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  1. Maven
  2. MNG-6647

NPE in DefaultReportingConverter (when reports injected by Repaint IO maven-tiles)

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.6.2
    • Component/s: None
    • Labels:
      None
    • Flags:
      Patch

      Description

      I discovered this NPE whilst running some integration tests for our Repoaint IO tiles-maven-plugin:

      [INFO] Scanning for projects...
      [INFO] --- tiles-maven-plugin: Injecting 1 tiles as intermediary parent artifacts for com.test:reporting-tiletest...
      [INFO] Mixed 'com.test:reporting-tiletest:0.1.0' with tile 'com.test:reporting-tiletest-tile:0.1.0' as its new parent.
      [INFO] Mixed 'com.test:reporting-tiletest-tile:0.1.0' with original parent '(no parent)' as its new top level parent.
      [INFO] 
      [ERROR] Internal error: java.lang.NullPointerException -> [Help 1]
      org.apache.maven.InternalErrorException: Internal error: java.lang.NullPointerException
       at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:120)
       at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
       at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
       at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
       at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
       at java.lang.reflect.Method.invoke (Method.java:498)
       at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
       at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
       at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
       at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
      Caused by: java.lang.NullPointerException
       at org.apache.maven.model.plugin.DefaultReportingConverter.convert (DefaultReportingConverter.java:243)
       at org.apache.maven.model.plugin.DefaultReportingConverter.convert (DefaultReportingConverter.java:213)
       at org.apache.maven.model.plugin.DefaultReportingConverter.convertReporting (DefaultReportingConverter.java:140)
       at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:479)
       at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:432)
       at org.apache.maven.model.building.ModelBuilder$build$0.call (Unknown Source)
       at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall (CallSiteArray.java:47)
       at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call (AbstractCallSite.java:116)
       at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call (AbstractCallSite.java:136)
       at io.repaint.maven.tiles.TilesMavenLifecycleParticipant.thunkModelBuilder (TilesMavenLifecycleParticipant.groovy:460)
       at io.repaint.maven.tiles.TilesMavenLifecycleParticipant.orchestrateMerge (TilesMavenLifecycleParticipant.groovy:362)
       at io.repaint.maven.tiles.TilesMavenLifecycleParticipant.afterProjectsRead (TilesMavenLifecycleParticipant.groovy:306)
       at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:264)
       at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
       at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
       at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
       at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
       at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
       at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
       at java.lang.reflect.Method.invoke (Method.java:498)
       at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
       at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
       at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
       at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

       

      This was triggered when running our sitereporting test ( https://github.com/repaint-io/maven-tiles/tree/master/src/it/sitereporting-tiletest ) and doesn't trigger an NPE using Apache Maven 3.5.3, but does with the current SNAPSHOT of 3.6.2.

      The problem lies when Maven is building the model from https://github.com/repaint-io/maven-tiles/blob/master/src/it/sitereporting-tiletest/tile-tile/tile.xml#L35 and can be fixed by applying the patch found at https://www.dropbox.com/s/9gficrmlgxl2jd0/0001-Fix-NPE-thrown-from-DefaultReportingConverter.patch?dl=0 (for some reason I could not attach the patch to the ticket).

       

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              • Assignee:
                hboutemy Herve Boutemy
                Reporter:
                talios Mark Derricutt
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                  Updated:
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