCloseTestNoInit() throws Exception {
        }
 
        @Test
-       public void testCloseTestRepeat() throws Exception {
+       void testCloseTestRepeat() throws Exception {
                // This test deliberately does not use try with resources in 
order to control
                // the sequence of operations exactly
         try (final CryptoCipher enc = getCipher(transformations[0])) {
@@ -236,7 +236,7 @@ public void testCloseTestRepeat() throws Exception {
        }
 
        @Test
-       public void testCryptoTest() throws Exception {
+       void testCryptoTest() throws Exception {
                for (final String tran : transformations) {
                        /** Uses the small data set in {@link TestData} */
                        cipherTests = TestData.getTestData(tran);
@@ -265,7 +265,7 @@ public void testCryptoTest() throws Exception {
        }
 
        @Test
-       public void testInvalidIV() throws Exception {
+       void testInvalidIV() throws Exception {
                for (final String transform : transformations) {
                        try (final CryptoCipher cipher = getCipher(transform)) {
                                assertNotNull(cipher);
@@ -277,7 +277,7 @@ public void testInvalidIV() throws Exception {
        }
 
        @Test
-       public void testInvalidIVClass() throws Exception {
+       void testInvalidIVClass() throws Exception {
                for (final String transform : transformations) {
                        try (final CryptoCipher cipher = getCipher(transform)) {
                                assertNotNull(cipher);
@@ -287,7 +287,7 @@ public void testInvalidIVClass() throws Exception {
        }
 
        @Test
-       public void testInvalidKey() throws Exception {
+       void testInvalidKey() throws Exception {
                for (final String transform : transformations) {
                        try (final CryptoCipher cipher = getCipher(transform)) {
                                assertNotNull(cipher);
@@ -300,19 +300,19 @@ public void testInvalidKey() throws Exception {
        }
 
        @Test
-       public void testInvalidTransform() {
+       void testInvalidTransform() {
                assertThrows(IllegalArgumentException.class,
                                () -> 
getCipher("AES/CBR/NoPadding/garbage/garbage").close());
        }
 
        @Test
-       public void testNullTransform() {
+       void testNullTransform() {
                assertThrows(IllegalArgumentException.class,
                                () -> getCipher(null).close());
        }
 
        @Test
-    public void testReInitAfterClose() throws Exception {
+    void testReInitAfterClose() throws Exception {
         // This test deliberately does not use try with resources in order to 
control
         // the sequence of operations exactly
         try (final CryptoCipher enc = getCipher(transformations[0])) {
@@ -323,7 +323,7 @@ public void testReInitAfterClose() throws Exception {
     }
 
        @Test
-       public void testReInitTest() throws Exception {
+       void testReInitTest() throws Exception {
                // This test deliberately does not use try with resources in 
order to control
                // the sequence of operations exactly
         try (final CryptoCipher enc = getCipher(transformations[0])) {
diff --git 
a/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherFactoryTest.java 
b/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherFactoryTest.java
index 31cf76fc..2a232489 100644
--- 
a/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherFactoryTest.java
+++ 
b/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherFactoryTest.java
@@ -30,7 +30,7 @@
 public class CryptoCipherFactoryTest {
 
     @Test
-    public void testDefaultCipher() throws GeneralSecurityException, 
IOException {
+    void testDefaultCipher() throws GeneralSecurityException, IOException {
         try (CryptoCipher defaultCipher = 
CryptoCipherFactory.getCryptoCipher(AES.CTR_NO_PADDING)) {
             final String name = defaultCipher.getClass().getName();
             if (OpenSsl.getLoadingFailureReason() == null) {
@@ -42,7 +42,7 @@ public void testDefaultCipher() throws 
GeneralSecurityException, IOException {
     }
 
     @Test
-    public void testEmptyCipher() throws GeneralSecurityException, IOException 
{
+    void testEmptyCipher() throws GeneralSecurityException, IOException {
         final Properties properties = new Properties();
         properties.setProperty(CryptoCipherFactory.CLASSES_KEY, ""); // TODO 
should this really mean use the default?
         try (CryptoCipher defaultCipher = 
CryptoCipherFactory.getCryptoCipher(AES.CBC_NO_PADDING, properties)) {
@@ -56,7 +56,7 @@ public void testEmptyCipher() throws 
GeneralSecurityException, IOException {
     }
 
