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-collections.git


The following commit(s) were added to refs/heads/master by this push:
     new 3d737b007 Use JUnit 5 convention for class visibility
3d737b007 is described below

commit 3d737b007a970fec976beba45ff196a84566006f
Author: Gary D. Gregory <garydgreg...@gmail.com>
AuthorDate: Sun Jun 8 13:56:14 2025 -0400

    Use JUnit 5 convention for class visibility
---
 .../org/apache/commons/collections4/ArrayUtilsTest.java   |  2 +-
 .../org/apache/commons/collections4/BagUtilsTest.java     |  2 +-
 .../org/apache/commons/collections4/ClosureUtilsTest.java |  2 +-
 .../apache/commons/collections4/CollectionUtilsTest.java  |  2 +-
 .../apache/commons/collections4/ComparatorUtilsTest.java  |  2 +-
 .../apache/commons/collections4/EnumerationUtilsTest.java |  2 +-
 .../org/apache/commons/collections4/FactoryUtilsTest.java | 15 +++++++++++++--
 .../apache/commons/collections4/FluentIterableTest.java   |  2 +-
 .../apache/commons/collections4/IterableUtilsTest.java    |  2 +-
 .../apache/commons/collections4/IteratorUtilsTest.java    |  2 +-
 .../org/apache/commons/collections4/ListUtilsTest.java    |  2 +-
 .../org/apache/commons/collections4/MapUtilsTest.java     |  2 +-
 .../apache/commons/collections4/MultiMapUtilsTest.java    |  2 +-
 .../apache/commons/collections4/MultiSetUtilsTest.java    |  2 +-
 .../apache/commons/collections4/PredicateUtilsTest.java   |  2 +-
 .../org/apache/commons/collections4/QueueUtilsTest.java   |  2 +-
 .../org/apache/commons/collections4/SetUtilsTest.java     |  2 +-
 .../apache/commons/collections4/SplitMapUtilsTest.java    |  2 +-
 .../apache/commons/collections4/TransformerUtilsTest.java |  2 +-
 .../org/apache/commons/collections4/TrieUtilsTest.java    |  2 +-
 .../bloomfilter/ArrayCountingBloomFilterTest.java         |  2 +-
 .../collections4/bloomfilter/ArrayTrackerTest.java        |  2 +-
 .../BitMapExtractorFromArrayCountingBloomFilterTest.java  |  2 +-
 .../BitMapExtractorFromIndexExtractorTest.java            |  2 +-
 .../BitMapExtractorFromLayeredBloomFilterTest.java        |  2 +-
 .../bloomfilter/BitMapExtractorFromLongArrayTest.java     |  2 +-
 .../BitMapExtractorFromSimpleBloomFilterTest.java         |  2 +-
 .../BitMapExtractorFromSparseBloomFilterTest.java         |  2 +-
 .../BitMapExtractorFromWrappedBloomFilterTest.java        |  2 +-
 .../collections4/bloomfilter/BitMapTrackerTest.java       |  2 +-
 .../commons/collections4/bloomfilter/BitMapsTest.java     |  2 +-
 .../BloomFilterExtractorFromBloomFilterArrayTest.java     |  2 +-
 .../BloomFilterExtractorFromLayeredBloomFilterTest.java   |  2 +-
 .../bloomfilter/BloomFilterExtractorTest.java             |  2 +-
 .../CellExtractorFromArrayCountingBloomFilterTest.java    |  2 +-
 .../CellExtractorFromDefaultIndexExtractorTest.java       |  2 +-
 .../CellExtractorFromLayeredBloomFilterTest.java          |  2 +-
 .../collections4/bloomfilter/CountingPredicateTest.java   |  2 +-
 .../bloomfilter/DefaultBitMapExtractorTest.java           |  2 +-
 .../bloomfilter/DefaultBloomFilterExtractorTest.java      |  2 +-
 .../collections4/bloomfilter/DefaultBloomFilterTest.java  |  6 +++---
 .../bloomfilter/DefaultCellExtractorTest.java             |  2 +-
 .../bloomfilter/DefaultIndexExtractorTest.java            |  2 +-
 .../bloomfilter/EnhancedDoubleHasherTest.java             |  2 +-
 .../IndexExtractorFromArrayCountingBloomFilterTest.java   |  2 +-
 .../IndexExtractorFromBitmapExtractorTest.java            |  2 +-
 .../bloomfilter/IndexExtractorFromHasherTest.java         |  2 +-
 .../bloomfilter/IndexExtractorFromIntArrayTest.java       |  2 +-
 .../IndexExtractorFromSimpleBloomFilterTest.java          |  2 +-
 .../IndexExtractorFromSparseBloomFilterTest.java          |  2 +-
 .../bloomfilter/IndexExtractorFromUniqueHasherTest.java   |  2 +-
 .../collections4/bloomfilter/IndexExtractorTest.java      |  2 +-
 .../commons/collections4/bloomfilter/IndexFilterTest.java |  2 +-
 .../collections4/bloomfilter/LayerManagerTest.java        |  2 +-
 .../collections4/bloomfilter/LayeredBloomFilterTest.java  |  2 +-
 .../collections4/bloomfilter/SetOperationsTest.java       |  2 +-
 .../commons/collections4/bloomfilter/ShapeTest.java       |  2 +-
 .../collections4/bloomfilter/SimpleBloomFilterTest.java   |  2 +-
 .../collections4/bloomfilter/SparseBloomFilterTest.java   |  2 +-
 .../collections4/bloomfilter/WrappedBloomFilterTest.java  |  2 +-
 .../collections4/collection/IndexedCollectionTest.java    |  2 +-
 .../collection/PredicatedCollectionBuilderTest.java       |  2 +-
 .../collections4/comparators/BooleanComparatorTest.java   |  2 +-
 .../comparators/ComparableComparatorTest.java             |  2 +-
 .../collections4/comparators/ComparatorChainTest.java     |  6 +++---
 .../comparators/FixedOrderComparatorTest.java             |  2 +-
 .../collections4/comparators/ReverseComparatorTest.java   |  2 +-
 .../comparators/TransformingComparatorTest.java           |  2 +-
 .../commons/collections4/functors/AllPredicateTest.java   |  4 ++--
 .../collections4/functors/CatchAndRethrowClosureTest.java |  2 +-
 .../collections4/functors/ComparatorPredicateTest.java    |  2 +-
 .../commons/collections4/functors/EqualPredicateTest.java |  4 ++--
 .../commons/collections4/functors/NullPredicateTest.java  |  2 +-
 .../iterators/CartesianProductIteratorTest.java           |  2 +-
 .../collections4/iterators/CollatingIteratorTest.java     |  2 +-
 .../collections4/iterators/ExtendedIteratorTest.java      |  2 +-
 .../collections4/iterators/FilterListIteratorTest.java    |  2 +-
 .../collections4/iterators/IteratorEnumerationTest.java   |  2 +-
 .../collections4/iterators/IteratorIterableTest.java      |  2 +-
 .../collections4/iterators/LazyIteratorChainTest.java     |  2 +-
 .../collections4/iterators/LoopingIteratorTest.java       |  2 +-
 .../collections4/iterators/LoopingListIteratorTest.java   |  2 +-
 .../collections4/iterators/NodeListIteratorTest.java      |  2 +-
 .../collections4/iterators/ObjectGraphIteratorTest.java   |  2 +-
 .../collections4/iterators/PermutationIteratorTest.java   |  2 +-
 .../collections4/iterators/ZippingIteratorTest.java       |  2 +-
 .../commons/collections4/keyvalue/MultiKeyTest.java       |  2 +-
 .../commons/collections4/list/Collections701Test.java     |  2 +-
 .../apache/commons/collections4/list/LazyListTest.java    |  2 +-
 .../collections4/map/ConcurrentReferenceHashMapTest.java  |  2 +-
 .../collections4/map/MultiKeyMapCompress672Test.java      |  2 +-
 .../collections4/properties/EmptyPropertiesTest.java      |  2 +-
 .../properties/OrderedPropertiesFactoryTest.java          |  4 ++--
 .../collections4/properties/OrderedPropertiesTest.java    |  2 +-
 .../collections4/properties/PropertiesFactoryTest.java    |  4 ++--
 .../properties/SortedPropertiesFactoryTest.java           |  4 ++--
 .../collections4/properties/SortedPropertiesTest.java     |  2 +-
 .../collections4/sequence/SequencesComparatorTest.java    |  2 +-
 .../collections4/splitmap/TransformedSplitMapTest.java    |  2 +-
 99 files changed, 120 insertions(+), 109 deletions(-)

diff --git a/src/test/java/org/apache/commons/collections4/ArrayUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/ArrayUtilsTest.java
index cb847a5d3..16a88c993 100644
--- a/src/test/java/org/apache/commons/collections4/ArrayUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/ArrayUtilsTest.java
@@ -22,7 +22,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.Test;
 
