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michaelo pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/maven-resolver.git

commit 0bcf62366b38a8da617608369a13c20d7fba210b
Author: Arturo Bernal <[email protected]>
AuthorDate: Thu Sep 2 17:40:41 2021 +0200

    [MRESOLVER-198] Replace assert by simpler but equivalent calls
    
    This closes #117
---
 .../aether/DefaultRepositorySystemSessionTest.java |  7 +-
 .../connector/basic/ChecksumValidatorTest.java     |  4 +-
 .../internal/impl/DefaultArtifactResolverTest.java |  4 +-
 .../internal/impl/DefaultMetadataResolverTest.java |  2 +-
 .../impl/DefaultRemoteRepositoryManagerTest.java   |  2 +-
 .../impl/DefaultTrackingFileManagerTest.java       |  3 -
 .../impl/DefaultUpdateCheckManagerTest.java        | 96 +++++++++++-----------
 .../impl/DefaultUpdatePolicyAnalyzerTest.java      | 44 +++++-----
 .../impl/EnhancedLocalRepositoryManagerTest.java   |  4 +-
 .../impl/Maven2RepositoryLayoutFactoryTest.java    |  1 -
 .../collect/DefaultDependencyCollectorTest.java    |  4 +-
 .../test/util/DependencyGraphParserTest.java       |  2 +-
 .../test/util/IniArtifactDataReaderTest.java       |  8 +-
 .../test/util/IniArtifactDescriptorReaderTest.java |  8 +-
 .../internal/test/util/NodeDefinitionTest.java     | 52 ++++++------
 .../org/eclipse/aether/util/ChecksumUtilTest.java  |  2 +-
 .../org/eclipse/aether/util/ConfigUtilsTest.java   | 18 ++--
 .../aether/util/artifact/ArtifactIdUtilsTest.java  | 94 ++++++++++-----------
 .../util/filter/ExclusionDependencyFilterTest.java |  1 -
 .../PatternExclusionsDependencyFilterTest.java     | 82 ++++++++----------
 .../PatternInclusionsDependencyFilterTest.java     | 80 ++++++++----------
 .../util/graph/transformer/ConflictMarkerTest.java |  2 +-
 .../transformer/SimpleOptionalitySelectorTest.java | 14 ++--
 .../graph/versions/ChainedVersionFilterTest.java   |  6 +-
 .../ContextualSnapshotVersionFilterTest.java       |  6 +-
 .../graph/versions/HighestVersionFilterTest.java   |  6 +-
 .../graph/versions/SnapshotVersionFilterTest.java  |  6 +-
 .../repository/ComponentAuthenticationTest.java    | 10 +--
 .../util/repository/SecretAuthenticationTest.java  | 10 +--
 .../util/repository/StringAuthenticationTest.java  | 10 +--
 .../aether/util/version/AbstractVersionTest.java   | 14 ++--
 .../util/version/GenericVersionSchemeTest.java     |  2 +-
 32 files changed, 286 insertions(+), 318 deletions(-)

diff --git 
a/maven-resolver-api/src/test/java/org/eclipse/aether/DefaultRepositorySystemSessionTest.java
 
b/maven-resolver-api/src/test/java/org/eclipse/aether/DefaultRepositorySystemSessionTest.java
index b75c01b..ccca26a 100644
--- 
a/maven-resolver-api/src/test/java/org/eclipse/aether/DefaultRepositorySystemSessionTest.java
+++ 
b/maven-resolver-api/src/test/java/org/eclipse/aether/DefaultRepositorySystemSessionTest.java
@@ -19,6 +19,7 @@ package org.eclipse.aether;
  * under the License.
  */
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.fail;
 
@@ -86,9 +87,9 @@ public class DefaultRepositorySystemSessionTest
         session2.setSystemProperty( "key", "test" );
         session2.setConfigProperty( "key", "test" );
 
-        assertEquals( null, session1.getUserProperties().get( "key" ) );
-        assertEquals( null, session1.getSystemProperties().get( "key" ) );
-        assertEquals( null, session1.getConfigProperties().get( "key" ) );
+        assertNull( session1.getUserProperties().get( "key" ) );
+        assertNull( session1.getSystemProperties().get( "key" ) );
+        assertNull( session1.getConfigProperties().get( "key" ) );
     }
 
     @Test
diff --git 
a/maven-resolver-connector-basic/src/test/java/org/eclipse/aether/connector/basic/ChecksumValidatorTest.java
 
b/maven-resolver-connector-basic/src/test/java/org/eclipse/aether/connector/basic/ChecksumValidatorTest.java
index 80d6173..c0d1467 100644
--- 
a/maven-resolver-connector-basic/src/test/java/org/eclipse/aether/connector/basic/ChecksumValidatorTest.java
+++ 
b/maven-resolver-connector-basic/src/test/java/org/eclipse/aether/connector/basic/ChecksumValidatorTest.java
@@ -367,7 +367,7 @@ public class ChecksumValidatorTest
     {
         policy.tolerateFailure = true;
         ChecksumValidator validator = newValidator( SHA1 );
-        assertEquals( true, validator.handle( new ChecksumFailureException( 
"accept" ) ) );
+        assertTrue( validator.handle( new ChecksumFailureException( "accept" ) 
) );
         policy.assertCallbacks( "fail(accept)" );
     }
 
@@ -376,7 +376,7 @@ public class ChecksumValidatorTest
     {
         policy.tolerateFailure = false;
         ChecksumValidator validator = newValidator( SHA1 );
-        assertEquals( false, validator.handle( new ChecksumFailureException( 
"reject" ) ) );
+        assertFalse( validator.handle( new ChecksumFailureException( "reject" 
) ) );
         policy.assertCallbacks( "fail(reject)" );
     }
 
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultArtifactResolverTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultArtifactResolverTest.java
index 3c27f98..5723e7f 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultArtifactResolverTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultArtifactResolverTest.java
@@ -317,8 +317,8 @@ public class DefaultArtifactResolverTest
             for ( ArtifactResult result : e.getResults() )
             {
                 Throwable t = result.getExceptions().get( 0 );
-                assertEquals( t.toString(), true, t instanceof 
ArtifactNotFoundException );
-                assertEquals( t.toString(), true, t.getMessage().contains( 
"cached" ) );
+                assertTrue( t.toString(), t instanceof 
ArtifactNotFoundException );
+                assertTrue( t.toString(), t.getMessage().contains( "cached" ) 
);
             }
         }
     }
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultMetadataResolverTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultMetadataResolverTest.java
index d977a78..27fec64 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultMetadataResolverTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultMetadataResolverTest.java
@@ -182,7 +182,7 @@ public class DefaultMetadataResolverTest
         MetadataResult result = results.get( 0 );
 
         assertNotNull( result.getException() );
-        assertEquals( false, file.exists() );
+        assertFalse( file.exists() );
     }
 
     @Test
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultRemoteRepositoryManagerTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultRemoteRepositoryManagerTest.java
index f799ed9..3700aa4 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultRemoteRepositoryManagerTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultRemoteRepositoryManagerTest.java
@@ -102,7 +102,7 @@ public class DefaultRemoteRepositoryManagerTest
         .setSnapshotPolicy( snapshotPolicy ).setReleasePolicy( releasePolicy 
).build();
 
         RepositoryPolicy effectivePolicy = manager.getPolicy( session, repo, 
true, true );
-        assertEquals( true, effectivePolicy.isEnabled() );
+        assertTrue( effectivePolicy.isEnabled() );
         assertEquals( RepositoryPolicy.CHECKSUM_POLICY_IGNORE, 
effectivePolicy.getChecksumPolicy() );
         assertEquals( RepositoryPolicy.UPDATE_POLICY_ALWAYS, 
effectivePolicy.getUpdatePolicy() );
     }
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultTrackingFileManagerTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultTrackingFileManagerTest.java
index e3745aa..e6e2967 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultTrackingFileManagerTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultTrackingFileManagerTest.java
@@ -23,10 +23,7 @@ import static org.junit.Assert.*;
 
 import java.io.File;
 import java.nio.charset.StandardCharsets;
-import java.util.ArrayList;
-import java.util.Collections;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdateCheckManagerTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdateCheckManagerTest.java
index 111aca7..a30770e 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdateCheckManagerTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdateCheckManagerTest.java
@@ -193,7 +193,7 @@ public class DefaultUpdateCheckManagerTest
 
         // existing file, never checked before
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         // just checked
         manager.touchMetadata( session, check );
@@ -203,12 +203,12 @@ public class DefaultUpdateCheckManagerTest
         check.setPolicy( RepositoryPolicy.UPDATE_POLICY_INTERVAL + ":60" );
 
         manager.checkMetadata( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
 
         // no local file
         check.getFile().delete();
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
         // (! file.exists && ! repoKey) -> no timestamp
     }
 