     @Test
-    public void testInvalidCipher() {
+    void testInvalidCipher() {
         final Properties properties = new Properties();
         properties.setProperty(CryptoCipherFactory.CLASSES_KEY, 
"InvalidCipherName");
         assertThrows(GeneralSecurityException.class, () -> 
CryptoCipherFactory.getCryptoCipher(AES.CBC_NO_PADDING, properties));
@@ -64,14 +64,14 @@ public void testInvalidCipher() {
     }
 
     @Test
-    public void testInvalidTransformation() {
+    void testInvalidTransformation() {
         final Properties properties = new Properties();
         assertThrows(GeneralSecurityException.class, () -> 
CryptoCipherFactory.getCryptoCipher("AES/Invalid/NoPadding", properties));
 
     }
 
     @Test
-    public void testNoCipher() {
+    void testNoCipher() {
         final Properties properties = new Properties();
         // An empty string currently means use the default
         // However the splitter drops empty fields
diff --git 
a/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherTest.java 
b/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherTest.java
index 20b641ba..8d53f8ed 100644
--- a/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherTest.java
+++ b/src/test/java/org/apache/commons/crypto/cipher/CryptoCipherTest.java
@@ -30,12 +30,12 @@
 public class CryptoCipherTest {
 
     @Test
-    public void testUpdateAADByteArray() {
+    void testUpdateAADByteArray() {
         assertThrows(UnsupportedOperationException.class, () -> new 
DefaultCryptoCipher().updateAAD((byte[]) null));
     }
 
     @Test
-    public void testUpdateAADByteBuffer() {
+    void testUpdateAADByteBuffer() {
         assertThrows(UnsupportedOperationException.class, () -> new 
DefaultCryptoCipher().updateAAD((ByteBuffer) null));
     }
 }
diff --git a/src/test/java/org/apache/commons/crypto/cipher/GcmCipherTest.java 
b/src/test/java/org/apache/commons/crypto/cipher/GcmCipherTest.java
index 3c28f5f3..1ad0f03d 100644
--- a/src/test/java/org/apache/commons/crypto/cipher/GcmCipherTest.java
+++ b/src/test/java/org/apache/commons/crypto/cipher/GcmCipherTest.java
@@ -320,7 +320,7 @@ private void testGcmEncryption(final String kHex, final 
String pHex, final Strin
      * @throws Exception Test failure
      */
     @Test
-    public void testGcmNistCase2() throws Exception {
+    void testGcmNistCase2() throws Exception {
         // key length:          16 bytes
         // plain text length:   16 bytes
         // iv length:           12 bytes
@@ -342,7 +342,7 @@ public void testGcmNistCase2() throws Exception {
     }
 
     @Test
-    public void testGcmNistCase4() throws Exception {
+    void testGcmNistCase4() throws Exception {
         // key length:          16 bytes
         // plain text length:   60 bytes
         // iv length:           12 bytes
@@ -371,7 +371,7 @@ public void testGcmNistCase4() throws Exception {
     }
 
     @Test
-    public void testGcmNistCase5() throws Exception {
+    void testGcmNistCase5() throws Exception {
         // key length:          16 bytes
         // plain text length:   60 bytes
         // iv length:           8 bytes
@@ -404,7 +404,7 @@ public void testGcmNistCase5() throws Exception {
     }
 
     @Test
-    public void testGcmNistCase6() throws Exception {
+    void testGcmNistCase6() throws Exception {
         // key length:          16 bytes
         // plain text length:   60 bytes
         // iv length:           60 bytes
@@ -440,7 +440,7 @@ public void testGcmNistCase6() throws Exception {
     }
 
     @Test
-    public void testGcmNistCases() throws Exception {
+    void testGcmNistCases() throws Exception {
         for(int i = 0; i < kHex.length; i++) {
             testGcmEncryption(kHex[i], pHex[i], ivHex[i], aadHex[i], cHex[i], 
tHex[i]);
             testGcmDecryption(kHex[i], pHex[i], ivHex[i], aadHex[i], cHex[i], 
tHex[i]);
@@ -482,7 +482,7 @@ private void testGcmReturnDataAfterTagVerified(final String 
kHex, final String p
     }
 