-public class ArrayUtilsTest {
+class ArrayUtilsTest {
 
     @Test
     void testContains() {
diff --git a/src/test/java/org/apache/commons/collections4/BagUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/BagUtilsTest.java
index 899bcc389..acc4b1f92 100644
--- a/src/test/java/org/apache/commons/collections4/BagUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/BagUtilsTest.java
@@ -37,7 +37,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for BagUtils factory methods.
  */
-public class BagUtilsTest {
+class BagUtilsTest {
 
     protected Predicate<Object> truePredicate = TruePredicate.truePredicate();
     protected Transformer<Object, Object> nopTransformer = 
TransformerUtils.nopTransformer();
diff --git 
a/src/test/java/org/apache/commons/collections4/ClosureUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/ClosureUtilsTest.java
index fbbc86a7f..546b2e0dd 100644
--- a/src/test/java/org/apache/commons/collections4/ClosureUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/ClosureUtilsTest.java
@@ -38,7 +38,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the ClosureUtils class.
  */
-public class ClosureUtilsTest {
+class ClosureUtilsTest {
 
     static class MockClosure<T> implements Closure<T> {
         int count;
diff --git 
a/src/test/java/org/apache/commons/collections4/CollectionUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/CollectionUtilsTest.java
index 380552469..4607cc2b6 100644
--- a/src/test/java/org/apache/commons/collections4/CollectionUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/CollectionUtilsTest.java
@@ -64,7 +64,7 @@ import org.junit.jupiter.api.Test;
  * Tests for CollectionUtils.
  */
 @SuppressWarnings("boxing")
-public class CollectionUtilsTest extends MockTestCase {
+class CollectionUtilsTest extends MockTestCase {
 
     private static final Predicate<Number> EQUALS_TWO = input -> 
input.intValue() == 2;
 
diff --git 
a/src/test/java/org/apache/commons/collections4/ComparatorUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/ComparatorUtilsTest.java
index 3b02fe776..43bba802f 100644
--- a/src/test/java/org/apache/commons/collections4/ComparatorUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/ComparatorUtilsTest.java
@@ -27,7 +27,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests ComparatorUtils.
  */
-public class ComparatorUtilsTest {
+class ComparatorUtilsTest {
 
     @Test
     void testBooleanComparator() {
diff --git 
a/src/test/java/org/apache/commons/collections4/EnumerationUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/EnumerationUtilsTest.java
index 1354f15f5..829d34dfe 100644
--- a/src/test/java/org/apache/commons/collections4/EnumerationUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/EnumerationUtilsTest.java
@@ -36,7 +36,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests EnumerationUtils.
  */
-public class EnumerationUtilsTest {
+class EnumerationUtilsTest {
 
     public static final String TO_LIST_FIXTURE = "this is a test";
 
diff --git 
a/src/test/java/org/apache/commons/collections4/FactoryUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/FactoryUtilsTest.java
index 0004055e3..be391e857 100644
--- a/src/test/java/org/apache/commons/collections4/FactoryUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/FactoryUtilsTest.java
@@ -39,13 +39,17 @@ import org.junit.jupiter.api.Test;
 public class FactoryUtilsTest {
 
     public static class Mock1 {
+
         private final int iVal;
+
         public Mock1(final int val) {
             iVal = val;
         }
+
         public Mock1(final Mock1 mock) {
             iVal = mock.iVal;
         }
+
         @Override
         public boolean equals(final Object obj) {
             if (obj instanceof Mock1 && iVal == ((Mock1) obj).iVal) {
@@ -53,6 +57,7 @@ public class FactoryUtilsTest {
             }
             return false;
         }
+
         @Override
         public int hashCode() { // please Findbugs
             return super.hashCode();
@@ -65,9 +70,11 @@ public class FactoryUtilsTest {
          */
         private static final long serialVersionUID = 4899282162482588924L;
         private final Object iVal;
-        public Mock2(final Object val) {
+
+        Mock2(final Object val) {
             iVal = val;
         }
+
         @Override
         public boolean equals(final Object obj) {
             if (obj instanceof Mock2 && iVal == ((Mock2) obj).iVal) {
@@ -75,6 +82,7 @@ public class FactoryUtilsTest {
             }
             return false;
         }
+
         @Override
         public int hashCode() { // please Findbugs
             return super.hashCode();
@@ -82,12 +90,15 @@ public class FactoryUtilsTest {
     }
 
     public static class Mock3 {
+
         private static int cCounter;
         private final int iVal;
+
         public Mock3() {
             iVal = cCounter++;
         }
-        public int getValue() {
+
+        int getValue() {
             return iVal;
         }
     }
diff --git 
a/src/test/java/org/apache/commons/collections4/FluentIterableTest.java 
b/src/test/java/org/apache/commons/collections4/FluentIterableTest.java
index cdcb3f38e..dd2ef2e8e 100644
--- a/src/test/java/org/apache/commons/collections4/FluentIterableTest.java
+++ b/src/test/java/org/apache/commons/collections4/FluentIterableTest.java
@@ -40,7 +40,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for FluentIterable.
  */
-public class FluentIterableTest {
+class FluentIterableTest {
 
     private static final Predicate<Number> EVEN = input -> input.intValue() % 
2 == 0;
 
diff --git 
a/src/test/java/org/apache/commons/collections4/IterableUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/IterableUtilsTest.java
index 3cea6b345..79e014fc5 100644
--- a/src/test/java/org/apache/commons/collections4/IterableUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/IterableUtilsTest.java
@@ -46,7 +46,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for IterableUtils.
  */
-public class IterableUtilsTest {
+class IterableUtilsTest {
 
     private static final Predicate<Number> EQUALS_TWO = input -> 
input.intValue() == 2;
 
diff --git 
a/src/test/java/org/apache/commons/collections4/IteratorUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/IteratorUtilsTest.java
index 3acaca9de..bde869b47 100644
--- a/src/test/java/org/apache/commons/collections4/IteratorUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/IteratorUtilsTest.java
@@ -66,7 +66,7 @@ import org.w3c.dom.NodeList;
 /**
  * Tests for IteratorUtils.
  */
-public class IteratorUtilsTest {
+class IteratorUtilsTest {
 
     /**
      * Collection of {@link Integer}s
diff --git a/src/test/java/org/apache/commons/collections4/ListUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/ListUtilsTest.java
index e59be764f..f64d37e42 100644
--- a/src/test/java/org/apache/commons/collections4/ListUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/ListUtilsTest.java
@@ -41,7 +41,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for ListUtils.
  */
-public class ListUtilsTest {
+class ListUtilsTest {
 
     private static final String a = "a";
     private static final String b = "b";
diff --git a/src/test/java/org/apache/commons/collections4/MapUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/MapUtilsTest.java
index c8dd9417f..0dbeed254 100644
--- a/src/test/java/org/apache/commons/collections4/MapUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/MapUtilsTest.java
@@ -56,7 +56,7 @@ import org.junit.jupiter.api.Test;
  * Tests for MapUtils.
  */
 @SuppressWarnings("boxing")
-public class MapUtilsTest {
+class MapUtilsTest {
 