@@ -225,7 +225,7 @@ public class DefaultUpdateCheckManagerTest
         // ! file.exists && updateRequired -> check in remote repo
         check.setLocalLastUpdated( lastUpdate );
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -243,7 +243,7 @@ public class DefaultUpdateCheckManagerTest
         // ! file.exists && ! updateRequired -> artifact not found in remote 
repo
         check = newMetadataCheck().setPolicy( 
RepositoryPolicy.UPDATE_POLICY_DAILY );
         manager.checkMetadata( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
         assertTrue( check.getException() instanceof MetadataNotFoundException 
);
         assertTrue( check.getException().isFromCache() );
     }
@@ -263,7 +263,7 @@ public class DefaultUpdateCheckManagerTest
         // ! file.exists && updateRequired -> check in remote repo
         check = newMetadataCheck().setPolicy( 
RepositoryPolicy.UPDATE_POLICY_DAILY );
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
         assertNull( check.getException() );
     }
 
@@ -283,7 +283,7 @@ public class DefaultUpdateCheckManagerTest
         check = newMetadataCheck();
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
false, true ) );
         manager.checkMetadata( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
         assertTrue( check.getException() instanceof MetadataTransferException 
);
         assertTrue( String.valueOf( check.getException() ), 
check.getException().getMessage().contains( "some error" ) );
         assertTrue( check.getException().isFromCache() );
@@ -305,7 +305,7 @@ public class DefaultUpdateCheckManagerTest
         check = newMetadataCheck();
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
false, false ) );
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
         assertNull( check.getException() );
     }
 
@@ -317,13 +317,13 @@ public class DefaultUpdateCheckManagerTest
 
         // first check
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         manager.touchMetadata( session, check );
 
         // second check in same session
         manager.checkMetadata( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
     }
 
     @Test
@@ -335,7 +335,7 @@ public class DefaultUpdateCheckManagerTest
 
         session.setConfigProperty( 
DefaultUpdateCheckManager.CONFIG_PROP_SESSION_STATE, "bypass" );
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         resetSessionData( session );
         manager.touchMetadata( session, check );
@@ -343,12 +343,12 @@ public class DefaultUpdateCheckManagerTest
         // TODO This will be changed to 'enabled' in a future version
         session.setConfigProperty( 
DefaultUpdateCheckManager.CONFIG_PROP_SESSION_STATE, "true" );
         manager.checkMetadata( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
 
         // TODO This will be changed to 'disabled' in a future version
         session.setConfigProperty( 
DefaultUpdateCheckManager.CONFIG_PROP_SESSION_STATE, "false" );
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -360,14 +360,14 @@ public class DefaultUpdateCheckManagerTest
 
         // first check
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         // first touch, without exception
         manager.touchMetadata( session, check );
 
         // another check in same session
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         // another touch, with exception
         check.setException( new MetadataNotFoundException( check.getItem(), 
check.getRepository() ) );
@@ -375,7 +375,7 @@ public class DefaultUpdateCheckManagerTest
 
         // another check in same session
         manager.checkMetadata( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
     }
 
     @Test
@@ -387,14 +387,14 @@ public class DefaultUpdateCheckManagerTest
 
         // first check
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         manager.touchMetadata( session, check );
 
         // second check in same session but for repo with different id
         check.setRepository( new RemoteRepository.Builder( 
check.getRepository() ).setId( "check" ).build() );
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -405,10 +405,10 @@ public class DefaultUpdateCheckManagerTest
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
true, false ) );
 
         check.getFile().delete();
-        assertEquals( check.getFile().getAbsolutePath(), false, 
check.getFile().exists() );
+        assertFalse( check.getFile().getAbsolutePath(), 
check.getFile().exists() );
 
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -424,7 +424,7 @@ public class DefaultUpdateCheckManagerTest
         check.setFileValid( false );
 
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -437,10 +437,10 @@ public class DefaultUpdateCheckManagerTest
         resetSessionData( session );
 
         check.getFile().delete();
-        assertEquals( check.getFile().getAbsolutePath(), false, 
check.getFile().exists() );
+        assertFalse( check.getFile().getAbsolutePath(), 
check.getFile().exists() );
 
         manager.checkMetadata( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -451,7 +451,7 @@ public class DefaultUpdateCheckManagerTest
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
true, false ) );
 
         manager.checkMetadata( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
     }
 
     @Test( expected = NullPointerException.class )
@@ -533,7 +533,7 @@ public class DefaultUpdateCheckManagerTest
 
         // never checked before
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         // just checked
         check.setLocalLastUpdated( 0L );
@@ -542,13 +542,13 @@ public class DefaultUpdateCheckManagerTest
         lastUpdate = check.getFile().lastModified();
 
         manager.checkArtifact( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
 
         // no local file, no repo timestamp
         check.setLocalLastUpdated( 0L );
         check.getFile().delete();
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -562,7 +562,7 @@ public class DefaultUpdateCheckManagerTest
         // ! file.exists && updateRequired -> check in remote repo
         check.setLocalLastUpdated( lastUpdate );
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -579,7 +579,7 @@ public class DefaultUpdateCheckManagerTest
         // ! file.exists && ! updateRequired -> artifact not found in remote 
repo
         check = newArtifactCheck().setPolicy( 
RepositoryPolicy.UPDATE_POLICY_DAILY );
         manager.checkArtifact( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
         assertTrue( check.getException() instanceof ArtifactNotFoundException 
);
         assertTrue( check.getException().isFromCache() );
     }
@@ -598,7 +598,7 @@ public class DefaultUpdateCheckManagerTest
         // ! file.exists && updateRequired -> check in remote repo
         check = newArtifactCheck().setPolicy( 
RepositoryPolicy.UPDATE_POLICY_DAILY );
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
         assertNull( check.getException() );
     }
 
@@ -617,7 +617,7 @@ public class DefaultUpdateCheckManagerTest
         check = newArtifactCheck();
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
false, true ) );
         manager.checkArtifact( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
         assertTrue( check.getException() instanceof ArtifactTransferException 
);
         assertTrue( check.getException().isFromCache() );
     }
@@ -637,7 +637,7 @@ public class DefaultUpdateCheckManagerTest
         check = newArtifactCheck();
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
false, false ) );
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
         assertNull( check.getException() );
     }
 
@@ -649,13 +649,13 @@ public class DefaultUpdateCheckManagerTest
 
         // first check
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         manager.touchArtifact( session, check );
 
         // second check in same session
         manager.checkArtifact( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
     }
 
     @Test
@@ -667,18 +667,18 @@ public class DefaultUpdateCheckManagerTest
 
         session.setConfigProperty( 
DefaultUpdateCheckManager.CONFIG_PROP_SESSION_STATE, "bypass" );
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         resetSessionData( session );
         manager.touchArtifact( session, check );
 
         session.setConfigProperty( 
DefaultUpdateCheckManager.CONFIG_PROP_SESSION_STATE, "true" );
         manager.checkArtifact( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
 
         session.setConfigProperty( 
DefaultUpdateCheckManager.CONFIG_PROP_SESSION_STATE, "false" );
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -690,14 +690,14 @@ public class DefaultUpdateCheckManagerTest
 
         // first check
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         // first touch, without exception
         manager.touchArtifact( session, check );
 
         // another check in same session
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         // another touch, with exception
         check.setException( new ArtifactNotFoundException( check.getItem(), 
check.getRepository() ) );
@@ -705,7 +705,7 @@ public class DefaultUpdateCheckManagerTest
 
         // another check in same session
         manager.checkArtifact( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
     }
 
     @Test
@@ -716,14 +716,14 @@ public class DefaultUpdateCheckManagerTest
 
         // first check
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
 
         manager.touchArtifact( session, check );
 
         // second check in same session but for repo with different id
         check.setRepository( new RemoteRepository.Builder( 
check.getRepository() ).setId( "check" ).build() );
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -734,10 +734,10 @@ public class DefaultUpdateCheckManagerTest
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
true, false ) );
 
         check.getFile().delete();
-        assertEquals( check.getFile().getAbsolutePath(), false, 
check.getFile().exists() );
+        assertFalse( check.getFile().getAbsolutePath(), 
check.getFile().exists() );
 
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -753,7 +753,7 @@ public class DefaultUpdateCheckManagerTest
         check.setFileValid( false );
 
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -766,10 +766,10 @@ public class DefaultUpdateCheckManagerTest
         resetSessionData( session );
 
         check.getFile().delete();
-        assertEquals( check.getFile().getAbsolutePath(), false, 
check.getFile().exists() );
+        assertFalse( check.getFile().getAbsolutePath(), 
check.getFile().exists() );
 
         manager.checkArtifact( session, check );
-        assertEquals( true, check.isRequired() );
+        assertTrue( check.isRequired() );
     }
 
     @Test
@@ -780,7 +780,7 @@ public class DefaultUpdateCheckManagerTest
         session.setResolutionErrorPolicy( new SimpleResolutionErrorPolicy( 
true, false ) );
 
         manager.checkArtifact( session, check );
-        assertEquals( false, check.isRequired() );
+        assertFalse( check.isRequired() );
     }
 