     @Test
-    public void testGcmTamperedData() throws Exception {
+    void testGcmTamperedData() throws Exception {
 
         final Random r = new Random();
         final int textLength = r.nextInt(1024*1024);
@@ -529,7 +529,7 @@ public void testGcmTamperedData() throws Exception {
     }
 
     @Test
-    public void testGMac() throws Exception {
+    void testGMac() throws Exception {
         // for GMAC,  aad is the input data,
         // tag is the digest message
 
@@ -582,7 +582,7 @@ public void testGMac() throws Exception {
 
     @Test
             //(expected = AEADBadTagException.class)
-    public void testGMacTamperedData() throws Exception {
+    void testGMacTamperedData() throws Exception {
         final Random r = new Random();
         final byte[] keyBytes = new byte[32];
         final byte[] input = {};
diff --git 
a/src/test/java/org/apache/commons/crypto/cipher/OpenSslCipherTest.java 
b/src/test/java/org/apache/commons/crypto/cipher/OpenSslCipherTest.java
index 07a12ad4..fb5f416d 100644
--- a/src/test/java/org/apache/commons/crypto/cipher/OpenSslCipherTest.java
+++ b/src/test/java/org/apache/commons/crypto/cipher/OpenSslCipherTest.java
@@ -52,7 +52,7 @@ public void init() {
     }
 
     @Test
-    public void testCipherLifecycle() throws Exception {
+    void testCipherLifecycle() throws Exception {
         try (OpenSslCipher cipher = new OpenSslCipher(new Properties(), 
AES.CTR_NO_PADDING)) {
 
             assertThrows(IllegalStateException.class, () -> 
cipher.update(dummyBuffer(), dummyBuffer()));
@@ -76,7 +76,7 @@ public void testCipherLifecycle() throws Exception {
 
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testDoFinalArguments() throws Exception {
+    void testDoFinalArguments() throws Exception {
         assumeTrue(OpenSsl.getLoadingFailureReason() == null);
         final OpenSsl cipher = OpenSsl
                 .getInstance(AES.CTR_NO_PADDING);
@@ -95,7 +95,7 @@ public void testDoFinalArguments() throws Exception {
     @Override
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testInvalidIV() throws Exception {
+    void testInvalidIV() throws Exception {
         assumeTrue(OpenSsl.getLoadingFailureReason() == null);
         final OpenSsl cipher = OpenSsl
                 .getInstance(AES.CTR_NO_PADDING);
@@ -111,7 +111,7 @@ public void testInvalidIV() throws Exception {
     @Override
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testInvalidIVClass() throws Exception {
+    void testInvalidIVClass() throws Exception {
         final OpenSsl cipher = OpenSsl.getInstance(AES.CTR_NO_PADDING);
         assertNotNull(cipher);
 
@@ -122,7 +122,7 @@ public void testInvalidIVClass() throws Exception {
     @Override
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testInvalidKey() throws Exception {
+    void testInvalidKey() throws Exception {
         assumeTrue(OpenSsl.getLoadingFailureReason() == null);
         final OpenSsl cipher = OpenSsl
                 .getInstance(AES.CTR_NO_PADDING);
@@ -137,7 +137,7 @@ public void testInvalidKey() throws Exception {
 
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testInvalidMode() {
+    void testInvalidMode() {
         assumeTrue(OpenSsl.getLoadingFailureReason() == null);
         assertThrows(NoSuchAlgorithmException.class,
                 () -> OpenSsl.getInstance("AES/CTR2/NoPadding"));
@@ -145,7 +145,7 @@ public void testInvalidMode() {
 
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testInvalidPadding() {
+    void testInvalidPadding() {
         assumeTrue(OpenSsl.getLoadingFailureReason() == null);
         assertThrows(NoSuchPaddingException.class,
                 () -> OpenSsl.getInstance("AES/CTR/NoPadding2"));
@@ -153,7 +153,7 @@ public void testInvalidPadding() {
 