     /**
      * Test class for populateMap(MultiMap).
diff --git 
a/src/test/java/org/apache/commons/collections4/MultiMapUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/MultiMapUtilsTest.java
index df3e4de49..14f177f2b 100644
--- a/src/test/java/org/apache/commons/collections4/MultiMapUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/MultiMapUtilsTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for MultiMapUtils
  */
-public class MultiMapUtilsTest {
+class MultiMapUtilsTest {
 
     @Test
     void testEmptyIfNull() {
diff --git 
a/src/test/java/org/apache/commons/collections4/MultiSetUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/MultiSetUtilsTest.java
index 38f55e5aa..670f2cf52 100644
--- a/src/test/java/org/apache/commons/collections4/MultiSetUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/MultiSetUtilsTest.java
@@ -28,7 +28,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for MultiSetUtils.
  */
-public class MultiSetUtilsTest {
+class MultiSetUtilsTest {
 
     private String[] fullArray;
     private MultiSet<String> multiSet;
diff --git 
a/src/test/java/org/apache/commons/collections4/PredicateUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/PredicateUtilsTest.java
index c4262bfce..bcd11ed7b 100644
--- a/src/test/java/org/apache/commons/collections4/PredicateUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/PredicateUtilsTest.java
@@ -45,7 +45,7 @@ import org.junit.jupiter.api.Test;
  * Tests the PredicateUtils class.
  */
 @SuppressWarnings("boxing")
-public class PredicateUtilsTest extends AbstractPredicateTest {
+class PredicateUtilsTest extends AbstractPredicateTest {
 
     @Override
     protected Predicate<?> generatePredicate() {
diff --git a/src/test/java/org/apache/commons/collections4/QueueUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/QueueUtilsTest.java
index 2348aac53..9e4829d56 100644
--- a/src/test/java/org/apache/commons/collections4/QueueUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/QueueUtilsTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for QueueUtils factory methods.
  */
-public class QueueUtilsTest {
+class QueueUtilsTest {
 
     protected Predicate<Object> truePredicate = TruePredicate.truePredicate();
     protected Transformer<Object, Object> nopTransformer = 
TransformerUtils.nopTransformer();
diff --git a/src/test/java/org/apache/commons/collections4/SetUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/SetUtilsTest.java
index c567fd362..ffb7bc3a1 100644
--- a/src/test/java/org/apache/commons/collections4/SetUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/SetUtilsTest.java
@@ -38,7 +38,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for SetUtils.
  */
-public class SetUtilsTest {
+class SetUtilsTest {
 
     private Set<Integer> setA;
     private Set<Integer> setB;
diff --git 
a/src/test/java/org/apache/commons/collections4/SplitMapUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/SplitMapUtilsTest.java
index 91623d399..94628d0a2 100644
--- a/src/test/java/org/apache/commons/collections4/SplitMapUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/SplitMapUtilsTest.java
@@ -36,7 +36,7 @@ import org.junit.jupiter.api.Test;
  * Tests for {@link TransformedSplitMap}
  */
 @SuppressWarnings("boxing")
-public class SplitMapUtilsTest {
+class SplitMapUtilsTest {
 
     private Map<String, Integer> backingMap;
     private TransformedSplitMap<String, String, String, Integer> 
transformedMap;
diff --git 
a/src/test/java/org/apache/commons/collections4/TransformerUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/TransformerUtilsTest.java
index 8b9752bab..5029f2e60 100644
--- a/src/test/java/org/apache/commons/collections4/TransformerUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/TransformerUtilsTest.java
@@ -44,7 +44,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the TransformerUtils class.
  */
-public class TransformerUtilsTest {
+class TransformerUtilsTest {
 
     private static final Object cObject = new Object();
     private static final Object cString = "Hello";
diff --git a/src/test/java/org/apache/commons/collections4/TrieUtilsTest.java 
b/src/test/java/org/apache/commons/collections4/TrieUtilsTest.java
index dfc32bb27..eb7f7a494 100644
--- a/src/test/java/org/apache/commons/collections4/TrieUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections4/TrieUtilsTest.java
@@ -27,7 +27,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for TrieUtils factory methods.
  */
-public class TrieUtilsTest {
+class TrieUtilsTest {
 
     @Test
     void testUnmodifiableTrie() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayCountingBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayCountingBloomFilterTest.java
index f728d678d..f04ecf2d3 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayCountingBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayCountingBloomFilterTest.java
@@ -19,7 +19,7 @@ package org.apache.commons.collections4.bloomfilter;
 /**
  * Tests for the {@link ArrayCountingBloomFilter}.
  */
-public class ArrayCountingBloomFilterTest extends 
AbstractCountingBloomFilterTest<ArrayCountingBloomFilter> {
+class ArrayCountingBloomFilterTest extends 
AbstractCountingBloomFilterTest<ArrayCountingBloomFilter> {
 
     @Override
     protected ArrayCountingBloomFilter createEmptyFilter(final Shape shape) {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayTrackerTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayTrackerTest.java
index 906370f11..e65a002d2 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayTrackerTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/ArrayTrackerTest.java
@@ -27,7 +27,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the Filter class.
  */
-public class ArrayTrackerTest {
+class ArrayTrackerTest {
 
     @Test
     void testSeen() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromArrayCountingBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromArrayCountingBloomFilterTest.java
index 1526c0e16..d8f7fbd49 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromArrayCountingBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromArrayCountingBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class BitMapExtractorFromArrayCountingBloomFilterTest extends 
AbstractBitMapExtractorTest {
+class BitMapExtractorFromArrayCountingBloomFilterTest extends 
AbstractBitMapExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromIndexExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromIndexExtractorTest.java
index f30ab16ee..b153d240a 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromIndexExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromIndexExtractorTest.java
@@ -23,7 +23,7 @@ import java.util.List;
 
 import org.junit.jupiter.api.Test;
 
-public class BitMapExtractorFromIndexExtractorTest extends 
AbstractBitMapExtractorTest {
+class BitMapExtractorFromIndexExtractorTest extends 
AbstractBitMapExtractorTest {
 
     @Override
     protected BitMapExtractor createEmptyExtractor() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLayeredBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLayeredBloomFilterTest.java
index d19a5712a..baa4c7927 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLayeredBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLayeredBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class BitMapExtractorFromLayeredBloomFilterTest extends 
AbstractBitMapExtractorTest {
+class BitMapExtractorFromLayeredBloomFilterTest extends 
AbstractBitMapExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLongArrayTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLongArrayTest.java
index 45e47e907..69e14727f 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLongArrayTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromLongArrayTest.java
@@ -23,7 +23,7 @@ import java.util.List;
 
 import org.junit.jupiter.api.Test;
 
-public class BitMapExtractorFromLongArrayTest extends 
AbstractBitMapExtractorTest {
+class BitMapExtractorFromLongArrayTest extends AbstractBitMapExtractorTest {
 
     @Test
     void constructorTest() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSimpleBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSimpleBloomFilterTest.java
index f93041d35..ddc0c0199 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSimpleBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSimpleBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class BitMapExtractorFromSimpleBloomFilterTest extends 
AbstractBitMapExtractorTest {
+class BitMapExtractorFromSimpleBloomFilterTest extends 
AbstractBitMapExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSparseBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSparseBloomFilterTest.java
index 480b2964f..8c0b116fa 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSparseBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromSparseBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class BitMapExtractorFromSparseBloomFilterTest extends 
AbstractBitMapExtractorTest {
+class BitMapExtractorFromSparseBloomFilterTest extends 
AbstractBitMapExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromWrappedBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromWrappedBloomFilterTest.java
index ff0e667eb..84d7564b1 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromWrappedBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapExtractorFromWrappedBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class BitMapExtractorFromWrappedBloomFilterTest extends 
AbstractBitMapExtractorTest {
+class BitMapExtractorFromWrappedBloomFilterTest extends 
AbstractBitMapExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapTrackerTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapTrackerTest.java
index 7d026ff70..e01280ab1 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapTrackerTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapTrackerTest.java
@@ -26,7 +26,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the Filter class.
  */
-public class BitMapTrackerTest {
+class BitMapTrackerTest {
 