 }
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdatePolicyAnalyzerTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdatePolicyAnalyzerTest.java
index 58c3e8c..857d3cc 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdatePolicyAnalyzerTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/DefaultUpdatePolicyAnalyzerTest.java
@@ -55,22 +55,22 @@ public class DefaultUpdatePolicyAnalyzerTest
     public void testIsUpdateRequired_PolicyNever()
     {
         String policy = RepositoryPolicy.UPDATE_POLICY_NEVER;
-        assertEquals( false, analyzer.isUpdatedRequired( session, 
Long.MIN_VALUE, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, 
Long.MAX_VALUE, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, 0, policy ) 
);
-        assertEquals( false, analyzer.isUpdatedRequired( session, 1, policy ) 
);
-        assertEquals( false, analyzer.isUpdatedRequired( session, now() - 
604800000, policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, Long.MIN_VALUE, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, Long.MAX_VALUE, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, 0, policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, 1, policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, now() - 604800000, 
policy ) );
     }
 
     @Test
     public void testIsUpdateRequired_PolicyAlways()
     {
         String policy = RepositoryPolicy.UPDATE_POLICY_ALWAYS;
-        assertEquals( true, analyzer.isUpdatedRequired( session, 
Long.MIN_VALUE, policy ) );
-        assertEquals( true, analyzer.isUpdatedRequired( session, 
Long.MAX_VALUE, policy ) );
-        assertEquals( true, analyzer.isUpdatedRequired( session, 0, policy ) );
-        assertEquals( true, analyzer.isUpdatedRequired( session, 1, policy ) );
-        assertEquals( true, analyzer.isUpdatedRequired( session, now() - 1000, 
policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, Long.MIN_VALUE, 
policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, Long.MAX_VALUE, 
policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, 0, policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, 1, policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, now() - 1000, policy 
) );
     }
 
     @Test
@@ -84,26 +84,26 @@ public class DefaultUpdatePolicyAnalyzerTest
         long localMidnight = cal.getTimeInMillis();
 
         String policy = RepositoryPolicy.UPDATE_POLICY_DAILY;
-        assertEquals( true, analyzer.isUpdatedRequired( session, 
Long.MIN_VALUE, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, 
Long.MAX_VALUE, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, 
localMidnight, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, 
localMidnight + 1, policy ) );
-        assertEquals( true, analyzer.isUpdatedRequired( session, localMidnight 
- 1, policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, Long.MIN_VALUE, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, Long.MAX_VALUE, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, localMidnight, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, localMidnight + 1, 
policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, localMidnight - 1, 
policy ) );
     }
 
     @Test
     public void testIsUpdateRequired_PolicyInterval()
     {
         String policy = RepositoryPolicy.UPDATE_POLICY_INTERVAL + ":5";
-        assertEquals( true, analyzer.isUpdatedRequired( session, 
Long.MIN_VALUE, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, 
Long.MAX_VALUE, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, now(), 
policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, now() - 5 - 
1, policy ) );
-        assertEquals( false, analyzer.isUpdatedRequired( session, now() - 1000 
* 5 - 1, policy ) );
-        assertEquals( true, analyzer.isUpdatedRequired( session, now() - 1000 
* 60 * 5 - 1, policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, Long.MIN_VALUE, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, Long.MAX_VALUE, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, now(), policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, now() - 5 - 1, 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, now() - 1000 * 5 - 
1, policy ) );
+        assertTrue( analyzer.isUpdatedRequired( session, now() - 1000 * 60 * 5 
- 1, policy ) );
 
         policy = RepositoryPolicy.UPDATE_POLICY_INTERVAL + ":invalid";
-        assertEquals( false, analyzer.isUpdatedRequired( session, now(), 
policy ) );
+        assertFalse( analyzer.isUpdatedRequired( session, now(), policy ) );
     }
 
     @Test
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/EnhancedLocalRepositoryManagerTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/EnhancedLocalRepositoryManagerTest.java
index 1dae789..729b012 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/EnhancedLocalRepositoryManagerTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/EnhancedLocalRepositoryManagerTest.java
@@ -193,7 +193,7 @@ public class EnhancedLocalRepositoryManagerTest
         LocalArtifactRequest request = new LocalArtifactRequest( artifact, 
null, null );
         LocalArtifactResult result = manager.find( session, request );
         assertTrue( result.isAvailable() );
-        assertEquals( null, result.getRepository() );
+        assertNull( result.getRepository() );
 
         snapshot = snapshot.setVersion( snapshot.getBaseVersion() );
         addLocalArtifact( snapshot );
@@ -201,7 +201,7 @@ public class EnhancedLocalRepositoryManagerTest
         request = new LocalArtifactRequest( snapshot, null, null );
         result = manager.find( session, request );
         assertTrue( result.isAvailable() );
-        assertEquals( null, result.getRepository() );
+        assertNull( result.getRepository() );
     }
 
     @Test
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/Maven2RepositoryLayoutFactoryTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/Maven2RepositoryLayoutFactoryTest.java
index 82fd2ea..3720509 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/Maven2RepositoryLayoutFactoryTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/Maven2RepositoryLayoutFactoryTest.java
@@ -22,7 +22,6 @@ package org.eclipse.aether.internal.impl;
 import static org.junit.Assert.*;
 
 import java.net.URI;
-import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
 
diff --git 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/collect/DefaultDependencyCollectorTest.java
 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/collect/DefaultDependencyCollectorTest.java
index e8f2600..5d4c2aa 100644
--- 
a/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/collect/DefaultDependencyCollectorTest.java
+++ 
b/maven-resolver-impl/src/test/java/org/eclipse/aether/internal/impl/collect/DefaultDependencyCollectorTest.java
@@ -20,7 +20,7 @@ package org.eclipse.aether.internal.impl.collect;
  */
 import static java.util.Objects.requireNonNull;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertSame;
@@ -296,7 +296,7 @@ public class DefaultDependencyCollectorTest
         assertEquals( "1", a1.getArtifact().getVersion() );
         for ( DependencyNode child : a1.getChildren() )
         {
-            assertFalse( "1".equals( child.getArtifact().getVersion() ) );
+            assertNotEquals( "1", child.getArtifact().getVersion() );
         }
 
         assertEquals( 1, result.getCycles().size() );
diff --git 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/DependencyGraphParserTest.java
 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/DependencyGraphParserTest.java
index ac0a368..10f257b 100644
--- 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/DependencyGraphParserTest.java
+++ 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/DependencyGraphParserTest.java
@@ -293,7 +293,7 @@ public class DependencyGraphParserTest
         Dependency dependency = node.getDependency();
         assertNotNull( dependency );
         assertEquals( "compile", dependency.getScope() );
-        assertEquals( true, dependency.isOptional() );
+        assertTrue( dependency.isOptional() );
     }
 
 }
diff --git 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDataReaderTest.java
 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDataReaderTest.java
index 7afd8bc..4a50953 100644
--- 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDataReaderTest.java
+++ 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDataReaderTest.java
@@ -178,7 +178,7 @@ public class IniArtifactDataReaderTest
 
         Dependency dep = deps.get( 0 );
         assertEquals( "scope", dep.getScope() );
-        assertEquals( false, dep.isOptional() );
+        assertFalse( dep.isOptional() );
         assertEquals( 2, dep.getExclusions().size() );
         Iterator<Exclusion> it = dep.getExclusions().iterator();
         Exclusion excl = it.next();
@@ -196,7 +196,7 @@ public class IniArtifactDataReaderTest
 
         dep = deps.get( 1 );
         assertEquals( "scope", dep.getScope() );
-        assertEquals( true, dep.isOptional() );
+        assertTrue( dep.isOptional() );
         assertEquals( 0, dep.getExclusions().size() );
 
         art = dep.getArtifact();
@@ -207,7 +207,7 @@ public class IniArtifactDataReaderTest
 
         dep = deps.get( 2 );
         assertEquals( "scope", dep.getScope() );
-        assertEquals( true, dep.isOptional() );
+        assertTrue( dep.isOptional() );
         assertEquals( 0, dep.getExclusions().size() );
 
         art = dep.getArtifact();
@@ -218,7 +218,7 @@ public class IniArtifactDataReaderTest
 
         dep = deps.get( 3 );
         assertEquals( "scope5", dep.getScope() );
-        assertEquals( true, dep.isOptional() );
+        assertTrue( dep.isOptional() );
         assertEquals( 0, dep.getExclusions().size() );
 
         art = dep.getArtifact();
diff --git 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDescriptorReaderTest.java
 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDescriptorReaderTest.java
index 41ed12a..b98d8d8 100644
--- 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDescriptorReaderTest.java
+++ 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/IniArtifactDescriptorReaderTest.java
@@ -96,7 +96,7 @@ public class IniArtifactDescriptorReaderTest
 