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testUpdateArguments() throws Exception {
+    void testUpdateArguments() throws Exception {
         assumeTrue(OpenSsl.getLoadingFailureReason() == null);
         final OpenSsl cipher = OpenSsl
                 .getInstance(AES.CTR_NO_PADDING);
diff --git 
a/src/test/java/org/apache/commons/crypto/cipher/OpenSslCommonModeTest.java 
b/src/test/java/org/apache/commons/crypto/cipher/OpenSslCommonModeTest.java
index 585ce5e9..7d943b1c 100644
--- a/src/test/java/org/apache/commons/crypto/cipher/OpenSslCommonModeTest.java
+++ b/src/test/java/org/apache/commons/crypto/cipher/OpenSslCommonModeTest.java
@@ -25,7 +25,7 @@
 public class OpenSslCommonModeTest {
 
     @Test
-    public void testUpdateAAD() {
+    void testUpdateAAD() {
         assertThrows(UnsupportedOperationException.class, () -> new 
OpenSslCommonMode(0, 0, 0).updateAAD(null));
     }
 }
diff --git a/src/test/java/org/apache/commons/crypto/jna/OpenSslJnaTest.java 
b/src/test/java/org/apache/commons/crypto/jna/OpenSslJnaTest.java
index 42f24abc..46ba7398 100644
--- a/src/test/java/org/apache/commons/crypto/jna/OpenSslJnaTest.java
+++ b/src/test/java/org/apache/commons/crypto/jna/OpenSslJnaTest.java
@@ -27,7 +27,7 @@ public class OpenSslJnaTest {
     private static final String EXPECTED_VERSION_PROPERTY = 
"OpenSslJnaTest.expectedVersion";
 
     @Test
-    public void testMain() throws Throwable {
+    void testMain() throws Throwable {
         OpenSslJna.main(new String[0]);
         final String expectedVersion = 
System.getProperty(EXPECTED_VERSION_PROPERTY, "");
         if (expectedVersion.isEmpty()) {
diff --git 
a/src/test/java/org/apache/commons/crypto/jna/OpenSslNativeJnaTest.java 
b/src/test/java/org/apache/commons/crypto/jna/OpenSslNativeJnaTest.java
index 60bcea15..c6dc0286 100644
--- a/src/test/java/org/apache/commons/crypto/jna/OpenSslNativeJnaTest.java
+++ b/src/test/java/org/apache/commons/crypto/jna/OpenSslNativeJnaTest.java
@@ -26,7 +26,7 @@
 public class OpenSslNativeJnaTest {
 
     @Test
-    public void test(final TestReporter reporter) {
+    void test(final TestReporter reporter) {
         if (OpenSslJna.isEnabled()) {
             reporter.publishEntry(String.format("JNA loaded OK for lib version 
0x%x: ", OpenSslNativeJna.VERSION));
         } else {
diff --git 
a/src/test/java/org/apache/commons/crypto/jna/PositionedCryptoInputStreamJnaTest.java
 
b/src/test/java/org/apache/commons/crypto/jna/PositionedCryptoInputStreamJnaTest.java
index ab47dd43..66c4f84e 100644
--- 
a/src/test/java/org/apache/commons/crypto/jna/PositionedCryptoInputStreamJnaTest.java
+++ 
b/src/test/java/org/apache/commons/crypto/jna/PositionedCryptoInputStreamJnaTest.java
@@ -37,7 +37,7 @@ public void testJNI() throws Exception {
     }
 
     @Test
-    public void testCipher() throws Exception {
+    void testCipher() throws Exception {
         testCipher(OpenSslJnaCipher.class.getName());
     }
 
diff --git 
a/src/test/java/org/apache/commons/crypto/random/AbstractRandomTest.java 
b/src/test/java/org/apache/commons/crypto/random/AbstractRandomTest.java
index dca853a6..cdce7edd 100644
--- a/src/test/java/org/apache/commons/crypto/random/AbstractRandomTest.java
+++ b/src/test/java/org/apache/commons/crypto/random/AbstractRandomTest.java
@@ -47,7 +47,7 @@ private void checkRandomBytes(final CryptoRandom random, 
final int len) {
 
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testRandomBytes() throws Exception {
+    void testRandomBytes() throws Exception {
         try (CryptoRandom random = getCryptoRandom()) {
             // len = 16
             checkRandomBytes(random, 16);
@@ -62,7 +62,7 @@ public void testRandomBytes() throws Exception {
 