     @Test
     void testSeen() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapsTest.java 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapsTest.java
index 34f86bc60..b7a6dd7bf 100644
--- a/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapsTest.java
+++ b/src/test/java/org/apache/commons/collections4/bloomfilter/BitMapsTest.java
@@ -24,7 +24,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.Test;
 
-public class BitMapsTest {
+class BitMapsTest {
 
     /**
      * Assert the {@link BitMaps#mod(long, int)} method functions as an 
unsigned modulus.
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromBloomFilterArrayTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromBloomFilterArrayTest.java
index 12023bd62..ecd495bef 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromBloomFilterArrayTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromBloomFilterArrayTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class BloomFilterExtractorFromBloomFilterArrayTest extends 
AbstractBloomFilterExtractorTest {
+class BloomFilterExtractorFromBloomFilterArrayTest extends 
AbstractBloomFilterExtractorTest {
 
     @Override
     protected BloomFilterExtractor createUnderTest(final BloomFilter... 
filters) {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromLayeredBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromLayeredBloomFilterTest.java
index 6cf2ea6bd..4b3c057c3 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromLayeredBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorFromLayeredBloomFilterTest.java
@@ -19,7 +19,7 @@ package org.apache.commons.collections4.bloomfilter;
 import org.apache.commons.collections4.bloomfilter.LayerManager.Builder;
 import org.apache.commons.lang3.ArrayUtils;
 
-public class BloomFilterExtractorFromLayeredBloomFilterTest extends 
AbstractBloomFilterExtractorTest {
+class BloomFilterExtractorFromLayeredBloomFilterTest extends 
AbstractBloomFilterExtractorTest {
 
     @Override
     protected BloomFilterExtractor createUnderTest(final BloomFilter... 
filters) {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorTest.java
index 172ec1d40..1b3ab9282 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/BloomFilterExtractorTest.java
@@ -24,7 +24,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests {@link BloomFilterExtractor}.
  */
-public class BloomFilterExtractorTest {
+class BloomFilterExtractorTest {
 
     @Test
     void testFlattenEmpty() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromArrayCountingBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromArrayCountingBloomFilterTest.java
index 79c6cb5c7..a24aebe11 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromArrayCountingBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromArrayCountingBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class CellExtractorFromArrayCountingBloomFilterTest extends 
AbstractCellExtractorTest {
+class CellExtractorFromArrayCountingBloomFilterTest extends 
AbstractCellExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromDefaultIndexExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromDefaultIndexExtractorTest.java
index c2dd92faa..df2c85254 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromDefaultIndexExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromDefaultIndexExtractorTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class CellExtractorFromDefaultIndexExtractorTest extends 
AbstractCellExtractorTest {
+class CellExtractorFromDefaultIndexExtractorTest extends 
AbstractCellExtractorTest {
 
     int[] data = {0, 63, 1, 64, 128, 1, 127};
     int[] indices = {0, 1, 63, 64, 127, 128};
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromLayeredBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromLayeredBloomFilterTest.java
index 4cb73fc2e..004095ae1 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromLayeredBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CellExtractorFromLayeredBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class CellExtractorFromLayeredBloomFilterTest extends 
AbstractCellExtractorTest {
+class CellExtractorFromLayeredBloomFilterTest extends 
AbstractCellExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CountingPredicateTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CountingPredicateTest.java
index 061aaa613..c8c36ccea 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/CountingPredicateTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/CountingPredicateTest.java
@@ -27,7 +27,7 @@ import java.util.function.BiPredicate;
 import org.apache.commons.lang3.tuple.Pair;
 import org.junit.jupiter.api.Test;
 
-public class CountingPredicateTest {
+class CountingPredicateTest {
 
     private final Integer[] ary = {Integer.valueOf(1), Integer.valueOf(2)};
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBitMapExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBitMapExtractorTest.java
index 9a8a10334..b19436017 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBitMapExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBitMapExtractorTest.java
@@ -24,7 +24,7 @@ import java.util.function.LongPredicate;
 
 import org.junit.jupiter.api.Test;
 
-public class DefaultBitMapExtractorTest extends AbstractBitMapExtractorTest {
+class DefaultBitMapExtractorTest extends AbstractBitMapExtractorTest {
 
     class DefaultBitMapExtractor implements BitMapExtractor {
         long[] bitMaps;
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterExtractorTest.java
index 739a62ee1..591334a01 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterExtractorTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class DefaultBloomFilterExtractorTest extends 
AbstractBloomFilterExtractorTest {
+class DefaultBloomFilterExtractorTest extends AbstractBloomFilterExtractorTest 
{
 
     @Override
     protected BloomFilterExtractor createUnderTest(final BloomFilter... 
filters) {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterTest.java
index bd418665b..9eb48fd8e 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultBloomFilterTest.java
@@ -29,7 +29,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for the {@link BloomFilter}.
  */
-public class DefaultBloomFilterTest extends 
AbstractBloomFilterTest<DefaultBloomFilterTest.AbstractDefaultBloomFilter> {
+class DefaultBloomFilterTest extends 
AbstractBloomFilterTest<DefaultBloomFilterTest.AbstractDefaultBloomFilter> {
 
     abstract static class AbstractDefaultBloomFilter<T extends 
AbstractDefaultBloomFilter<T>> implements BloomFilter<T> {
 
@@ -128,7 +128,7 @@ public class DefaultBloomFilterTest extends 
AbstractBloomFilterTest<DefaultBloom
      */
     public static class NonSparseDefaultBloomFilter extends 
AbstractDefaultBloomFilter {
 
-        public NonSparseDefaultBloomFilter(final Shape shape) {
+        NonSparseDefaultBloomFilter(final Shape shape) {
             super(shape);
         }
 
@@ -150,7 +150,7 @@ public class DefaultBloomFilterTest extends 
AbstractBloomFilterTest<DefaultBloom
      */
     public static class SparseDefaultBloomFilter extends 
AbstractDefaultBloomFilter<SparseDefaultBloomFilter> {
 
-        public SparseDefaultBloomFilter(final Shape shape) {
+        SparseDefaultBloomFilter(final Shape shape) {
             super(shape);
         }
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultCellExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultCellExtractorTest.java
index e80b1f844..52f38654f 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultCellExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultCellExtractorTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class DefaultCellExtractorTest extends AbstractCellExtractorTest {
+class DefaultCellExtractorTest extends AbstractCellExtractorTest {
 
     /** Make forEachIndex unordered and contain duplicates. */
     private final int[] indices = {1, 2, 3, 5};
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultIndexExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultIndexExtractorTest.java
index 33e08c0e5..ec38a582f 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultIndexExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/DefaultIndexExtractorTest.java
@@ -28,7 +28,7 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-public class DefaultIndexExtractorTest extends AbstractIndexExtractorTest {
+class DefaultIndexExtractorTest extends AbstractIndexExtractorTest {
 
     /**
      * Generates an array of integers.
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasherTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasherTest.java
index 139b1f170..1e0033164 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasherTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/EnhancedDoubleHasherTest.java
@@ -24,7 +24,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the {@link EnhancedDoubleHasher}.
  */
-public class EnhancedDoubleHasherTest extends AbstractHasherTest {
+class EnhancedDoubleHasherTest extends AbstractHasherTest {
     int[] expected = {1, 0, 0, 2, 7, 16, 30, 50, 5, 40, 12, 66, 59, 64, 10, 
42, 17};
 
     @Override
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromArrayCountingBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromArrayCountingBloomFilterTest.java
index 14250967c..1240d8c12 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromArrayCountingBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromArrayCountingBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class IndexExtractorFromArrayCountingBloomFilterTest extends 
AbstractIndexExtractorTest {
+class IndexExtractorFromArrayCountingBloomFilterTest extends 
AbstractIndexExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromBitmapExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromBitmapExtractorTest.java
index 10a3ec1bb..b28f61145 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromBitmapExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromBitmapExtractorTest.java
@@ -24,7 +24,7 @@ import java.util.function.LongPredicate;
 
 import org.junit.jupiter.api.Test;
 
