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Posted to dev@maven.apache.org by "Arik Kfir (JIRA)" <ji...@codehaus.org> on 2005/11/12 13:05:07 UTC

[jira] Created: (MNG-1529) NPE when inheriting report sets

NPE when inheriting report sets
-------------------------------

         Key: MNG-1529
         URL: http://jira.codehaus.org/browse/MNG-1529
     Project: Maven 2
        Type: Bug
  Components: maven-project  
    Versions: 2.0    
 Environment: JDK 1.5.0_05, Kubuntu linux 5.1
    Reporter: Arik Kfir


I have three POMs:

A: serves as a template for new projects
B: Extends A - the root POM of a multi-module project
C: Extends B - a module in the B project

One of the things project A defines is the <reporting> element. However, when I try to build project B, I get the following exception:

arik@corleon:~/projects/swinger$ mvn clean
[INFO] Scanning for projects...
[INFO] snapshot org.corleon:parent:1.1-SNAPSHOT: checking for updates from corleon
[INFO] ----------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ----------------------------------------------------------------------------
[INFO] null
[INFO] ----------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException
        at java.util.TreeMap.compare(TreeMap.java:1093)
        at java.util.TreeMap.getEntry(TreeMap.java:347)
        at java.util.TreeMap.containsKey(TreeMap.java:204)
        at org.apache.maven.project.ModelUtils.mergeReportPluginDefinitions(ModelUtils.java:324)
        at org.apache.maven.project.ModelUtils.mergeReportPluginLists(ModelUtils.java:156)
        at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleReportingInheritance(DefaultModelInheritanceAssembler.java:277)
        at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:170)
        at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:56)
        at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:605)
        at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFile(DefaultMavenProjectBuilder.java:298)
        at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:276)
        at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:509)
        at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:441)
        at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:485)
        at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:345)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:276)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
        at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
[INFO] ----------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Sat Nov 12 13:45:14 IST 2005
[INFO] Final Memory: 1M/2M
[INFO] ----------------------------------------------------------------------------

I tracked down the problem to the <reporting> element in project A, because when I remove it, things work again. I believe there's a problem in the way maven merges reporting info from parent POMs (well..duh).

Here is the reporting data in project A:
  <reporting>
    <plugins>
      <plugin>
        <artifactId>maven-javadoc-plugin</artifactId>
        <reportSets>
          <reportSet>
            <reports>
              <report>javadoc</report>
            </reports>
          </reportSet>
        </reportSets>
      </plugin>
      <plugin>
        <artifactId>maven-project-info-reports-plugin</artifactId>
        <reportSets>
          <reportSet>
            <reports>
              <report>dependencies</report>
              <report>project-team</report>
              <report>license</report>
              <report>scm</report>
            </reports>
          </reportSet>
        </reportSets>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>changes-maven-plugin</artifactId>
        <reportSets>
          <reportSet>
            <reports>
              <report>changes-report</report>
            </reports>
          </reportSet>
        </reportSets>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>surefire-report-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>taglist-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </reporting>

It appears it is not a specific plugin, but rather the appearance of the <reportSet> element. I've tried with both the javadoc and the project-info plugins - both cause the NPE when they have atleast one <reportSet> element. Having an empty <reportSets> (with no <reportSet> elements) does not cause the exception.

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[jira] Updated: (MNG-1529) NPE when inheriting report sets

Posted by "John Casey (JIRA)" <ji...@codehaus.org>.
     [ http://jira.codehaus.org/browse/MNG-1529?page=all ]