         Dependency dep = deps.get( 0 );
         assertEquals( "scope", dep.getScope() );
-        assertEquals( false, dep.isOptional() );
+        assertFalse( dep.isOptional() );
         assertEquals( 2, dep.getExclusions().size() );
         Iterator<Exclusion> it = dep.getExclusions().iterator();
         Exclusion excl = it.next();
@@ -114,7 +114,7 @@ public class IniArtifactDescriptorReaderTest
 
         dep = deps.get( 1 );
         assertEquals( "scope", dep.getScope() );
-        assertEquals( true, dep.isOptional() );
+        assertTrue( dep.isOptional() );
         assertEquals( 0, dep.getExclusions().size() );
 
         art = dep.getArtifact();
@@ -125,7 +125,7 @@ public class IniArtifactDescriptorReaderTest
 
         dep = deps.get( 2 );
         assertEquals( "scope", dep.getScope() );
-        assertEquals( true, dep.isOptional() );
+        assertTrue( dep.isOptional() );
         assertEquals( 0, dep.getExclusions().size() );
 
         art = dep.getArtifact();
@@ -136,7 +136,7 @@ public class IniArtifactDescriptorReaderTest
 
         dep = deps.get( 3 );
         assertEquals( "scope5", dep.getScope() );
-        assertEquals( true, dep.isOptional() );
+        assertTrue( dep.isOptional() );
         assertEquals( 0, dep.getExclusions().size() );
 
         art = dep.getArtifact();
diff --git 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/NodeDefinitionTest.java
 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/NodeDefinitionTest.java
index 8f41a5a..769691a 100644
--- 
a/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/NodeDefinitionTest.java
+++ 
b/maven-resolver-test-util/src/test/java/org/eclipse/aether/internal/test/util/NodeDefinitionTest.java
@@ -35,7 +35,7 @@ public class NodeDefinitionTest
     {
         Pattern pattern = Pattern.compile( regex );
         Matcher matcher = pattern.matcher( text );
-        assertEquals( true, matcher.matches() );
+        assertTrue( matcher.matches() );
         assertTrue( groups.length + " vs " + matcher.groupCount(), 
groups.length <= matcher.groupCount() );
         for ( int i = 1; i <= groups.length; i++ )
         {
@@ -47,7 +47,7 @@ public class NodeDefinitionTest
     {
         Pattern pattern = Pattern.compile( regex );
         Matcher matcher = pattern.matcher( text );
-        assertEquals( false, matcher.matches() );
+        assertFalse( matcher.matches() );
     }
 
     @Test
@@ -103,45 +103,45 @@ public class NodeDefinitionTest
     public void testParsing_Node()
     {
         NodeDefinition desc = new NodeDefinition( "g:a:1" );
-        assertEquals( null, desc.reference );
+        assertNull( desc.reference );
         assertEquals( "g:a:1", desc.coords );
-        assertEquals( null, desc.range );
-        assertEquals( null, desc.premanagedVersion );
-        assertEquals( null, desc.scope );
-        assertEquals( null, desc.premanagedScope );
+        assertNull( desc.range );
+        assertNull( desc.premanagedVersion );
+        assertNull( desc.scope );
+        assertNull( desc.premanagedScope );
         assertEquals( false, desc.optional );
-        assertEquals( null, desc.properties );
-        assertEquals( null, desc.relocations );
-        assertEquals( null, desc.id );
+        assertNull( desc.properties );
+        assertNull( desc.relocations );
+        assertNull( desc.id );
 
         desc = new NodeDefinition( "gid1:aid1:ext1:ver1 scope1 !optional" );
-        assertEquals( null, desc.reference );
+        assertNull( desc.reference );
         assertEquals( "gid1:aid1:ext1:ver1", desc.coords );
-        assertEquals( null, desc.range );
-        assertEquals( null, desc.premanagedVersion );
+        assertNull( desc.range );
+        assertNull( desc.premanagedVersion );
         assertEquals( "scope1", desc.scope );
-        assertEquals( null, desc.premanagedScope );
+        assertNull( desc.premanagedScope );
         assertEquals( false, desc.optional );
-        assertEquals( null, desc.properties );
-        assertEquals( null, desc.relocations );
-        assertEquals( null, desc.id );
+        assertNull( desc.properties );
+        assertNull( desc.relocations );
+        assertNull( desc.id );
 
         desc = new NodeDefinition( "g:a:1 optional" );
-        assertEquals( null, desc.reference );
+        assertNull( desc.reference );
         assertEquals( "g:a:1", desc.coords );
-        assertEquals( null, desc.range );
-        assertEquals( null, desc.premanagedVersion );
-        assertEquals( null, desc.scope );
-        assertEquals( null, desc.premanagedScope );
+        assertNull( desc.range );
+        assertNull( desc.premanagedVersion );
+        assertNull( desc.scope );
+        assertNull( desc.premanagedScope );
         assertEquals( true, desc.optional );
-        assertEquals( null, desc.properties );
-        assertEquals( null, desc.relocations );
-        assertEquals( null, desc.id );
+        assertNull( desc.properties );
+        assertNull( desc.relocations );
+        assertNull( desc.id );
 
         desc =
             new NodeDefinition( "gid:aid:1(, 2)<[1, 3]" + " props = k:v" + " 
scope=c<r" + " optional"
                 + " relocations = g:a:v , g:a:1" + " (id)" );
-        assertEquals( null, desc.reference );
+        assertNull( desc.reference );
         assertEquals( "gid:aid:1", desc.coords );
         assertEquals( "(, 2)", desc.range );
         assertEquals( "[1, 3]", desc.premanagedVersion );
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/ChecksumUtilTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/ChecksumUtilTest.java
index 733c290..59082de 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/ChecksumUtilTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/ChecksumUtilTest.java
@@ -204,7 +204,7 @@ public class ChecksumUtilTest
     @Test
     public void testToHexString()
     {
-        assertEquals( null, ChecksumUtils.toHexString( null ) );
+        assertNull( ChecksumUtils.toHexString( null ) );
         assertEquals( "", ChecksumUtils.toHexString( new byte[] {} ) );
         assertEquals( "00", ChecksumUtils.toHexString( new byte[] { 0 } ) );
         assertEquals( "ff", ChecksumUtils.toHexString( new byte[] { -1 } ) );
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/ConfigUtilsTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/ConfigUtilsTest.java
index 440a7c1..0c49812 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/ConfigUtilsTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/ConfigUtilsTest.java
@@ -109,10 +109,10 @@ public class ConfigUtilsTest
     public void testGetBoolean_Default()
     {
         config.put( "no-boolean", new Object() );
-        assertEquals( true, ConfigUtils.getBoolean( config, true, "no-value" ) 
);
-        assertEquals( false, ConfigUtils.getBoolean( config, false, "no-value" 
) );
-        assertEquals( true, ConfigUtils.getBoolean( config, true, "no-boolean" 
) );
-        assertEquals( false, ConfigUtils.getBoolean( config, false, 
"no-boolean" ) );
+        assertTrue( ConfigUtils.getBoolean( config, true, "no-value" ) );
+        assertFalse( ConfigUtils.getBoolean( config, false, "no-value" ) );
+        assertTrue( ConfigUtils.getBoolean( config, true, "no-boolean" ) );
+        assertFalse( ConfigUtils.getBoolean( config, false, "no-boolean" ) );
     }
 
     @Test
@@ -120,18 +120,18 @@ public class ConfigUtilsTest
     {
         config.put( "no-boolean", new Object() );
         config.put( "some-boolean", true );
-        assertEquals( true, ConfigUtils.getBoolean( config, false, 
"no-boolean", "some-boolean" ) );
+        assertTrue( ConfigUtils.getBoolean( config, false, "no-boolean", 
"some-boolean" ) );
         config.put( "some-boolean", false );
-        assertEquals( false, ConfigUtils.getBoolean( config, true, 
"no-boolean", "some-boolean" ) );
+        assertFalse( ConfigUtils.getBoolean( config, true, "no-boolean", 
"some-boolean" ) );
     }
 
     @Test
     public void testGetBoolean_StringConversion()
     {
         config.put( "some-boolean", "true" );
-        assertEquals( true, ConfigUtils.getBoolean( config, false, 
"some-boolean" ) );
+        assertTrue( ConfigUtils.getBoolean( config, false, "some-boolean" ) );
         config.put( "some-boolean", "false" );
-        assertEquals( false, ConfigUtils.getBoolean( config, true, 
"some-boolean" ) );
+        assertFalse( ConfigUtils.getBoolean( config, true, "some-boolean" ) );
     }
 
     @Test
@@ -216,7 +216,7 @@ public class ConfigUtilsTest
         config.put( "some-float", "-12.3" );
         assertEquals( -12.3f, ConfigUtils.getFloat( config, 0, "some-float" ), 
0.01f );
         config.put( "some-float", "NaN" );
-        assertEquals( true, Float.isNaN( ConfigUtils.getFloat( config, 0, 
"some-float" ) ) );
+        assertTrue( Float.isNaN( ConfigUtils.getFloat( config, 0, "some-float" 
) ) );
     }
 
     @Test
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/artifact/ArtifactIdUtilsTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/artifact/ArtifactIdUtilsTest.java
index 36193f3..6b382b7 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/artifact/ArtifactIdUtilsTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/artifact/ArtifactIdUtilsTest.java
@@ -94,34 +94,34 @@ public class ArtifactIdUtilsTest
     {
         Artifact artifact1 = null;
         Artifact artifact2 = null;
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact1, artifact2 ) 
);
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact2, artifact1 ) 
);
+        assertFalse( ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
 
         artifact1 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact1, artifact2 ) 
);
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact2, artifact1 ) 
);
+        assertFalse( ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gidX", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact1, artifact2 ) 
);
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact2, artifact1 ) 
);
+        assertFalse( ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aidX", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact1, artifact2 ) 
);
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact2, artifact1 ) 
);
+        assertFalse( ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "extX", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact1, artifact2 ) 
);
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact2, artifact1 ) 
);
+        assertFalse( ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-24" );
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact1, artifact2 ) 
);
-        assertEquals( false, ArtifactIdUtils.equalsId( artifact2, artifact1 ) 
);
+        assertFalse( ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( true, ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
-        assertEquals( true, ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
+        assertTrue( ArtifactIdUtils.equalsId( artifact1, artifact2 ) );
+        assertTrue( ArtifactIdUtils.equalsId( artifact2, artifact1 ) );
 