-public class IndexExtractorFromBitmapExtractorTest extends 
AbstractIndexExtractorTest {
+class IndexExtractorFromBitmapExtractorTest extends AbstractIndexExtractorTest 
{
 
     private static final class TestingBitMapExtractor implements 
BitMapExtractor {
         long[] values;
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromHasherTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromHasherTest.java
index 4e7a7b478..28ffef71a 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromHasherTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromHasherTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class IndexExtractorFromHasherTest extends AbstractIndexExtractorTest {
+class IndexExtractorFromHasherTest extends AbstractIndexExtractorTest {
 
     @Override
     protected IndexExtractor createEmptyExtractor() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromIntArrayTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromIntArrayTest.java
index 7a8536fbf..35ece8f47 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromIntArrayTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromIntArrayTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class IndexExtractorFromIntArrayTest extends AbstractIndexExtractorTest 
{
+class IndexExtractorFromIntArrayTest extends AbstractIndexExtractorTest {
 
     int[] data = {6, 8, 1, 2, 4, 4, 5};
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSimpleBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSimpleBloomFilterTest.java
index 9f3c352c7..99b9fa7c0 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSimpleBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSimpleBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class IndexExtractorFromSimpleBloomFilterTest extends 
AbstractIndexExtractorTest {
+class IndexExtractorFromSimpleBloomFilterTest extends 
AbstractIndexExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSparseBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSparseBloomFilterTest.java
index e159e9831..f248e956f 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSparseBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromSparseBloomFilterTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class IndexExtractorFromSparseBloomFilterTest extends 
AbstractIndexExtractorTest {
+class IndexExtractorFromSparseBloomFilterTest extends 
AbstractIndexExtractorTest {
 
     protected Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromUniqueHasherTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromUniqueHasherTest.java
index cb2b8f696..d35f435f0 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromUniqueHasherTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorFromUniqueHasherTest.java
@@ -16,7 +16,7 @@
  */
 package org.apache.commons.collections4.bloomfilter;
 
-public class IndexExtractorFromUniqueHasherTest extends 
AbstractIndexExtractorTest {
+class IndexExtractorFromUniqueHasherTest extends AbstractIndexExtractorTest {
 
     @Override
     protected IndexExtractor createEmptyExtractor() {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorTest.java
index 219875794..395caca93 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexExtractorTest.java
@@ -27,7 +27,7 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-public class IndexExtractorTest {
+class IndexExtractorTest {
 
     private static final class TestingBitMapExtractor implements 
BitMapExtractor {
         long[] values;
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexFilterTest.java
index 0e7adfb9b..3261f7335 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/IndexFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/IndexFilterTest.java
@@ -35,7 +35,7 @@ import org.junit.jupiter.params.provider.CsvSource;
 /**
  * Tests the Filter class.
  */
-public class IndexFilterTest {
+class IndexFilterTest {
 
     @ParameterizedTest
     @CsvSource({
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/LayerManagerTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/LayerManagerTest.java
index c14ac9b9b..fdfc220f3 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/LayerManagerTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/LayerManagerTest.java
@@ -38,7 +38,7 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-public class LayerManagerTest {
+class LayerManagerTest {
 
     private final Shape shape = Shape.fromKM(17, 72);
 
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/LayeredBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/LayeredBloomFilterTest.java
index 4797e603f..de5ba276c 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/LayeredBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/LayeredBloomFilterTest.java
@@ -35,7 +35,7 @@ import 
org.apache.commons.collections4.bloomfilter.LayerManager.Cleanup;
 import org.apache.commons.collections4.bloomfilter.LayerManager.ExtendCheck;
 import org.junit.jupiter.api.Test;
 
-public class LayeredBloomFilterTest extends 
AbstractBloomFilterTest<LayeredBloomFilter<?>> {
+class LayeredBloomFilterTest extends 
AbstractBloomFilterTest<LayeredBloomFilter<?>> {
 
     /**
      * A Predicate that advances after a quantum of time.
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/SetOperationsTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/SetOperationsTest.java
index e048415d1..fc3782df1 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/SetOperationsTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/SetOperationsTest.java
@@ -26,7 +26,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Test {@link SetOperations}.
  */
-public class SetOperationsTest {
+class SetOperationsTest {
 
     private static void assertSymmetricOperation(final double expected, final 
ToDoubleBiFunction<BloomFilter, BloomFilter> operation,
             final BloomFilter filter1, final BloomFilter filter2) {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/ShapeTest.java 
b/src/test/java/org/apache/commons/collections4/bloomfilter/ShapeTest.java
index a82d7b82a..3b03b509a 100644
--- a/src/test/java/org/apache/commons/collections4/bloomfilter/ShapeTest.java
+++ b/src/test/java/org/apache/commons/collections4/bloomfilter/ShapeTest.java
@@ -29,7 +29,7 @@ import org.junit.jupiter.params.provider.CsvSource;
 /**
  * Tests the {@link Shape} class.
  */
-public class ShapeTest {
+class ShapeTest {
 
     /*
      * values from https://hur.st/bloomfilter/?n=5&p=.1&m=&k=
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/SimpleBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/SimpleBloomFilterTest.java
index 9dcb33a23..5f6375063 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/SimpleBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/SimpleBloomFilterTest.java
@@ -24,7 +24,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for the {@link SimpleBloomFilter}.
  */
-public class SimpleBloomFilterTest extends 
AbstractBloomFilterTest<SimpleBloomFilter> {
+class SimpleBloomFilterTest extends AbstractBloomFilterTest<SimpleBloomFilter> 
{
 
     @Override
     protected SimpleBloomFilter createEmptyFilter(final Shape shape) {
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/SparseBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/SparseBloomFilterTest.java
index ded7928f1..6321be535 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/SparseBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/SparseBloomFilterTest.java
@@ -25,7 +25,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for the {@link SparseBloomFilter}.
  */
-public class SparseBloomFilterTest extends 
AbstractBloomFilterTest<SparseBloomFilter> {
+class SparseBloomFilterTest extends AbstractBloomFilterTest<SparseBloomFilter> 
{
     @Override
     protected SparseBloomFilter createEmptyFilter(final Shape shape) {
         return new SparseBloomFilter(shape);
diff --git 
a/src/test/java/org/apache/commons/collections4/bloomfilter/WrappedBloomFilterTest.java
 
b/src/test/java/org/apache/commons/collections4/bloomfilter/WrappedBloomFilterTest.java
index 81cf4e1fe..e2e969645 100644
--- 
a/src/test/java/org/apache/commons/collections4/bloomfilter/WrappedBloomFilterTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/bloomfilter/WrappedBloomFilterTest.java
@@ -21,7 +21,7 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-public class WrappedBloomFilterTest extends 
AbstractBloomFilterTest<WrappedBloomFilter> {
+class WrappedBloomFilterTest extends 
AbstractBloomFilterTest<WrappedBloomFilter> {
 
     private static class Fixture extends WrappedBloomFilter {
 
diff --git 
a/src/test/java/org/apache/commons/collections4/collection/IndexedCollectionTest.java
 
b/src/test/java/org/apache/commons/collections4/collection/IndexedCollectionTest.java
index 8ddc8ff62..94a1b8a70 100644
--- 
a/src/test/java/org/apache/commons/collections4/collection/IndexedCollectionTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/collection/IndexedCollectionTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
  * {@link IndexedCollection} implementation.
  */
 @SuppressWarnings("boxing")
-public class IndexedCollectionTest extends AbstractCollectionTest<String> {
+class IndexedCollectionTest extends AbstractCollectionTest<String> {
 
     private static final class IntegerTransformer implements 
Transformer<String, Integer>, Serializable {
         private static final long serialVersionUID = 809439581555072949L;
diff --git 
a/src/test/java/org/apache/commons/collections4/collection/PredicatedCollectionBuilderTest.java
 