John Casey updated MNG-1529:
----------------------------

    Fix Version:     (was: 2.0.1)
                 2.0.2

> NPE when inheriting report sets
> -------------------------------
>
>          Key: MNG-1529
>          URL: http://jira.codehaus.org/browse/MNG-1529
>      Project: Maven 2
>         Type: Bug
>   Components: Inheritence and Interpolation
>     Versions: 2.0
>  Environment: JDK 1.5.0_05, Kubuntu linux 5.1
>     Reporter: Arik Kfir
>      Fix For: 2.0.2
>  Attachments: MNG-1539-test-case.tar.bz2
>
>
> I have three POMs:
> A: serves as a template for new projects
> B: Extends A - the root POM of a multi-module project
> C: Extends B - a module in the B project
> One of the things project A defines is the <reporting> element. However, when I try to build project B, I get the following exception:
> arik@corleon:~/projects/swinger$ mvn clean
> [INFO] Scanning for projects...
> [INFO] snapshot org.corleon:parent:1.1-SNAPSHOT: checking for updates from corleon
> [INFO] ----------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ----------------------------------------------------------------------------
> [INFO] null
> [INFO] ----------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException
>         at java.util.TreeMap.compare(TreeMap.java:1093)
>         at java.util.TreeMap.getEntry(TreeMap.java:347)
>         at java.util.TreeMap.containsKey(TreeMap.java:204)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginDefinitions(ModelUtils.java:324)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginLists(ModelUtils.java:156)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleReportingInheritance(DefaultModelInheritanceAssembler.java:277)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:170)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:56)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:605)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFile(DefaultMavenProjectBuilder.java:298)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:276)
>         at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:509)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:441)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:485)
>         at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:345)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:276)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>         at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>         at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>         at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> [INFO] ----------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Sat Nov 12 13:45:14 IST 2005
> [INFO] Final Memory: 1M/2M
> [INFO] ----------------------------------------------------------------------------
> I tracked down the problem to the <reporting> element in project A, because when I remove it, things work again. I believe there's a problem in the way maven merges reporting info from parent POMs (well..duh).
> Here is the reporting data in project A:
>   <reporting>
>     <plugins>
>       <plugin>
>         <artifactId>maven-javadoc-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>javadoc</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <artifactId>maven-project-info-reports-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>dependencies</report>
>               <report>project-team</report>
>               <report>license</report>
>               <report>scm</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>changes-maven-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>changes-report</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>surefire-report-maven-plugin</artifactId>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>taglist-maven-plugin</artifactId>
>       </plugin>
>     </plugins>
>   </reporting>
> It appears it is not a specific plugin, but rather the appearance of the <reportSet> element. I've tried with both the javadoc and the project-info plugins - both cause the NPE when they have atleast one <reportSet> element. Having an empty <reportSets> (with no <reportSet> elements) does not cause the exception.

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[jira] Updated: (MNG-1529) NPE when inheriting report sets

Posted by "Joakim Erdfelt (JIRA)" <ji...@codehaus.org>.
     [ http://jira.codehaus.org/browse/MNG-1529?page=all ]

Joakim Erdfelt updated MNG-1529:
--------------------------------

    Attachment: MNG-1539-test-case.tar.bz2

I have been experiencing this NPE also.

I have attached a small sample project/test case to demonstrate
this bug.

Note: I still use maven 2.0 final (not 2.0.1).