-        assertEquals( true, ArtifactIdUtils.equalsId( artifact1, artifact1 ) );
+        assertTrue( ArtifactIdUtils.equalsId( artifact1, artifact1 ) );
     }
 
     @Test
@@ -129,38 +129,38 @@ public class ArtifactIdUtilsTest
     {
         Artifact artifact1 = null;
         Artifact artifact2 = null;
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
         artifact1 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gidX", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aidX", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "extX", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "ext", 
"X.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsBaseId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertFalse( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-24" );
-        assertEquals( true, ArtifactIdUtils.equalsBaseId( artifact1, artifact2 
) );
-        assertEquals( true, ArtifactIdUtils.equalsBaseId( artifact2, artifact1 
) );
+        assertTrue( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertTrue( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( true, ArtifactIdUtils.equalsBaseId( artifact1, artifact2 
) );
-        assertEquals( true, ArtifactIdUtils.equalsBaseId( artifact2, artifact1 
) );
+        assertTrue( ArtifactIdUtils.equalsBaseId( artifact1, artifact2 ) );
+        assertTrue( ArtifactIdUtils.equalsBaseId( artifact2, artifact1 ) );
 
-        assertEquals( true, ArtifactIdUtils.equalsBaseId( artifact1, artifact1 
) );
+        assertTrue( ArtifactIdUtils.equalsBaseId( artifact1, artifact1 ) );
     }
 
     @Test
@@ -168,34 +168,34 @@ public class ArtifactIdUtilsTest
     {
         Artifact artifact1 = null;
         Artifact artifact2 = null;
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact2 
) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact2, artifact1 
) );
 
         artifact1 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact2 
) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact2, artifact1 
) );
 
         artifact2 = new DefaultArtifact( "gidX", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact2 
) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact2, artifact1 
) );
 
         artifact2 = new DefaultArtifact( "gid", "aidX", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact2 
) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact2, artifact1 
) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "extX", 
"1.0-20110205.132618-23" );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact2 ) );
-        assertEquals( false, ArtifactIdUtils.equalsVersionlessId( artifact2, 
artifact1 ) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact2 
) );
+        assertFalse( ArtifactIdUtils.equalsVersionlessId( artifact2, artifact1 
) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-24" );
-        assertEquals( true, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact2 ) );
-        assertEquals( true, ArtifactIdUtils.equalsVersionlessId( artifact2, 
artifact1 ) );
+        assertTrue( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact2 
) );
+        assertTrue( ArtifactIdUtils.equalsVersionlessId( artifact2, artifact1 
) );
 
         artifact2 = new DefaultArtifact( "gid", "aid", "ext", 
"1.0-20110205.132618-23" );
-        assertEquals( true, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact2 ) );
-        assertEquals( true, ArtifactIdUtils.equalsVersionlessId( artifact2, 
artifact1 ) );
+        assertTrue( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact2 
) );
+        assertTrue( ArtifactIdUtils.equalsVersionlessId( artifact2, artifact1 
) );
 
-        assertEquals( true, ArtifactIdUtils.equalsVersionlessId( artifact1, 
artifact1 ) );
+        assertTrue( ArtifactIdUtils.equalsVersionlessId( artifact1, artifact1 
) );
     }
 
 }
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/ExclusionDependencyFilterTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/ExclusionDependencyFilterTest.java
index 1da95bb..37fca10 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/ExclusionDependencyFilterTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/ExclusionDependencyFilterTest.java
@@ -22,7 +22,6 @@ package org.eclipse.aether.util.filter;
 import static org.junit.Assert.*;
 
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
 
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternExclusionsDependencyFilterTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternExclusionsDependencyFilterTest.java
index 1513847..4296682 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternExclusionsDependencyFilterTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternExclusionsDependencyFilterTest.java
@@ -57,46 +57,36 @@ public class PatternExclusionsDependencyFilterTest
         DependencyNode node = builder.build();
 
         // full match
-        assertEquals( "com.example.test:testArtifact:jar:1.0.3", true,
-                      dontAccept( node, 
"com.example.test:testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:jar:1.0.3", dontAccept( 
node, "com.example.test:testArtifact:jar:1.0.3" ) );
 
         // single wildcard
-        assertEquals( "*:testArtifact:jar:1.0.3", true, dontAccept( node, 
"*:testArtifact:jar:1.0.3" ) );
-        assertEquals( "com.example.test:*:jar:1.0.3", true, dontAccept( node, 
"com.example.test:*:jar:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:*:1.0.3", true,
-                      dontAccept( node, 
"com.example.test:testArtifact:*:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:*:1.0.3", true,
-                      dontAccept( node, 
"com.example.test:testArtifact:*:1.0.3" ) );
+        assertTrue( "*:testArtifact:jar:1.0.3", dontAccept( node, 
"*:testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test:*:jar:1.0.3", dontAccept( node, 
"com.example.test:*:jar:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*:1.0.3", dontAccept( node, 
"com.example.test:testArtifact:*:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*:1.0.3", dontAccept( node, 
"com.example.test:testArtifact:*:1.0.3" ) );
 
         // implicit wildcard
-        assertEquals( ":testArtifact:jar:1.0.3", true, dontAccept( node, 
":testArtifact:jar:1.0.3" ) );
-        assertEquals( "com.example.test::jar:1.0.3", true, dontAccept( node, 
"com.example.test::jar:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact::1.0.3", true,
-                      dontAccept( node, "com.example.test:testArtifact::1.0.3" 
) );
-        assertEquals( "com.example.test:testArtifact:jar:", true,
-                      dontAccept( node, "com.example.test:testArtifact:jar:" ) 
);
+        assertTrue( ":testArtifact:jar:1.0.3", dontAccept( node, 
":testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test::jar:1.0.3", dontAccept( node, 
"com.example.test::jar:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact::1.0.3", dontAccept( node, 
"com.example.test:testArtifact::1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:jar:", dontAccept( node, 
"com.example.test:testArtifact:jar:" ) );
 
         // multi wildcards
-        assertEquals( "*:*:jar:1.0.3", true, dontAccept( node, "*:*:jar:1.0.3" 
) );
-        assertEquals( "com.example.test:*:*:1.0.3", true, dontAccept( node, 
"com.example.test:*:*:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:*:*", true, dontAccept( 
node, "com.example.test:testArtifact:*:*" ) );
-        assertEquals( "*:testArtifact:jar:*", true, dontAccept( node, 
"*:testArtifact:jar:*" ) );
-        assertEquals( "*:*:jar:*", true, dontAccept( node, "*:*:jar:*" ) );
-        assertEquals( ":*:jar:", true, dontAccept( node, ":*:jar:" ) );
+        assertTrue( "*:*:jar:1.0.3", dontAccept( node, "*:*:jar:1.0.3" ) );
+        assertTrue( "com.example.test:*:*:1.0.3", dontAccept( node, 
"com.example.test:*:*:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*:*", dontAccept( node, 
"com.example.test:testArtifact:*:*" ) );
+        assertTrue( "*:testArtifact:jar:*", dontAccept( node, 
"*:testArtifact:jar:*" ) );
+        assertTrue( "*:*:jar:*", dontAccept( node, "*:*:jar:*" ) );
+        assertTrue( ":*:jar:", dontAccept( node, ":*:jar:" ) );
 
         // partial wildcards
-        assertEquals( "*.example.test:testArtifact:jar:1.0.3", true,
-                      dontAccept( node, 
"*.example.test:testArtifact:jar:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:*ar:1.0.*", true,
-                      dontAccept( node, 
"com.example.test:testArtifact:*ar:1.0.*" ) );
-        assertEquals( "com.example.test:testArtifact:jar:1.0.*", true,
-                      dontAccept( node, 
"com.example.test:testArtifact:jar:1.0.*" ) );
-        assertEquals( "*.example.*:testArtifact:jar:1.0.3", true,
-                      dontAccept( node, "*.example.*:testArtifact:jar:1.0.3" ) 
);
+        assertTrue( "*.example.test:testArtifact:jar:1.0.3", dontAccept( node, 
"*.example.test:testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*ar:1.0.*", dontAccept( 
node, "com.example.test:testArtifact:*ar:1.0.*" ) );
+        assertTrue( "com.example.test:testArtifact:jar:1.0.*", dontAccept( 
node, "com.example.test:testArtifact:jar:1.0.*" ) );
+        assertTrue( "*.example.*:testArtifact:jar:1.0.3", dontAccept( node, 
"*.example.*:testArtifact:jar:1.0.3" ) );
 