b/src/test/java/org/apache/commons/collections4/collection/PredicatedCollectionBuilderTest.java
index dbe643c7c..acbfd4aa2 100644
--- 
a/src/test/java/org/apache/commons/collections4/collection/PredicatedCollectionBuilderTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/collection/PredicatedCollectionBuilderTest.java
@@ -33,7 +33,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the PredicatedCollection.Builder class.
  */
-public class PredicatedCollectionBuilderTest {
+class PredicatedCollectionBuilderTest {
 
     private static final class OddPredicate implements Predicate<Integer> {
         @Override
diff --git 
a/src/test/java/org/apache/commons/collections4/comparators/BooleanComparatorTest.java
 
b/src/test/java/org/apache/commons/collections4/comparators/BooleanComparatorTest.java
index 77cf8e5b3..ea1ed2925 100644
--- 
a/src/test/java/org/apache/commons/collections4/comparators/BooleanComparatorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/comparators/BooleanComparatorTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
  * Tests for {@link BooleanComparator}.
  */
 @SuppressWarnings("boxing")
-public class BooleanComparatorTest extends AbstractComparatorTest<Boolean> {
+class BooleanComparatorTest extends AbstractComparatorTest<Boolean> {
 
     protected void allTests(final boolean trueFirst, final BooleanComparator 
comp) {
         orderIndependentTests(comp);
diff --git 
a/src/test/java/org/apache/commons/collections4/comparators/ComparableComparatorTest.java
 
b/src/test/java/org/apache/commons/collections4/comparators/ComparableComparatorTest.java
index 6e2196dae..493b8aa3f 100644
--- 
a/src/test/java/org/apache/commons/collections4/comparators/ComparableComparatorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/comparators/ComparableComparatorTest.java
@@ -24,7 +24,7 @@ import java.util.List;
  * Tests for ComparableComparator.
  */
 @SuppressWarnings("boxing")
-public class ComparableComparatorTest extends AbstractComparatorTest<Integer> {
+class ComparableComparatorTest extends AbstractComparatorTest<Integer> {
 
     @Override
     public List<Integer> getComparableObjectsOrdered() {
diff --git 
a/src/test/java/org/apache/commons/collections4/comparators/ComparatorChainTest.java
 
b/src/test/java/org/apache/commons/collections4/comparators/ComparatorChainTest.java
index 848b54b58..8020b7c4c 100644
--- 
a/src/test/java/org/apache/commons/collections4/comparators/ComparatorChainTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/comparators/ComparatorChainTest.java
@@ -31,14 +31,14 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for ComparatorChain.
  */
-public class ComparatorChainTest extends 
AbstractComparatorTest<ComparatorChainTest.PseudoRow> {
+class ComparatorChainTest extends 
AbstractComparatorTest<ComparatorChainTest.PseudoRow> {
 
     public static class ColumnComparator implements Comparator<PseudoRow>, 
Serializable {
         private static final long serialVersionUID = -2284880866328872105L;
 
         protected int colIndex;
 
-        public ColumnComparator(final int colIndex) {
+        ColumnComparator(final int colIndex) {
             this.colIndex = colIndex;
         }
 
@@ -66,7 +66,7 @@ public class ComparatorChainTest extends 
AbstractComparatorTest<ComparatorChainT
         private static final long serialVersionUID = 8085570439751032499L;
         public int[] cols = new int[3];
 
-        public PseudoRow(final int col1, final int col2, final int col3) {
+        PseudoRow(final int col1, final int col2, final int col3) {
             cols[0] = col1;
             cols[1] = col2;
             cols[2] = col3;
diff --git 
a/src/test/java/org/apache/commons/collections4/comparators/FixedOrderComparatorTest.java
 
b/src/test/java/org/apache/commons/collections4/comparators/FixedOrderComparatorTest.java
index 6a389417b..d9a1b187e 100644
--- 
a/src/test/java/org/apache/commons/collections4/comparators/FixedOrderComparatorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/comparators/FixedOrderComparatorTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Test class for FixedOrderComparator.
  */
-public class FixedOrderComparatorTest extends AbstractComparatorTest<String> {
+class FixedOrderComparatorTest extends AbstractComparatorTest<String> {
 
     @Nested
     class Equals {
diff --git 
a/src/test/java/org/apache/commons/collections4/comparators/ReverseComparatorTest.java
 
b/src/test/java/org/apache/commons/collections4/comparators/ReverseComparatorTest.java
index 18da5864d..a55e93dd7 100644
--- 
a/src/test/java/org/apache/commons/collections4/comparators/ReverseComparatorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/comparators/ReverseComparatorTest.java
@@ -32,7 +32,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for ReverseComparator.
  */
-public class ReverseComparatorTest extends AbstractComparatorTest<Integer> {
+class ReverseComparatorTest extends AbstractComparatorTest<Integer> {
 
     @Override
     public List<Integer> getComparableObjectsOrdered() {
diff --git 
a/src/test/java/org/apache/commons/collections4/comparators/TransformingComparatorTest.java
 
b/src/test/java/org/apache/commons/collections4/comparators/TransformingComparatorTest.java
index 83452f63b..6f95b46b6 100644
--- 
a/src/test/java/org/apache/commons/collections4/comparators/TransformingComparatorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/comparators/TransformingComparatorTest.java
@@ -30,7 +30,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Test class for TransformingComparator.
  */
-public class TransformingComparatorTest extends 
AbstractComparatorTest<Integer> {
+class TransformingComparatorTest extends AbstractComparatorTest<Integer> {
 
     @Override
     @SuppressWarnings("boxing") // OK in test code
diff --git 
a/src/test/java/org/apache/commons/collections4/functors/AllPredicateTest.java 
b/src/test/java/org/apache/commons/collections4/functors/AllPredicateTest.java
index a55f5a84c..b052c08fc 100644
--- 
a/src/test/java/org/apache/commons/collections4/functors/AllPredicateTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/functors/AllPredicateTest.java
@@ -29,12 +29,12 @@ import org.junit.jupiter.api.Test;
  * Tests the org.apache.commons.collections.functors.AllPredicate class.
  */
 @SuppressWarnings("boxing")
-public class AllPredicateTest extends AbstractAnyAllOnePredicateTest<Integer> {
+class AllPredicateTest extends AbstractAnyAllOnePredicateTest<Integer> {
 
     /**
      * Creates a new {@code TestAllPredicate}.
      */
-    public AllPredicateTest() {
+    AllPredicateTest() {
         super(42);
     }
 
diff --git 
a/src/test/java/org/apache/commons/collections4/functors/CatchAndRethrowClosureTest.java
 
b/src/test/java/org/apache/commons/collections4/functors/CatchAndRethrowClosureTest.java
index 495db9dde..b9aa5c6cd 100644
--- 
a/src/test/java/org/apache/commons/collections4/functors/CatchAndRethrowClosureTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/functors/CatchAndRethrowClosureTest.java
@@ -29,7 +29,7 @@ import org.apache.commons.collections4.FunctorException;
 import org.junit.jupiter.api.DynamicTest;
 import org.junit.jupiter.api.TestFactory;
 
-public class CatchAndRethrowClosureTest extends AbstractClosureTest {
+class CatchAndRethrowClosureTest extends AbstractClosureTest {
 
     private static <T> Closure<T> generateIOExceptionClosure() {
         return new CatchAndRethrowClosure<T>() {
diff --git 
a/src/test/java/org/apache/commons/collections4/functors/ComparatorPredicateTest.java
 
b/src/test/java/org/apache/commons/collections4/functors/ComparatorPredicateTest.java
index dd23de9b8..83349ad82 100644
--- 
a/src/test/java/org/apache/commons/collections4/functors/ComparatorPredicateTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/functors/ComparatorPredicateTest.java
@@ -22,7 +22,7 @@ import org.apache.commons.collections4.Predicate;
 import org.apache.commons.collections4.functors.ComparatorPredicate.Criterion;
 import org.junit.jupiter.api.Test;
 