> NPE when inheriting report sets
> -------------------------------
>
>          Key: MNG-1529
>          URL: http://jira.codehaus.org/browse/MNG-1529
>      Project: Maven 2
>         Type: Bug
>   Components: Inheritence and Interpolation
>     Versions: 2.0
>  Environment: JDK 1.5.0_05, Kubuntu linux 5.1
>     Reporter: Arik Kfir
>      Fix For: 2.0.1
>  Attachments: MNG-1539-test-case.tar.bz2
>
>
> I have three POMs:
> A: serves as a template for new projects
> B: Extends A - the root POM of a multi-module project
> C: Extends B - a module in the B project
> One of the things project A defines is the <reporting> element. However, when I try to build project B, I get the following exception:
> arik@corleon:~/projects/swinger$ mvn clean
> [INFO] Scanning for projects...
> [INFO] snapshot org.corleon:parent:1.1-SNAPSHOT: checking for updates from corleon
> [INFO] ----------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ----------------------------------------------------------------------------
> [INFO] null
> [INFO] ----------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException
>         at java.util.TreeMap.compare(TreeMap.java:1093)
>         at java.util.TreeMap.getEntry(TreeMap.java:347)
>         at java.util.TreeMap.containsKey(TreeMap.java:204)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginDefinitions(ModelUtils.java:324)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginLists(ModelUtils.java:156)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleReportingInheritance(DefaultModelInheritanceAssembler.java:277)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:170)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:56)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:605)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFile(DefaultMavenProjectBuilder.java:298)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:276)
>         at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:509)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:441)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:485)
>         at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:345)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:276)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>         at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>         at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>         at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> [INFO] ----------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Sat Nov 12 13:45:14 IST 2005
> [INFO] Final Memory: 1M/2M
> [INFO] ----------------------------------------------------------------------------
> I tracked down the problem to the <reporting> element in project A, because when I remove it, things work again. I believe there's a problem in the way maven merges reporting info from parent POMs (well..duh).
> Here is the reporting data in project A:
>   <reporting>
>     <plugins>
>       <plugin>
>         <artifactId>maven-javadoc-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>javadoc</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <artifactId>maven-project-info-reports-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>dependencies</report>
>               <report>project-team</report>
>               <report>license</report>
>               <report>scm</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>changes-maven-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>changes-report</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>surefire-report-maven-plugin</artifactId>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>taglist-maven-plugin</artifactId>
>       </plugin>
>     </plugins>
>   </reporting>
> It appears it is not a specific plugin, but rather the appearance of the <reportSet> element. I've tried with both the javadoc and the project-info plugins - both cause the NPE when they have atleast one <reportSet> element. Having an empty <reportSets> (with no <reportSet> elements) does not cause the exception.

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-
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[jira] Closed: (MNG-1529) NPE when inheriting report sets

Posted by "John Casey (JIRA)" <ji...@codehaus.org>.
     [ http://jira.codehaus.org/browse/MNG-1529?page=all ]
     
John Casey closed MNG-1529:
---------------------------

      Assign To: John Casey
     Resolution: Fixed
    Fix Version:     (was: 2.0.3)
                 2.0.1

forgot to close earlier....

> NPE when inheriting report sets
> -------------------------------
>
>          Key: MNG-1529
>          URL: http://jira.codehaus.org/browse/MNG-1529
>      Project: Maven 2
>         Type: Bug

>   Components: Inheritence and Interpolation
>     Versions: 2.0
>  Environment: JDK 1.5.0_05, Kubuntu linux 5.1
>     Reporter: Arik Kfir
>     Assignee: John Casey
>      Fix For: 2.0.1
>  Attachments: MNG-1539-test-case.tar.bz2
>
>
> I have three POMs:
> A: serves as a template for new projects
> B: Extends A - the root POM of a multi-module project
> C: Extends B - a module in the B project
> One of the things project A defines is the <reporting> element. However, when I try to build project B, I get the following exception:
> arik@corleon:~/projects/swinger$ mvn clean
> [INFO] Scanning for projects...
> [INFO] snapshot org.corleon:parent:1.1-SNAPSHOT: checking for updates from corleon
> [INFO] ----------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ----------------------------------------------------------------------------
> [INFO] null
> [INFO] ----------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException
>         at java.util.TreeMap.compare(TreeMap.java:1093)
>         at java.util.TreeMap.getEntry(TreeMap.java:347)
>         at java.util.TreeMap.containsKey(TreeMap.java:204)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginDefinitions(ModelUtils.java:324)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginLists(ModelUtils.java:156)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleReportingInheritance(DefaultModelInheritanceAssembler.java:277)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:170)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:56)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:605)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFile(DefaultMavenProjectBuilder.java:298)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:276)
>         at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:509)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:441)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:485)
>         at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:345)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:276)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>         at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>         at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>         at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> [INFO] ----------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Sat Nov 12 13:45:14 IST 2005
> [INFO] Final Memory: 1M/2M
> [INFO] ----------------------------------------------------------------------------
> I tracked down the problem to the <reporting> element in project A, because when I remove it, things work again. I believe there's a problem in the way maven merges reporting info from parent POMs (well..duh).
> Here is the reporting data in project A:
>   <reporting>
>     <plugins>
>       <plugin>
>         <artifactId>maven-javadoc-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>javadoc</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <artifactId>maven-project-info-reports-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>dependencies</report>
>               <report>project-team</report>
>               <report>license</report>
>               <report>scm</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>changes-maven-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>changes-report</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>surefire-report-maven-plugin</artifactId>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>taglist-maven-plugin</artifactId>
>       </plugin>
>     </plugins>
>   </reporting>
> It appears it is not a specific plugin, but rather the appearance of the <reportSet> element. I've tried with both the javadoc and the project-info plugins - both cause the NPE when they have atleast one <reportSet> element. Having an empty <reportSets> (with no <reportSet> elements) does not cause the exception.