         // wildcard as empty string
-        assertEquals( "com.example.test*:testArtifact:jar:1.0.3", true,
-                      dontAccept( node, 
"com.example.test*:testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test*:testArtifact:jar:1.0.3", dontAccept( 
node, "com.example.test*:testArtifact:jar:1.0.3" ) );
     }
 
     @Test
@@ -106,11 +96,11 @@ public class PatternExclusionsDependencyFilterTest
         builder.groupId( "com.example.test" ).artifactId( "testArtifact" 
).ext( "jar" ).version( "1.0.3" );
         DependencyNode node = builder.build();
 
-        assertEquals( "com.example.test:testArtifact:jar", true, dontAccept( 
node, "com.example.test:testArtifact:jar" ) );
-        assertEquals( "com.example.test:testArtifact", true, dontAccept( node, 
"com.example.test:testArtifact" ) );
-        assertEquals( "com.example.test", true, dontAccept( node, 
"com.example.test" ) );
+        assertTrue( "com.example.test:testArtifact:jar", dontAccept( node, 
"com.example.test:testArtifact:jar" ) );
+        assertTrue( "com.example.test:testArtifact", dontAccept( node, 
"com.example.test:testArtifact" ) );
+        assertTrue( "com.example.test", dontAccept( node, "com.example.test" ) 
);
 
-        assertEquals( "com.example.foo", false, dontAccept( node, 
"com.example.foo" ) );
+        assertFalse( "com.example.foo", dontAccept( node, "com.example.foo" ) 
);
     }
 
     @Test
@@ -120,19 +110,14 @@ public class PatternExclusionsDependencyFilterTest
         builder.groupId( "com.example.test" ).artifactId( "testArtifact" 
).ext( "jar" ).version( "1.0.3" );
         DependencyNode node = builder.build();
 
-        assertEquals( "OTHER.GROUP.ID:testArtifact:jar:1.0.3", false,
-                      dontAccept( node, 
"OTHER.GROUP.ID:testArtifact:jar:1.0.3" ) );
-        assertEquals( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", false,
-                      dontAccept( node, 
"com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
-        assertEquals( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", false,
-                      dontAccept( node, 
"com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:WAR:1.0.3", false,
-                      dontAccept( node, 
"com.example.test:testArtifact:WAR:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:jar:SNAPSHOT", false,
-                      dontAccept( node, 
"com.example.test:testArtifact:jar:SNAPSHOT" ) );
-
-        assertEquals( "*:*:war:*", false, dontAccept( node, "*:*:war:*" ) );
-        assertEquals( "OTHER.GROUP.ID", false, dontAccept( node, 
"OTHER.GROUP.ID" ) );
+        assertFalse( "OTHER.GROUP.ID:testArtifact:jar:1.0.3", dontAccept( 
node, "OTHER.GROUP.ID:testArtifact:jar:1.0.3" ) );
+        assertFalse( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", dontAccept( 
node, "com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
+        assertFalse( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", dontAccept( 
node, "com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
+        assertFalse( "com.example.test:testArtifact:WAR:1.0.3", dontAccept( 
node, "com.example.test:testArtifact:WAR:1.0.3" ) );
+        assertFalse( "com.example.test:testArtifact:jar:SNAPSHOT", dontAccept( 
node, "com.example.test:testArtifact:jar:SNAPSHOT" ) );
+
+        assertFalse( "*:*:war:*", dontAccept( node, "*:*:war:*" ) );
+        assertFalse( "OTHER.GROUP.ID", dontAccept( node, "OTHER.GROUP.ID" ) );
     }
 
     @Test
@@ -142,8 +127,7 @@ public class PatternExclusionsDependencyFilterTest
         builder.groupId( "com.example.test" ).artifactId( "testArtifact" 
).ext( "jar" ).version( "1.0.3" );
 
         DependencyNode node = builder.build();
-        assertEquals( "com.example.test:testArtifact:jar:1.0.3:foo", false,
-                      dontAccept( node, 
"com.example.test:testArtifact:jar:1.0.3:foo" ) );
+        assertFalse( "com.example.test:testArtifact:jar:1.0.3:foo", 
dontAccept( node, "com.example.test:testArtifact:jar:1.0.3:foo" ) );
     }
 
     @Test
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternInclusionsDependencyFilterTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternInclusionsDependencyFilterTest.java
index 0055cc2..50c8b8a 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternInclusionsDependencyFilterTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/filter/PatternInclusionsDependencyFilterTest.java
@@ -58,44 +58,36 @@ public class PatternInclusionsDependencyFilterTest
         DependencyNode node = builder.build();
 
         // full match
-        assertEquals( "com.example.test:testArtifact:jar:1.0.3", true,
-                      accept( node, "com.example.test:testArtifact:jar:1.0.3" 
) );
+        assertTrue( "com.example.test:testArtifact:jar:1.0.3", accept( node, 
"com.example.test:testArtifact:jar:1.0.3" ) );
 
         // single wildcard
-        assertEquals( "*:testArtifact:jar:1.0.3", true, accept( node, 
"*:testArtifact:jar:1.0.3" ) );
-        assertEquals( "com.example.test:*:jar:1.0.3", true, accept( node, 
"com.example.test:*:jar:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:*:1.0.3", true,
-                      accept( node, "com.example.test:testArtifact:*:1.0.3" ) 
);
-        assertEquals( "com.example.test:testArtifact:*:1.0.3", true,
-                      accept( node, "com.example.test:testArtifact:*:1.0.3" ) 
);
+        assertTrue( "*:testArtifact:jar:1.0.3", accept( node, 
"*:testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test:*:jar:1.0.3", accept( node, 
"com.example.test:*:jar:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*:1.0.3", accept( node, 
"com.example.test:testArtifact:*:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*:1.0.3", accept( node, 
"com.example.test:testArtifact:*:1.0.3" ) );
 
         // implicit wildcard
-        assertEquals( ":testArtifact:jar:1.0.3", true, accept( node, 
":testArtifact:jar:1.0.3" ) );
-        assertEquals( "com.example.test::jar:1.0.3", true, accept( node, 
"com.example.test::jar:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact::1.0.3", true,
-                      accept( node, "com.example.test:testArtifact::1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:jar:", true, accept( 
node, "com.example.test:testArtifact:jar:" ) );
+        assertTrue( ":testArtifact:jar:1.0.3", accept( node, 
":testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test::jar:1.0.3", accept( node, 
"com.example.test::jar:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact::1.0.3", accept( node, 
"com.example.test:testArtifact::1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:jar:", accept( node, 
"com.example.test:testArtifact:jar:" ) );
 
         // multi wildcards
-        assertEquals( "*:*:jar:1.0.3", true, accept( node, "*:*:jar:1.0.3" ) );
-        assertEquals( "com.example.test:*:*:1.0.3", true, accept( node, 
"com.example.test:*:*:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:*:*", true, accept( node, 
"com.example.test:testArtifact:*:*" ) );
-        assertEquals( "*:testArtifact:jar:*", true, accept( node, 
"*:testArtifact:jar:*" ) );
-        assertEquals( "*:*:jar:*", true, accept( node, "*:*:jar:*" ) );
-        assertEquals( ":*:jar:", true, accept( node, ":*:jar:" ) );
+        assertTrue( "*:*:jar:1.0.3", accept( node, "*:*:jar:1.0.3" ) );
+        assertTrue( "com.example.test:*:*:1.0.3", accept( node, 
"com.example.test:*:*:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*:*", accept( node, 
"com.example.test:testArtifact:*:*" ) );
+        assertTrue( "*:testArtifact:jar:*", accept( node, 
"*:testArtifact:jar:*" ) );
+        assertTrue( "*:*:jar:*", accept( node, "*:*:jar:*" ) );
+        assertTrue( ":*:jar:", accept( node, ":*:jar:" ) );
 
         // partial wildcards
-        assertEquals( "*.example.test:testArtifact:jar:1.0.3", true,
-                      accept( node, "*.example.test:testArtifact:jar:1.0.3" ) 
);
-        assertEquals( "com.example.test:testArtifact:*ar:1.0.*", true,
-                      accept( node, "com.example.test:testArtifact:*ar:1.0.*" 
) );
-        assertEquals( "com.example.test:testArtifact:jar:1.0.*", true,
-                      accept( node, "com.example.test:testArtifact:jar:1.0.*" 
) );
-        assertEquals( "*.example.*:testArtifact:jar:1.0.3", true, accept( 
node, "*.example.*:testArtifact:jar:1.0.3" ) );
+        assertTrue( "*.example.test:testArtifact:jar:1.0.3", accept( node, 
"*.example.test:testArtifact:jar:1.0.3" ) );
+        assertTrue( "com.example.test:testArtifact:*ar:1.0.*", accept( node, 
"com.example.test:testArtifact:*ar:1.0.*" ) );
+        assertTrue( "com.example.test:testArtifact:jar:1.0.*", accept( node, 
"com.example.test:testArtifact:jar:1.0.*" ) );
+        assertTrue( "*.example.*:testArtifact:jar:1.0.3", accept( node, 
"*.example.*:testArtifact:jar:1.0.3" ) );
 