-public class ComparatorPredicateTest extends AbstractPredicateTest {
+class ComparatorPredicateTest extends AbstractPredicateTest {
     private static final class TestComparator<T extends Comparable<T>> 
implements Comparator<T> {
         @Override
         public int compare(final T first, final T second) {
diff --git 
a/src/test/java/org/apache/commons/collections4/functors/EqualPredicateTest.java
 
b/src/test/java/org/apache/commons/collections4/functors/EqualPredicateTest.java
index 36ec3e389..8d8cd5048 100644
--- 
a/src/test/java/org/apache/commons/collections4/functors/EqualPredicateTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/functors/EqualPredicateTest.java
@@ -21,11 +21,11 @@ import static org.junit.jupiter.api.Assertions.assertSame;
 import org.apache.commons.collections4.Predicate;
 import org.junit.jupiter.api.Test;
 
-public class EqualPredicateTest extends AbstractPredicateTest {
+class EqualPredicateTest extends AbstractPredicateTest {
     public static class EqualsTestObject {
         private final boolean b;
 
-        public EqualsTestObject(final boolean b) {
+        EqualsTestObject(final boolean b) {
             this.b = b;
         }
 
diff --git 
a/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java 
b/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java
index b2735936d..caf7c8aec 100644
--- 
a/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/functors/NullPredicateTest.java
@@ -21,7 +21,7 @@ import static org.junit.jupiter.api.Assertions.assertSame;
 import org.apache.commons.collections4.Predicate;
 import org.junit.jupiter.api.Test;
 
-public class NullPredicateTest extends AbstractPredicateTest {
+class NullPredicateTest extends AbstractPredicateTest {
     @Override
     protected Predicate<?> generatePredicate() {
         return NullPredicate.nullPredicate();
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/CartesianProductIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/CartesianProductIteratorTest.java
index 22953a621..b71fea937 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/CartesianProductIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/CartesianProductIteratorTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Test class for {@link CartesianProductIterator}.
  */
-public class CartesianProductIteratorTest extends 
AbstractIteratorTest<List<Character>> {
+class CartesianProductIteratorTest extends 
AbstractIteratorTest<List<Character>> {
 
     private List<Character> letters;
     private List<Character> numbers;
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/CollatingIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/CollatingIteratorTest.java
index cc0382de0..b7dcca59c 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/CollatingIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/CollatingIteratorTest.java
@@ -36,7 +36,7 @@ import org.junit.jupiter.api.Test;
  * Unit test suite for {@link CollatingIterator}.
  */
 @SuppressWarnings("boxing")
-public class CollatingIteratorTest extends AbstractIteratorTest<Integer> {
+class CollatingIteratorTest extends AbstractIteratorTest<Integer> {
 
     private Comparator<Integer> comparator;
 
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/ExtendedIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/ExtendedIteratorTest.java
index 7632d10aa..612bb6062 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/ExtendedIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/ExtendedIteratorTest.java
@@ -31,7 +31,7 @@ import java.util.function.Predicate;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-public class ExtendedIteratorTest {
+class ExtendedIteratorTest {
     /**
      * Collection of {@link Integer}s
      */
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/FilterListIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/FilterListIteratorTest.java
index e77d968a5..8b6ddc99d 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/FilterListIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/FilterListIteratorTest.java
@@ -37,7 +37,7 @@ import org.junit.jupiter.api.Test;
  * Tests the FilterListIterator class.
  */
 @SuppressWarnings("boxing")
-public class FilterListIteratorTest {
+class FilterListIteratorTest {
 
     private ArrayList<Integer> list;
     private ArrayList<Integer> odds;
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/IteratorEnumerationTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/IteratorEnumerationTest.java
index 822ff8b78..0f36caa21 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/IteratorEnumerationTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/IteratorEnumerationTest.java
@@ -30,7 +30,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the IteratorEnumeration.
  */
-public class IteratorEnumerationTest {
+class IteratorEnumerationTest {
 
     @Test
     void testEnumeration() {
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/IteratorIterableTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/IteratorIterableTest.java
index 8803b9fc5..badeaefe4 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/IteratorIterableTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/IteratorIterableTest.java
@@ -30,7 +30,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for IteratorIterable.
  */
-public class IteratorIterableTest extends BulkTest {
+class IteratorIterableTest extends BulkTest {
 
     private Iterator<Integer> createIterator() {
         final List<Integer> list = new ArrayList<>();
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/LazyIteratorChainTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/LazyIteratorChainTest.java
index 832ea8927..78be4bd71 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/LazyIteratorChainTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/LazyIteratorChainTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the LazyIteratorChain class.
  */
-public class LazyIteratorChainTest extends AbstractIteratorTest<String> {
+class LazyIteratorChainTest extends AbstractIteratorTest<String> {
 
     protected String[] testArray = {
         "One", "Two", "Three", "Four", "Five", "Six"
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/LoopingIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/LoopingIteratorTest.java
index 7adb9e21d..dfb28e2c0 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/LoopingIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/LoopingIteratorTest.java
@@ -31,7 +31,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the LoopingIterator class.
  */
-public class LoopingIteratorTest {
+class LoopingIteratorTest {
 
     /**
      * Tests constructor exception.
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/LoopingListIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/LoopingListIteratorTest.java
index 9f458fc8f..e9530be72 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/LoopingListIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/LoopingListIteratorTest.java
@@ -31,7 +31,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests the LoopingListIterator class.
  */
-public class LoopingListIteratorTest {
+class LoopingListIteratorTest {
 
     /**
      * Tests the add method.
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/NodeListIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/NodeListIteratorTest.java
index 57993434d..05f261ff2 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/NodeListIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/NodeListIteratorTest.java
@@ -33,7 +33,7 @@ import org.w3c.dom.Text;
 /**
  * Tests the NodeListIterator.
  */
-public class NodeListIteratorTest extends AbstractIteratorTest<Node> {
+class NodeListIteratorTest extends AbstractIteratorTest<Node> {
 
     // Node array to be filled with mocked Node instances
     private Node[] nodes;
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/ObjectGraphIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/ObjectGraphIteratorTest.java
index 8c2ffef13..137671978 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/ObjectGraphIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/ObjectGraphIteratorTest.java
@@ -35,7 +35,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Testcase.
  */
-public class ObjectGraphIteratorTest extends AbstractIteratorTest<Object> {
+class ObjectGraphIteratorTest extends AbstractIteratorTest<Object> {
 
     static class Branch {
 
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/PermutationIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/PermutationIteratorTest.java
index 2d01ade68..8c6068651 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/PermutationIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/PermutationIteratorTest.java
@@ -35,7 +35,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Test class for PermutationIterator.
  */
-public class PermutationIteratorTest extends 
AbstractIteratorTest<List<Character>> {
+class PermutationIteratorTest extends AbstractIteratorTest<List<Character>> {
 
     @SuppressWarnings("boxing") // OK in test code
     protected Character[] testArray = { 'A', 'B', 'C' };
diff --git 
a/src/test/java/org/apache/commons/collections4/iterators/ZippingIteratorTest.java
 
b/src/test/java/org/apache/commons/collections4/iterators/ZippingIteratorTest.java
index c33c4e6d5..ed8721696 100644
--- 
a/src/test/java/org/apache/commons/collections4/iterators/ZippingIteratorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/iterators/ZippingIteratorTest.java
@@ -30,7 +30,7 @@ import org.junit.jupiter.api.Test;
  * Unit test suite for {@link ZippingIterator}.
  */
 @SuppressWarnings("boxing")
-public class ZippingIteratorTest extends AbstractIteratorTest<Integer> {
+class ZippingIteratorTest extends AbstractIteratorTest<Integer> {
 
     private ArrayList<Integer> evens;
 
diff --git 
a/src/test/java/org/apache/commons/collections4/keyvalue/MultiKeyTest.java 
b/src/test/java/org/apache/commons/collections4/keyvalue/MultiKeyTest.java
index a27474726..ed150de3a 100644
--- a/src/test/java/org/apache/commons/collections4/keyvalue/MultiKeyTest.java
+++ b/src/test/java/org/apache/commons/collections4/keyvalue/MultiKeyTest.java
@@ -45,7 +45,7 @@ import org.junit.jupiter.api.TestFactory;
 /**
  * Tests for {@link org.apache.commons.collections4.keyvalue.MultiKey}.
  */
-public class MultiKeyTest {
+class MultiKeyTest {
 
     static class DerivedMultiKey<T> extends MultiKey<T> {
 
diff --git 
a/src/test/java/org/apache/commons/collections4/list/Collections701Test.java 
b/src/test/java/org/apache/commons/collections4/list/Collections701Test.java
index 0ac86c26c..6b4925560 100644
--- a/src/test/java/org/apache/commons/collections4/list/Collections701Test.java
+++ b/src/test/java/org/apache/commons/collections4/list/Collections701Test.java
@@ -28,7 +28,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests for COLLECTIONS-701.
  */
-public class Collections701Test {
+class Collections701Test {
 