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testRandomBytesMultiThreaded() throws Exception {
+    void testRandomBytesMultiThreaded() throws Exception {
         final int threadCount = 100;
         try (final CryptoRandom random = getCryptoRandom()) {
             final List<Thread> threads = new ArrayList<>(threadCount);
diff --git 
a/src/test/java/org/apache/commons/crypto/random/CryptoRandomFactoryTest.java 
b/src/test/java/org/apache/commons/crypto/random/CryptoRandomFactoryTest.java
index bef46890..e09159c8 100644
--- 
a/src/test/java/org/apache/commons/crypto/random/CryptoRandomFactoryTest.java
+++ 
b/src/test/java/org/apache/commons/crypto/random/CryptoRandomFactoryTest.java
@@ -33,7 +33,7 @@
 public class CryptoRandomFactoryTest {
 
     @Test
-    public void testAbstractRandom() {
+    void testAbstractRandom() {
         final Properties properties = new Properties();
         properties.setProperty(CryptoRandomFactory.CLASSES_KEY, 
AbstractRandom.class.getName());
         final Exception ex = assertThrows(GeneralSecurityException.class, () 
-> CryptoRandomFactory.getCryptoRandom(properties));
@@ -42,7 +42,7 @@ public void testAbstractRandom() {
     }
 
     @Test
-    public void testDefaultRandom() throws GeneralSecurityException, 
IOException {
+    void testDefaultRandom() throws GeneralSecurityException, IOException {
         final Properties properties = new Properties();
         try (final CryptoRandom random = 
CryptoRandomFactory.getCryptoRandom(properties)) {
             final String name = random.getClass().getName();
@@ -55,14 +55,14 @@ public void testDefaultRandom() throws 
GeneralSecurityException, IOException {
     }
 
     @Test
-    public void testDefaultRandomClass() throws GeneralSecurityException, 
IOException {
+    void testDefaultRandomClass() throws GeneralSecurityException, IOException 
{
         try (final CryptoRandom random = 
CryptoRandomFactory.getCryptoRandom()) {
             assertEquals(OpenSslCryptoRandom.class.getName(), 
random.getClass().getName());
         }
     }
 
     @Test
-    public void testMissingPropertyCtrRandomRandom() {
+    void testMissingPropertyCtrRandomRandom() {
         final Properties properties = new Properties();
         properties.setProperty(CryptoRandomFactory.CLASSES_KEY, 
MissingPropertyCtrRandom.class.getName());
         final Exception ex = assertThrows(GeneralSecurityException.class, () 
-> CryptoRandomFactory.getCryptoRandom(properties));
@@ -71,14 +71,14 @@ public void testMissingPropertyCtrRandomRandom() {
     }
 
     @Test
-    public void testEmpty() throws Exception {
+    void testEmpty() throws Exception {
         final Properties properties = new Properties();
         properties.setProperty(CryptoRandomFactory.CLASSES_KEY, "");
         CryptoRandomFactory.getCryptoRandom(properties).close();
     }
 
     @Test
-    public void testExceptionInInitializerErrorRandom() throws 
GeneralSecurityException, IOException {
+    void testExceptionInInitializerErrorRandom() throws 
GeneralSecurityException, IOException {
         final Properties properties = new Properties();
         final String classes = 
ExceptionInInitializerErrorRandom.class.getName().concat(",")
             .concat(CryptoRandomFactory.RandomProvider.JAVA.getClassName());
@@ -92,7 +92,7 @@ public void testExceptionInInitializerErrorRandom() throws 
GeneralSecurityExcept
     }
 
     @Test
-    public void testFailingRandom() {
+    void testFailingRandom() {
         final Properties properties = new Properties();
         properties.setProperty(CryptoRandomFactory.CLASSES_KEY, 
FailingRandom.class.getName());
         final Exception ex = assertThrows(GeneralSecurityException.class, () 
-> CryptoRandomFactory.getCryptoRandom(properties));
@@ -106,7 +106,7 @@ public void testFailingRandom() {
     }
 
     @Test
-    public void testFullClassName() throws GeneralSecurityException, 
IOException {
+    void testFullClassName() throws GeneralSecurityException, IOException {
         final Properties props = new Properties();
         props.setProperty(CryptoRandomFactory.CLASSES_KEY, 
JavaCryptoRandom.class.getName());
         try (final CryptoRandom random = 
CryptoRandomFactory.getCryptoRandom(props)) {
@@ -115,7 +115,7 @@ public void testFullClassName() throws 
GeneralSecurityException, IOException {
     }
 