         // wildcard as empty string
-        assertEquals( "com.example.test*:testArtifact:jar:1.0.3", true,
-                      accept( node, "com.example.test*:testArtifact:jar:1.0.3" 
) );
+        assertTrue( "com.example.test*:testArtifact:jar:1.0.3", accept( node, 
"com.example.test*:testArtifact:jar:1.0.3" ) );
     }
 
     @Test
@@ -105,11 +97,11 @@ public class PatternInclusionsDependencyFilterTest
         builder.groupId( "com.example.test" ).artifactId( "testArtifact" 
).ext( "jar" ).version( "1.0.3" );
         DependencyNode node = builder.build();
 
-        assertEquals( "com.example.test:testArtifact:jar", true, accept( node, 
"com.example.test:testArtifact:jar" ) );
-        assertEquals( "com.example.test:testArtifact", true, accept( node, 
"com.example.test:testArtifact" ) );
-        assertEquals( "com.example.test", true, accept( node, 
"com.example.test" ) );
+        assertTrue( "com.example.test:testArtifact:jar", accept( node, 
"com.example.test:testArtifact:jar" ) );
+        assertTrue( "com.example.test:testArtifact", accept( node, 
"com.example.test:testArtifact" ) );
+        assertTrue( "com.example.test", accept( node, "com.example.test" ) );
 
-        assertEquals( "com.example.foo", false, accept( node, 
"com.example.foo" ) );
+        assertFalse( "com.example.foo", accept( node, "com.example.foo" ) );
     }
 
     @Test
@@ -119,19 +111,14 @@ public class PatternInclusionsDependencyFilterTest
         builder.groupId( "com.example.test" ).artifactId( "testArtifact" 
).ext( "jar" ).version( "1.0.3" );
         DependencyNode node = builder.build();
 
-        assertEquals( "OTHER.GROUP.ID:testArtifact:jar:1.0.3", false,
-                      accept( node, "OTHER.GROUP.ID:testArtifact:jar:1.0.3" ) 
);
-        assertEquals( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", false,
-                      accept( node, 
"com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
-        assertEquals( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", false,
-                      accept( node, 
"com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
-        assertEquals( "com.example.test:testArtifact:WAR:1.0.3", false,
-                      accept( node, "com.example.test:testArtifact:WAR:1.0.3" 
) );
-        assertEquals( "com.example.test:testArtifact:jar:SNAPSHOT", false,
-                      accept( node, 
"com.example.test:testArtifact:jar:SNAPSHOT" ) );
-
-        assertEquals( "*:*:war:*", false, accept( node, "*:*:war:*" ) );
-        assertEquals( "OTHER.GROUP.ID", false, accept( node, "OTHER.GROUP.ID" 
) );
+        assertFalse( "OTHER.GROUP.ID:testArtifact:jar:1.0.3", accept( node, 
"OTHER.GROUP.ID:testArtifact:jar:1.0.3" ) );
+        assertFalse( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", accept( 
node, "com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
+        assertFalse( "com.example.test:OTHER_ARTIFACT:jar:1.0.3", accept( 
node, "com.example.test:OTHER_ARTIFACT:jar:1.0.3" ) );
+        assertFalse( "com.example.test:testArtifact:WAR:1.0.3", accept( node, 
"com.example.test:testArtifact:WAR:1.0.3" ) );
+        assertFalse( "com.example.test:testArtifact:jar:SNAPSHOT", accept( 
node, "com.example.test:testArtifact:jar:SNAPSHOT" ) );
+
+        assertFalse( "*:*:war:*", accept( node, "*:*:war:*" ) );
+        assertFalse( "OTHER.GROUP.ID", accept( node, "OTHER.GROUP.ID" ) );
     }
 
     @Test
@@ -141,8 +128,7 @@ public class PatternInclusionsDependencyFilterTest
         builder.groupId( "com.example.test" ).artifactId( "testArtifact" 
).ext( "jar" ).version( "1.0.3" );
 
         DependencyNode node = builder.build();
-        assertEquals( "com.example.test:testArtifact:jar:1.0.3:foo", false,
-                      accept( node, 
"com.example.test:testArtifact:jar:1.0.3:foo" ) );
+        assertFalse( "com.example.test:testArtifact:jar:1.0.3:foo", accept( 
node, "com.example.test:testArtifact:jar:1.0.3:foo" ) );
     }
 
     @Test
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/ConflictMarkerTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/ConflictMarkerTest.java
index 550a0c6..6a81d51 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/ConflictMarkerTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/ConflictMarkerTest.java
@@ -63,7 +63,7 @@ public class ConflictMarkerTest
         assertNotNull( ids.get( root.getChildren().get( 0 ) ) );
         assertNotNull( ids.get( root.getChildren().get( 1 ) ) );
         assertNotSame( ids.get( root.getChildren().get( 0 ) ), ids.get( 
root.getChildren().get( 1 ) ) );
-        assertFalse( ids.get( root.getChildren().get( 0 ) ).equals( ids.get( 
root.getChildren().get( 1 ) ) ) );
+        assertNotEquals( ids.get( root.getChildren().get( 0 ) ), ids.get( 
root.getChildren().get( 1 ) ) );
     }
 
     @Test
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/SimpleOptionalitySelectorTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/SimpleOptionalitySelectorTest.java
index f6d268f..c2b8102 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/SimpleOptionalitySelectorTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/SimpleOptionalitySelectorTest.java
@@ -51,10 +51,10 @@ public class SimpleOptionalitySelectorTest
         assertSame( root, transform( root ) );
 
         assertEquals( 2, root.getChildren().size() );
-        assertEquals( true, root.getChildren().get( 0 
).getDependency().isOptional() );
-        assertEquals( true, root.getChildren().get( 0 ).getChildren().get( 0 
).getDependency().isOptional() );
-        assertEquals( false, root.getChildren().get( 1 
).getDependency().isOptional() );
-        assertEquals( false, root.getChildren().get( 1 ).getChildren().get( 0 
).getDependency().isOptional() );
+        assertTrue( root.getChildren().get( 0 ).getDependency().isOptional() );
+        assertTrue( root.getChildren().get( 0 ).getChildren().get( 0 
).getDependency().isOptional() );
+        assertFalse( root.getChildren().get( 1 ).getDependency().isOptional() 
);
+        assertFalse( root.getChildren().get( 1 ).getChildren().get( 0 
).getDependency().isOptional() );
     }
 
     @Test
@@ -65,8 +65,8 @@ public class SimpleOptionalitySelectorTest
         assertSame( root, transform( root ) );
 
         assertEquals( 2, root.getChildren().size() );
-        assertEquals( true, root.getChildren().get( 0 
).getDependency().isOptional() );
-        assertEquals( false, root.getChildren().get( 0 ).getChildren().get( 0 
).getDependency().isOptional() );
+        assertTrue( root.getChildren().get( 0 ).getDependency().isOptional() );
+        assertFalse( root.getChildren().get( 0 ).getChildren().get( 0 
).getDependency().isOptional() );
     }
 
     @Test
@@ -77,7 +77,7 @@ public class SimpleOptionalitySelectorTest
         assertSame( root, transform( root ) );
 
         assertEquals( 2, root.getChildren().size() );
-        assertEquals( true, root.getChildren().get( 1 
).getDependency().isOptional() );
+        assertTrue( root.getChildren().get( 1 ).getDependency().isOptional() );
     }
 
 }
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ChainedVersionFilterTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ChainedVersionFilterTest.java
index 9f8a2aa..6c0c750 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ChainedVersionFilterTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ChainedVersionFilterTest.java
@@ -78,9 +78,9 @@ public class ChainedVersionFilterTest
     public void testEquals()
     {
         VersionFilter filter = ChainedVersionFilter.newInstance( new 
HighestVersionFilter() );
-        assertFalse( filter.equals( null ) );
-        assertTrue( filter.equals( filter ) );
-        assertTrue( filter.equals( ChainedVersionFilter.newInstance( new 
HighestVersionFilter() ) ) );
+        assertNotEquals( null, filter );
+        assertEquals( filter, filter );
+        assertEquals( filter, ChainedVersionFilter.newInstance( new 
HighestVersionFilter() ) );
     }
 
 }
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ContextualSnapshotVersionFilterTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ContextualSnapshotVersionFilterTest.java
index 08b5a58..a9cb1a8 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ContextualSnapshotVersionFilterTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/ContextualSnapshotVersionFilterTest.java
@@ -65,9 +65,9 @@ public class ContextualSnapshotVersionFilterTest
     public void testEquals()
     {
         ContextualSnapshotVersionFilter filter = new 
ContextualSnapshotVersionFilter();
-        assertFalse( filter.equals( null ) );
-        assertTrue( filter.equals( filter ) );
-        assertTrue( filter.equals( new ContextualSnapshotVersionFilter() ) );
+        assertNotEquals( null, filter );
+        assertEquals( filter, filter );
+        assertEquals( filter, new ContextualSnapshotVersionFilter() );
     }
 