     @Test
     void testArrayList() {
diff --git 
a/src/test/java/org/apache/commons/collections4/list/LazyListTest.java 
b/src/test/java/org/apache/commons/collections4/list/LazyListTest.java
index c78bfec01..d73debad3 100644
--- a/src/test/java/org/apache/commons/collections4/list/LazyListTest.java
+++ b/src/test/java/org/apache/commons/collections4/list/LazyListTest.java
@@ -31,7 +31,7 @@ import org.apache.commons.collections4.Factory;
 import org.apache.commons.collections4.Transformer;
 import org.junit.jupiter.api.Test;
 
-public class LazyListTest extends AbstractObjectTest {
+class LazyListTest extends AbstractObjectTest {
 
     @Override
     public Object makeObject() {
diff --git 
a/src/test/java/org/apache/commons/collections4/map/ConcurrentReferenceHashMapTest.java
 
b/src/test/java/org/apache/commons/collections4/map/ConcurrentReferenceHashMapTest.java
index 7445321d8..60f2a7e31 100644
--- 
a/src/test/java/org/apache/commons/collections4/map/ConcurrentReferenceHashMapTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/map/ConcurrentReferenceHashMapTest.java
@@ -31,7 +31,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests {@link ConcurrentReferenceHashMap}.
  */
-public class ConcurrentReferenceHashMapTest {
+class ConcurrentReferenceHashMapTest {
 
     @Test
     void testBuilderAll() {
diff --git 
a/src/test/java/org/apache/commons/collections4/map/MultiKeyMapCompress672Test.java
 
b/src/test/java/org/apache/commons/collections4/map/MultiKeyMapCompress672Test.java
index 619690d54..368e0e376 100644
--- 
a/src/test/java/org/apache/commons/collections4/map/MultiKeyMapCompress672Test.java
+++ 
b/src/test/java/org/apache/commons/collections4/map/MultiKeyMapCompress672Test.java
@@ -37,7 +37,7 @@ import org.junit.jupiter.api.Test;
  * </ol>
  * COUNTER CLAIM: The class is documented to use MultiKey which documents key 
elements as "The keys should be immutable".
  */
-public class MultiKeyMapCompress672Test {
+class MultiKeyMapCompress672Test {
 
     private static final class KeyFixture {
 
diff --git 
a/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java
 
b/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java
index 10d42c593..81b819557 100644
--- 
a/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java
@@ -41,7 +41,7 @@ import org.apache.commons.lang3.ArrayUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.junit.jupiter.api.Test;
 
-public class EmptyPropertiesTest {
+class EmptyPropertiesTest {
 
     /**
      * Returns the first line from multi-lined string separated by a line 
separator character
diff --git 
a/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesFactoryTest.java
 
b/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesFactoryTest.java
index 88a0b60eb..14131fce3 100644
--- 
a/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesFactoryTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesFactoryTest.java
@@ -23,9 +23,9 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests {@link OrderedPropertiesFactory}.
  */
-public class OrderedPropertiesFactoryTest extends 
AbstractPropertiesFactoryTest<OrderedProperties> {
+class OrderedPropertiesFactoryTest extends 
AbstractPropertiesFactoryTest<OrderedProperties> {
 
-    public OrderedPropertiesFactoryTest() {
+    OrderedPropertiesFactoryTest() {
         super(OrderedPropertiesFactory.INSTANCE);
     }
 
diff --git 
a/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesTest.java
 
b/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesTest.java
index 7febeb51f..b463e60e6 100644
--- 
a/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/properties/OrderedPropertiesTest.java
@@ -34,7 +34,7 @@ import org.junit.jupiter.api.Test;
 /**
  * Tests {@link OrderedProperties}.
  */
-public class OrderedPropertiesTest {
+class OrderedPropertiesTest {
 
     private void assertAscendingOrder(final OrderedProperties 
orderedProperties) {
         final int first = 1;
diff --git 
a/src/test/java/org/apache/commons/collections4/properties/PropertiesFactoryTest.java
 
b/src/test/java/org/apache/commons/collections4/properties/PropertiesFactoryTest.java
index a2b0e70f4..c91ab3ab9 100644
--- 
a/src/test/java/org/apache/commons/collections4/properties/PropertiesFactoryTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/properties/PropertiesFactoryTest.java
@@ -23,9 +23,9 @@ import java.util.Properties;
 
 import org.junit.jupiter.api.Test;
 
-public class PropertiesFactoryTest extends 
AbstractPropertiesFactoryTest<Properties> {
+class PropertiesFactoryTest extends AbstractPropertiesFactoryTest<Properties> {
 
-    public PropertiesFactoryTest() {
+    PropertiesFactoryTest() {
         super(PropertiesFactory.INSTANCE);
     }
 
diff --git 
a/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesFactoryTest.java
 
b/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesFactoryTest.java
index 0b112a587..c422280ab 100644
--- 
a/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesFactoryTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesFactoryTest.java
@@ -20,9 +20,9 @@ import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 import org.junit.jupiter.api.Test;
 
-public class SortedPropertiesFactoryTest extends 
AbstractPropertiesFactoryTest<SortedProperties> {
+class SortedPropertiesFactoryTest extends 
AbstractPropertiesFactoryTest<SortedProperties> {
 
-    public SortedPropertiesFactoryTest() {
+    SortedPropertiesFactoryTest() {
         super(SortedPropertiesFactory.INSTANCE);
     }
 
diff --git 
a/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesTest.java
 
b/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesTest.java
index c4897b909..9682f208a 100644
--- 
a/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/properties/SortedPropertiesTest.java
@@ -24,7 +24,7 @@ import java.util.Map;
 
 import org.junit.jupiter.api.Test;
 
-public class SortedPropertiesTest {
+class SortedPropertiesTest {
 
     @Test
     void testEntrySet() {
diff --git 
a/src/test/java/org/apache/commons/collections4/sequence/SequencesComparatorTest.java
 
b/src/test/java/org/apache/commons/collections4/sequence/SequencesComparatorTest.java
index c9a6dbc9f..48d057139 100644
--- 
a/src/test/java/org/apache/commons/collections4/sequence/SequencesComparatorTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/sequence/SequencesComparatorTest.java
@@ -29,7 +29,7 @@ import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
-public class SequencesComparatorTest {
+class SequencesComparatorTest {
 
     private static final class ExecutionVisitor<T> implements 
CommandVisitor<T> {
 
diff --git 
a/src/test/java/org/apache/commons/collections4/splitmap/TransformedSplitMapTest.java
 
b/src/test/java/org/apache/commons/collections4/splitmap/TransformedSplitMapTest.java
index 6c9b3bd30..ddc7b50b5 100644
--- 
a/src/test/java/org/apache/commons/collections4/splitmap/TransformedSplitMapTest.java
+++ 
b/src/test/java/org/apache/commons/collections4/splitmap/TransformedSplitMapTest.java
@@ -39,7 +39,7 @@ import org.junit.jupiter.api.Test;
  * Tests for {@link TransformedSplitMap}
  */
 @SuppressWarnings("boxing")
-public class TransformedSplitMapTest extends BulkTest {
+class TransformedSplitMapTest extends BulkTest {
 
     private final Transformer<Integer, String> intToString = String::valueOf;
 

Reply via email to