     @Test
-    public void testGetOSRandom() throws GeneralSecurityException, IOException 
{
+    void testGetOSRandom() throws GeneralSecurityException, IOException {
         // Windows does not have a /dev/random device
         assumeTrue(!SystemProperties.getOsName().contains("Windows"));
         final Properties properties = new Properties();
@@ -126,7 +126,7 @@ public void testGetOSRandom() throws 
GeneralSecurityException, IOException {
     }
 
     @Test
-    public void testInvalidRandom() {
+    void testInvalidRandom() {
         final Properties properties = new Properties();
         properties.setProperty(CryptoRandomFactory.CLASSES_KEY, 
"InvalidCipherName");
 
@@ -134,7 +134,7 @@ public void testInvalidRandom() {
     }
 
     @Test
-    public void testInvalidRandomClass() throws GeneralSecurityException, 
IOException {
+    void testInvalidRandomClass() throws GeneralSecurityException, IOException 
{
         final Properties properties = new Properties();
         properties.setProperty("org.apache.commons.crypto.cipher", "OpenSsl");
         try (final CryptoRandom random = 
CryptoRandomFactory.getCryptoRandom(properties)) {
@@ -143,7 +143,7 @@ public void testInvalidRandomClass() throws 
GeneralSecurityException, IOExceptio
     }
 
     @Test
-    public void testNoClasses() {
+    void testNoClasses() {
         final Properties properties = new Properties();
         // An empty string currently means use the default
         // However the splitter drops empty fields
@@ -152,7 +152,7 @@ public void testNoClasses() {
     }
 
     @Test
-    public void testNull() {
+    void testNull() {
         assertThrows(NullPointerException.class, () -> 
CryptoRandomFactory.getCryptoRandom(null));
     }
 }
diff --git 
a/src/test/java/org/apache/commons/crypto/random/OsCryptoRandomTest.java 
b/src/test/java/org/apache/commons/crypto/random/OsCryptoRandomTest.java
index 9a7c4ac6..d6a09f3d 100644
--- a/src/test/java/org/apache/commons/crypto/random/OsCryptoRandomTest.java
+++ b/src/test/java/org/apache/commons/crypto/random/OsCryptoRandomTest.java
@@ -44,7 +44,7 @@ public CryptoRandom getCryptoRandom() throws 
GeneralSecurityException {
     }
 
     @Test
-    public void testInvalidRandom() {
+    void testInvalidRandom() {
         final Properties props = new Properties();
         props.setProperty(CryptoRandomFactory.CLASSES_KEY, 
OsCryptoRandom.class.getName());
         // Invalid device
diff --git 
a/src/test/java/org/apache/commons/crypto/stream/CtrCryptoStreamTest.java 
b/src/test/java/org/apache/commons/crypto/stream/CtrCryptoStreamTest.java
index e5f4e24d..83409c9c 100644
--- a/src/test/java/org/apache/commons/crypto/stream/CtrCryptoStreamTest.java
+++ b/src/test/java/org/apache/commons/crypto/stream/CtrCryptoStreamTest.java
@@ -162,7 +162,7 @@ public void setUp() {
 
     @Test
     @Timeout(value = 120000, unit = TimeUnit.MILLISECONDS)
-    public void testDecrypt() throws Exception {
+    void testDecrypt() throws Exception {
         doDecryptTest(AbstractCipherTest.JCE_CIPHER_CLASSNAME, false);
         doDecryptTest(AbstractCipherTest.OPENSSL_CIPHER_CLASSNAME, false);
 
diff --git 
a/src/test/java/org/apache/commons/crypto/stream/PositionedCryptoInputStreamTest.java
 
b/src/test/java/org/apache/commons/crypto/stream/PositionedCryptoInputStreamTest.java
index 637d1d3c..00daa784 100644
--- 
a/src/test/java/org/apache/commons/crypto/stream/PositionedCryptoInputStreamTest.java
+++ 
b/src/test/java/org/apache/commons/crypto/stream/PositionedCryptoInputStreamTest.java
@@ -326,7 +326,7 @@ protected void testCipher(final String cipherClass) throws 
Exception {
     }
 