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[jira] Updated: (MNG-1529) NPE when inheriting report sets

Posted by "Brett Porter (JIRA)" <ji...@codehaus.org>.
     [ http://jira.codehaus.org/browse/MNG-1529?page=all ]

Brett Porter updated MNG-1529:
------------------------------

    Fix Version: 2.0.1

> NPE when inheriting report sets
> -------------------------------
>
>          Key: MNG-1529
>          URL: http://jira.codehaus.org/browse/MNG-1529
>      Project: Maven 2
>         Type: Bug
>   Components: maven-project
>     Versions: 2.0
>  Environment: JDK 1.5.0_05, Kubuntu linux 5.1
>     Reporter: Arik Kfir
>      Fix For: 2.0.1

>
>
> I have three POMs:
> A: serves as a template for new projects
> B: Extends A - the root POM of a multi-module project
> C: Extends B - a module in the B project
> One of the things project A defines is the <reporting> element. However, when I try to build project B, I get the following exception:
> arik@corleon:~/projects/swinger$ mvn clean
> [INFO] Scanning for projects...
> [INFO] snapshot org.corleon:parent:1.1-SNAPSHOT: checking for updates from corleon
> [INFO] ----------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ----------------------------------------------------------------------------
> [INFO] null
> [INFO] ----------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException
>         at java.util.TreeMap.compare(TreeMap.java:1093)
>         at java.util.TreeMap.getEntry(TreeMap.java:347)
>         at java.util.TreeMap.containsKey(TreeMap.java:204)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginDefinitions(ModelUtils.java:324)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginLists(ModelUtils.java:156)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleReportingInheritance(DefaultModelInheritanceAssembler.java:277)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:170)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:56)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:605)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFile(DefaultMavenProjectBuilder.java:298)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:276)
>         at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:509)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:441)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:485)
>         at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:345)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:276)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>         at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>         at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>         at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> [INFO] ----------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Sat Nov 12 13:45:14 IST 2005
> [INFO] Final Memory: 1M/2M
> [INFO] ----------------------------------------------------------------------------
> I tracked down the problem to the <reporting> element in project A, because when I remove it, things work again. I believe there's a problem in the way maven merges reporting info from parent POMs (well..duh).
> Here is the reporting data in project A:
>   <reporting>
>     <plugins>
>       <plugin>
>         <artifactId>maven-javadoc-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>javadoc</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <artifactId>maven-project-info-reports-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>dependencies</report>
>               <report>project-team</report>
>               <report>license</report>
>               <report>scm</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>changes-maven-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>changes-report</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>surefire-report-maven-plugin</artifactId>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>taglist-maven-plugin</artifactId>
>       </plugin>
>     </plugins>
>   </reporting>
> It appears it is not a specific plugin, but rather the appearance of the <reportSet> element. I've tried with both the javadoc and the project-info plugins - both cause the NPE when they have atleast one <reportSet> element. Having an empty <reportSets> (with no <reportSet> elements) does not cause the exception.

