Calling mvn versions:display-dependency-updates -Dmaven.version.ignore="Alpha"
Generates following exception after upgrading from 2.19.1 to 2.20.0 (and 2.20.1).
Execution default-cli of goal org.codehaus.mojo:versions-maven-plugin:2.20.0:display-dependency-updates failed: Cannot invoke "java.lang.CharSequence.length()" because "this.text" is null
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:333)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103)
at java.lang.reflect.Method.invoke (Method.java:580)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-cli of goal org.codehaus.mojo:versions-maven-plugin:2.20.0:display-dependency-updates failed: Cannot invoke "java.lang.CharSequence.length()" because "this.text" is null
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:133)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103)
at java.lang.reflect.Method.invoke (Method.java:580)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314)
Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.CharSequence.length()" because "this.text" is null
at java.util.regex.Matcher.getTextLength (Matcher.java:1808)
at java.util.regex.Matcher.reset (Matcher.java:461)
at java.util.regex.Matcher.<init> (Matcher.java:256)
at java.util.regex.Pattern.matcher (Pattern.java:1180)
at org.codehaus.mojo.versions.api.IgnoreVersionHelper.isVersionIgnoredRegex (IgnoreVersionHelper.java:123)
at org.codehaus.mojo.versions.api.IgnoreVersionHelper.access$100 (IgnoreVersionHelper.java:35)
at org.codehaus.mojo.versions.api.IgnoreVersionHelper$IgnoreVersionType.lambda$TYPE_REGEX$0 (IgnoreVersionHelper.java:52)
at org.codehaus.mojo.versions.api.IgnoreVersionHelper.lambda$isVersionIgnored$0 (IgnoreVersionHelper.java:103)
at java.util.Optional.map (Optional.java:260)
at org.codehaus.mojo.versions.api.IgnoreVersionHelper.isVersionIgnored (IgnoreVersionHelper.java:103)
at org.codehaus.mojo.versions.rule.RuleServiceUtils.lambda$filterByRuleService$1 (RuleServiceUtils.java:39)
at java.util.stream.MatchOps$1MatchSink.accept (MatchOps.java:90)
at java.util.ArrayList$ArrayListSpliterator.tryAdvance (ArrayList.java:1685)
at java.util.stream.ReferencePipeline.forEachWithCancel (ReferencePipeline.java:129)
at java.util.stream.AbstractPipeline.copyIntoWithCancel (AbstractPipeline.java:527)
at java.util.stream.AbstractPipeline.copyInto (AbstractPipeline.java:513)
at java.util.stream.AbstractPipeline.wrapAndCopyInto (AbstractPipeline.java:499)
at java.util.stream.MatchOps$MatchOp.evaluateSequential (MatchOps.java:230)
at java.util.stream.MatchOps$MatchOp.evaluateSequential (MatchOps.java:196)
at java.util.stream.AbstractPipeline.evaluate (AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.noneMatch (ReferencePipeline.java:642)
at org.codehaus.mojo.versions.rule.RuleServiceUtils.lambda$filterByRuleService$0 (RuleServiceUtils.java:38)
at org.codehaus.mojo.versions.api.ArtifactVersions.filter (ArtifactVersions.java:91)
at org.codehaus.mojo.versions.rule.RuleServiceUtils.filterByRuleService (RuleServiceUtils.java:38)
at org.codehaus.mojo.versions.internal.DependencyUpdatesLoggingHelper.getDependencyUpdates (DependencyUpdatesLoggingHelper.java:107)
at org.codehaus.mojo.versions.DisplayDependencyUpdatesMojo.logUpdates (DisplayDependencyUpdatesMojo.java:555)
at org.codehaus.mojo.versions.DisplayDependencyUpdatesMojo.execute (DisplayDependencyUpdatesMojo.java:478)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:126)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103)
at java.lang.reflect.Method.invoke (Method.java:580)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314)
Calling
mvn versions:display-dependency-updates -Dmaven.version.ignore="Alpha"Generates following exception after upgrading from 2.19.1 to 2.20.0 (and 2.20.1).