 }
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/HighestVersionFilterTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/HighestVersionFilterTest.java
index 49cbc9c..35a034a 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/HighestVersionFilterTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/HighestVersionFilterTest.java
@@ -50,9 +50,9 @@ public class HighestVersionFilterTest
     public void testEquals()
     {
         HighestVersionFilter filter = new HighestVersionFilter();
-        assertFalse( filter.equals( null ) );
-        assertTrue( filter.equals( filter ) );
-        assertTrue( filter.equals( new HighestVersionFilter() ) );
+        assertNotEquals( null, filter );
+        assertEquals( filter, filter );
+        assertEquals( filter, new HighestVersionFilter() );
     }
 
 }
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/SnapshotVersionFilterTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/SnapshotVersionFilterTest.java
index add2037..d7d27fc 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/SnapshotVersionFilterTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/versions/SnapshotVersionFilterTest.java
@@ -50,9 +50,9 @@ public class SnapshotVersionFilterTest
     public void testEquals()
     {
         SnapshotVersionFilter filter = new SnapshotVersionFilter();
-        assertFalse( filter.equals( null ) );
-        assertTrue( filter.equals( filter ) );
-        assertTrue( filter.equals( new SnapshotVersionFilter() ) );
+        assertNotEquals( null, filter );
+        assertEquals( filter, filter );
+        assertEquals( filter, new SnapshotVersionFilter() );
     }
 
 }
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/ComponentAuthenticationTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/ComponentAuthenticationTest.java
index 25d53f2..17386da 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/ComponentAuthenticationTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/ComponentAuthenticationTest.java
@@ -62,7 +62,7 @@ public class ComponentAuthenticationTest
         Component comp = new Component();
         Authentication auth = new ComponentAuthentication( "key", comp );
         AuthenticationContext context = newContext( auth );
-        assertEquals( null, context.get( "another-key" ) );
+        assertNull( context.get( "another-key" ) );
         assertSame( comp, context.get( "key", Component.class ) );
     }
 
@@ -77,11 +77,11 @@ public class ComponentAuthenticationTest
 
         Authentication auth3 = new ComponentAuthentication( "key", new 
Object() );
         String digest3 = newDigest( auth3 );
-        assertFalse( digest3.equals( digest1 ) );
+        assertNotEquals( digest3, digest1 );
 
         Authentication auth4 = new ComponentAuthentication( "Key", new 
Component() );
         String digest4 = newDigest( auth4 );
-        assertFalse( digest4.equals( digest1 ) );
+        assertNotEquals( digest4, digest1 );
     }
 
     @Test
@@ -91,8 +91,8 @@ public class ComponentAuthenticationTest
         Authentication auth2 = new ComponentAuthentication( "key", new 
Component() );
         Authentication auth3 = new ComponentAuthentication( "key", new 
Object() );
         assertEquals( auth1, auth2 );
-        assertFalse( auth1.equals( auth3 ) );
-        assertFalse( auth1.equals( null ) );
+        assertNotEquals( auth1, auth3 );
+        assertNotEquals( null, auth1 );
     }
 
     @Test
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/SecretAuthenticationTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/SecretAuthenticationTest.java
index df4afaf..f7045ac 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/SecretAuthenticationTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/SecretAuthenticationTest.java
@@ -65,7 +65,7 @@ public class SecretAuthenticationTest
     {
         Authentication auth = new SecretAuthentication( "key", "value" );
         AuthenticationContext context = newContext( auth );
-        assertEquals( null, context.get( "another-key" ) );
+        assertNull( context.get( "another-key" ) );
         assertEquals( "value", context.get( "key" ) );
     }
 
@@ -80,11 +80,11 @@ public class SecretAuthenticationTest
 
         Authentication auth3 = new SecretAuthentication( "key", "Value" );
         String digest3 = newDigest( auth3 );
-        assertFalse( digest3.equals( digest1 ) );
+        assertNotEquals( digest3, digest1 );
 
         Authentication auth4 = new SecretAuthentication( "Key", "value" );
         String digest4 = newDigest( auth4 );
-        assertFalse( digest4.equals( digest1 ) );
+        assertNotEquals( digest4, digest1 );
     }
 
     @Test
@@ -94,8 +94,8 @@ public class SecretAuthenticationTest
         Authentication auth2 = new SecretAuthentication( "key", "value" );
         Authentication auth3 = new SecretAuthentication( "key", "Value" );
         assertEquals( auth1, auth2 );
-        assertFalse( auth1.equals( auth3 ) );
-        assertFalse( auth1.equals( null ) );
+        assertNotEquals( auth1, auth3 );
+        assertNotEquals( null, auth1 );
     }
 
     @Test
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/StringAuthenticationTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/StringAuthenticationTest.java
index 8f89299..6f3c524 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/StringAuthenticationTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/repository/StringAuthenticationTest.java
@@ -57,7 +57,7 @@ public class StringAuthenticationTest
     {
         Authentication auth = new StringAuthentication( "key", "value" );
         AuthenticationContext context = newContext( auth );
-        assertEquals( null, context.get( "another-key" ) );
+        assertNull( context.get( "another-key" ) );
         assertEquals( "value", context.get( "key" ) );
     }
 
@@ -72,11 +72,11 @@ public class StringAuthenticationTest
 
         Authentication auth3 = new StringAuthentication( "key", "Value" );
         String digest3 = newDigest( auth3 );
-        assertFalse( digest3.equals( digest1 ) );
+        assertNotEquals( digest3, digest1 );
 
         Authentication auth4 = new StringAuthentication( "Key", "value" );
         String digest4 = newDigest( auth4 );
-        assertFalse( digest4.equals( digest1 ) );
+        assertNotEquals( digest4, digest1 );
     }
 
     @Test
@@ -86,8 +86,8 @@ public class StringAuthenticationTest
         Authentication auth2 = new StringAuthentication( "key", "value" );
         Authentication auth3 = new StringAuthentication( "key", "Value" );
         assertEquals( auth1, auth2 );
-        assertFalse( auth1.equals( auth3 ) );
-        assertFalse( auth1.equals( null ) );
+        assertNotEquals( auth1, auth3 );
+        assertNotEquals( null, auth1 );
     }
 
     @Test
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/AbstractVersionTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/AbstractVersionTest.java
index 52541db..32f19f2 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/AbstractVersionTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/AbstractVersionTest.java
@@ -20,6 +20,8 @@ package org.eclipse.aether.util.version;
  */
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 
 import org.eclipse.aether.version.Version;
 
@@ -45,22 +47,22 @@ abstract class AbstractVersionTest
         {
             assertEquals( "expected " + v1 + " > " + v2, 1, Integer.signum( 
v1.compareTo( v2 ) ) );
             assertEquals( "expected " + v2 + " < " + v1, -1, Integer.signum( 
v2.compareTo( v1 ) ) );
-            assertEquals( "expected " + v1 + " != " + v2, false, v1.equals( v2 
) );
-            assertEquals( "expected " + v2 + " != " + v1, false, v2.equals( v1 
) );
+            assertFalse( "expected " + v1 + " != " + v2, v1.equals( v2 ) );
+            assertFalse( "expected " + v2 + " != " + v1, v2.equals( v1 ) );
         }
         else if ( expected < 0 )
         {
             assertEquals( "expected " + v1 + " < " + v2, -1, Integer.signum( 
v1.compareTo( v2 ) ) );
             assertEquals( "expected " + v2 + " > " + v1, 1, Integer.signum( 
v2.compareTo( v1 ) ) );
-            assertEquals( "expected " + v1 + " != " + v2, false, v1.equals( v2 
) );
-            assertEquals( "expected " + v2 + " != " + v1, false, v2.equals( v1 
) );
+            assertFalse( "expected " + v1 + " != " + v2, v1.equals( v2 ) );
+            assertFalse( "expected " + v2 + " != " + v1, v2.equals( v1 ) );
         }
         else
         {
             assertEquals( "expected " + v1 + " == " + v2, 0, v1.compareTo( v2 
) );
             assertEquals( "expected " + v2 + " == " + v1, 0, v2.compareTo( v1 
) );
-            assertEquals( "expected " + v1 + " == " + v2, true, v1.equals( v2 
) );
-            assertEquals( "expected " + v2 + " == " + v1, true, v2.equals( v1 
) );
+            assertTrue( "expected " + v1 + " == " + v2, v1.equals( v2 ) );
+            assertTrue( "expected " + v2 + " == " + v1, v2.equals( v1 ) );
             assertEquals( "expected #(" + v1 + ") == #(" + v1 + ")", 
v1.hashCode(), v2.hashCode() );
         }
     }
diff --git 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/GenericVersionSchemeTest.java
 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/GenericVersionSchemeTest.java
index e5465be..351a629 100644
--- 
a/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/GenericVersionSchemeTest.java
+++ 
b/maven-resolver-util/src/test/java/org/eclipse/aether/util/version/GenericVersionSchemeTest.java
@@ -64,7 +64,7 @@ public class GenericVersionSchemeTest
         assertTrue( c.containsVersion( new GenericVersion( "1.0" ) ) );
 
         c = scheme.parseVersionConstraint( "[1.0]" );
-        assertEquals( null, c.getVersion() );
+        assertNull( c.getVersion() );
         assertTrue( c.containsVersion( new GenericVersion( "1.0" ) ) );
 
         c = scheme.parseVersionConstraint( "[1.0],[2.0]" );

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