     @Test
-    public void testJCE() throws Exception {
+    void testJCE() throws Exception {
         testCipher(AbstractCipherTest.JCE_CIPHER_CLASSNAME);
     }
 
diff --git 
a/src/test/java/org/apache/commons/crypto/stream/input/ChannelInputTest.java 
b/src/test/java/org/apache/commons/crypto/stream/input/ChannelInputTest.java
index cd2686a9..ebdd25a9 100644
--- a/src/test/java/org/apache/commons/crypto/stream/input/ChannelInputTest.java
+++ b/src/test/java/org/apache/commons/crypto/stream/input/ChannelInputTest.java
@@ -32,7 +32,7 @@
 public class ChannelInputTest {
 
        @Test
-       public void testSkipWithSkipBuffer() throws IOException {
+       void testSkipWithSkipBuffer() throws IOException {
                try (final ChannelInput channelInput = new ChannelInput(
                                Channels.newChannel(new 
ByteArrayInputStream(new byte[10])))) {
                        assertEquals(0, channelInput.skip(0));
diff --git 
a/src/test/java/org/apache/commons/crypto/stream/output/StreamOutputTest.java 
b/src/test/java/org/apache/commons/crypto/stream/output/StreamOutputTest.java
index 3275f3b5..9973b1b3 100644
--- 
a/src/test/java/org/apache/commons/crypto/stream/output/StreamOutputTest.java
+++ 
b/src/test/java/org/apache/commons/crypto/stream/output/StreamOutputTest.java
@@ -31,7 +31,7 @@
 public class StreamOutputTest {
 
        @Test
-       public void testGetOut() throws IOException {
+       void testGetOut() throws IOException {
                final ByteArrayOutputStream baos = new ByteArrayOutputStream();
                try (StreamOutput streamOutput = new StreamOutput(baos, 1024)) {
                        assertEquals(baos, streamOutput.getOut());
diff --git a/src/test/java/org/apache/commons/crypto/utils/EnumTest.java 
b/src/test/java/org/apache/commons/crypto/utils/EnumTest.java
index 194de85f..bc6d58a9 100644
--- a/src/test/java/org/apache/commons/crypto/utils/EnumTest.java
+++ b/src/test/java/org/apache/commons/crypto/utils/EnumTest.java
@@ -46,7 +46,7 @@ private void checkImplClass(final RandomProvider value) {
     }
 
     @Test
-    public void testCipher() throws Exception {
+    void testCipher() throws Exception {
         for (final CipherProvider value : 
CryptoCipherFactory.CipherProvider.values()) {
             ReflectionUtils.getClassByName(value.getClassName());
             checkImplClass(value);
@@ -54,7 +54,7 @@ public void testCipher() throws Exception {
     }
 
     @Test
-    public void testRandom() throws Exception {
+    void testRandom() throws Exception {
         for (final RandomProvider value : 
CryptoRandomFactory.RandomProvider.values()) {
             ReflectionUtils.getClassByName(value.getClassName());
             checkImplClass(value);
diff --git a/src/test/java/org/apache/commons/crypto/utils/UtilsTest.java 
b/src/test/java/org/apache/commons/crypto/utils/UtilsTest.java
index 09ecaeac..0ec7f912 100644
--- a/src/test/java/org/apache/commons/crypto/utils/UtilsTest.java
+++ b/src/test/java/org/apache/commons/crypto/utils/UtilsTest.java
@@ -28,7 +28,7 @@
 
 public class UtilsTest {
     @Test
-    public void testGetProperties() {
+    void testGetProperties() {
         final Properties props = new Properties();
         props.setProperty(
             "garbage.in",
@@ -38,12 +38,12 @@ public void testGetProperties() {
     }
 
     @Test
-    public void testSplitNull() {
+    void testSplitNull() {
         assertEquals(Collections.<String> emptyList(), 
Utils.splitClassNames(null, ","));
     }
 
     @Test
-    public void testSplitOmitEmptyLine() {
+    void testSplitOmitEmptyLine() {
         List<String> clazzNames = Utils.splitClassNames("", ",");
         assertEquals(Collections.<String> emptyList(), clazzNames);
 


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