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[jira] Commented: (MNG-1529) NPE when inheriting report sets

Posted by "Joakim Erdfelt (JIRA)" <ji...@codehaus.org>.
    [ http://jira.codehaus.org/browse/MNG-1529?page=comments#action_52663 ] 

Joakim Erdfelt commented on MNG-1529:
-------------------------------------

Pardon the fat-fingered, incorrectly labeled filename.

The attachment is for this jira - MNG-1529.
The filename is wrong in saying (MNG-1539). sorry.


> NPE when inheriting report sets
> -------------------------------
>
>          Key: MNG-1529
>          URL: http://jira.codehaus.org/browse/MNG-1529
>      Project: Maven 2
>         Type: Bug
>   Components: Inheritence and Interpolation
>     Versions: 2.0
>  Environment: JDK 1.5.0_05, Kubuntu linux 5.1
>     Reporter: Arik Kfir
>      Fix For: 2.0.1
>  Attachments: MNG-1539-test-case.tar.bz2
>
>
> I have three POMs:
> A: serves as a template for new projects
> B: Extends A - the root POM of a multi-module project
> C: Extends B - a module in the B project
> One of the things project A defines is the <reporting> element. However, when I try to build project B, I get the following exception:
> arik@corleon:~/projects/swinger$ mvn clean
> [INFO] Scanning for projects...
> [INFO] snapshot org.corleon:parent:1.1-SNAPSHOT: checking for updates from corleon
> [INFO] ----------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ----------------------------------------------------------------------------
> [INFO] null
> [INFO] ----------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException
>         at java.util.TreeMap.compare(TreeMap.java:1093)
>         at java.util.TreeMap.getEntry(TreeMap.java:347)
>         at java.util.TreeMap.containsKey(TreeMap.java:204)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginDefinitions(ModelUtils.java:324)
>         at org.apache.maven.project.ModelUtils.mergeReportPluginLists(ModelUtils.java:156)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleReportingInheritance(DefaultModelInheritanceAssembler.java:277)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:170)
>         at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleModelInheritance(DefaultModelInheritanceAssembler.java:56)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:605)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFile(DefaultMavenProjectBuilder.java:298)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:276)
>         at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:509)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:441)
>         at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:485)
>         at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:345)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:276)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>         at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>         at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>         at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> [INFO] ----------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Sat Nov 12 13:45:14 IST 2005
> [INFO] Final Memory: 1M/2M
> [INFO] ----------------------------------------------------------------------------
> I tracked down the problem to the <reporting> element in project A, because when I remove it, things work again. I believe there's a problem in the way maven merges reporting info from parent POMs (well..duh).
> Here is the reporting data in project A:
>   <reporting>
>     <plugins>
>       <plugin>
>         <artifactId>maven-javadoc-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>javadoc</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <artifactId>maven-project-info-reports-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>dependencies</report>
>               <report>project-team</report>
>               <report>license</report>
>               <report>scm</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>changes-maven-plugin</artifactId>
>         <reportSets>
>           <reportSet>
>             <reports>
>               <report>changes-report</report>
>             </reports>
>           </reportSet>
>         </reportSets>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>surefire-report-maven-plugin</artifactId>
>       </plugin>
>       <plugin>
>         <groupId>org.codehaus.mojo</groupId>
>         <artifactId>taglist-maven-plugin</artifactId>
>       </plugin>
>     </plugins>
>   </reporting>
> It appears it is not a specific plugin, but rather the appearance of the <reportSet> element. I've tried with both the javadoc and the project-info plugins - both cause the NPE when they have atleast one <reportSet> element. Having an empty <reportSets> (with no <reportSet> elements) does not cause the exception.

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