Uploaded image for project: 'Felix'
  1. Felix
  2. FELIX-3571

"Comparison method violates general contract!" error in maven-scr-plugin

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: maven-scr-plugin-1.7.4
    • Component/s: SCR Tooling
    • Labels:
      None
    • Environment:

      Description

      With the above environment and maven-scr-plugin version 1.7.4 the following command sequence fails:

      $ svn co -r 1353284 http://svn.apache.org/repos/asf/jackrabbit/oak/trunk/oak-mk/
      $ cd oak-mk
      $ mvn install

      The failure is triggered by some incorrect Comparator implementation in the SCR plugin. The failure stack trace is:

      [ERROR] Failed to execute goal org.apache.felix:maven-scr-plugin:1.7.4:scr (generate-scr-scrdescriptor) on project oak-mk: Execution generate-scr-scrdescriptor of goal org.apache.felix:maven-scr-plugin:1.7.4:scr failed: Comparison method violates its general contract! -> [Help 1]
      org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.felix:maven-scr-plugin:1.7.4:scr (generate-scr-scrdescriptor) on project oak-mk: Execution generate-scr-scrdescriptor of goal org.apache.felix:maven-scr-plugin:1.7.4:scr failed: Comparison method violates its general contract!
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
      at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
      at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
      at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
      at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
      at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:601)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
      Caused by: org.apache.maven.plugin.PluginExecutionException: Execution generate-scr-scrdescriptor of goal org.apache.felix:maven-scr-plugin:1.7.4:scr failed: Comparison method violates its general contract!
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
      ... 19 more
      Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
      at java.util.TimSort.mergeLo(TimSort.java:747)
      at java.util.TimSort.mergeAt(TimSort.java:483)
      at java.util.TimSort.mergeCollapse(TimSort.java:410)
      at java.util.TimSort.sort(TimSort.java:214)
      at java.util.TimSort.sort(TimSort.java:173)
      at java.util.Arrays.sort(Arrays.java:659)
      at org.apache.felix.scrplugin.SCRDescriptorGenerator.execute(SCRDescriptorGenerator.java:235)
      at org.apache.felix.scrplugin.mojo.SCRDescriptorMojo.execute(SCRDescriptorMojo.java:192)
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
      ... 20 more

        Attachments

          Activity

            People

            • Assignee:
              cziegeler Carsten Ziegeler
              Reporter:
              jukkaz Jukka Zitting
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: