Maven 2.x Ant Plugin

NullPointerException when maven-javadoc-plugin configuration defines multiple group elements within a groups list element.

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: 2.1
  • Fix Version/s: 2.2
  • Labels:
    None
  • Environment:
    $ mvn --version
    Maven version: 2.0.10
    Java version: 1.6.0_0
    OS name: "linux" version: "2.6.29-gentoo-r3" arch: "amd64" Family: "unix"
  • Patch Submitted:
    Yes
  • Number of attachments :
    1

Description

When attempting to run mvn ant:ant on sesame-2.2.4 available here [1]. A NullPointerException is raised. [2] for build log segment.

It seems that when a pom ( or a parents pom ) defines the following configuration the existing code the error was occuring. I have assumed in my patch that this is the only valid way of defining groups. But at least the fix is small and easy for you to figure out.

<reporting>
  <plugins>
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-javadoc-plugin</artifactId>
      <configuration>
        <aggregate>true</aggregate>
        <source>1.5</source>
        <groups>
          <group>
            <title>Repository API</title>
            <packages>org.openrdf.repository*</packages>
          </group>
          <group>
            <title>RDF Model API</title>
            <packages>org.openrdf.model*</packages>
          </group>
          ...
          ...
        </groups>
        <links>
          <link>http://java.sun.com/j2se/1.5.0/docs/api/</link>
          <link>http://repository.aduna-software.org/docs/info.aduna/api/</link>
        </links>
      </configuration>

[1] svn co http://repo.aduna-software.org/svn/org.openrdf/sesame/tags/2.2.4/

[2]

[INFO] Building OpenRDF Sesame Core                                            
[INFO]    task-segment: [ant:ant]                                              
[INFO] ------------------------------------------------------------------------
[INFO] [ant:ant]                                                               
[INFO] Wrote Ant project for sesame-core to /home/alistair/gentoo/tmp/sesame-2.2.4/core
[INFO] ------------------------------------------------------------------------        
[INFO] Building OpenRDF Sesame: Model                                                  
[INFO]    task-segment: [ant:ant]                                                      
[INFO] ------------------------------------------------------------------------        
[INFO] [ant:ant]                                                                       
[INFO] ------------------------------------------------------------------------        
[ERROR] FATAL ERROR                                                                    
[INFO] ------------------------------------------------------------------------        
[INFO] null                                                                            
[INFO] ------------------------------------------------------------------------        
[INFO] Trace                                                                           
java.lang.NullPointerException
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.escapeXml(PrettyPrintXMLWriter.java:151)
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.escapeXmlAttribute(PrettyPrintXMLWriter.java:166)
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.addAttribute(PrettyPrintXMLWriter.java:190)
        at org.apache.maven.plugin.ant.AntBuildWriterUtil.writeJavadocTask(AntBuildWriterUtil.java:473)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeJavadocTarget(AntBuildWriter.java:991)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeGeneratedBuildXml(AntBuildWriter.java:304)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeBuildXmls(AntBuildWriter.java:113)
        at org.apache.maven.plugin.ant.AntMojo.execute(AntMojo.java:112)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:453)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:559)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:513)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:483)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:331)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:292)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:301)
        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:616)
        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: 3 seconds
[INFO] Finished at: Tue Jun 16 00:03:36 NZST 2009
[INFO] Final Memory: 19M/184M
[INFO] ------------------------------------------------------------------------

Activity

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Benjamin Bentmann made changes -
Field Original Value New Value
Description When attempting to run mvn ant:ant on sesame-2.2.4 available here [1]. A NullPointerException is raised. [2] for build log segment.

It seems that when a pom ( or a parents pom ) defines the following configuration the existing code the error was occuring. I have assumed in my patch that this is the only valid way of defining groups. But at least the fix is small and easy for you to figure out.

<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<configuration>
<aggregate>true</aggregate>
<source>1.5</source>
<groups>
<group>
<title>Repository API</title>
<packages>org.openrdf.repository*</packages>
</group>
<group>
<title>RDF Model API</title>
<packages>org.openrdf.model*</packages>
</group>
...
...
</groups>
<links>
<link>http://java.sun.com/j2se/1.5.0/docs/api/&lt;/link>
<link>http://repository.aduna-software.org/docs/info.aduna/api/&lt;/link>
</links>
</configuration>

[1] svn co http://repo.aduna-software.org/svn/org.openrdf/sesame/tags/2.2.4/

[2]

[INFO] Building OpenRDF Sesame Core
[INFO] task-segment: [ant:ant]
[INFO] ------------------------------------------------------------------------
[INFO] [ant:ant]
[INFO] Wrote Ant project for sesame-core to /home/alistair/gentoo/tmp/sesame-2.2.4/core
[INFO] ------------------------------------------------------------------------
[INFO] Building OpenRDF Sesame: Model
[INFO] task-segment: [ant:ant]
[INFO] ------------------------------------------------------------------------
[INFO] [ant:ant]
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] null
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.escapeXml(PrettyPrintXMLWriter.java:151)
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.escapeXmlAttribute(PrettyPrintXMLWriter.java:166)
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.addAttribute(PrettyPrintXMLWriter.java:190)
        at org.apache.maven.plugin.ant.AntBuildWriterUtil.writeJavadocTask(AntBuildWriterUtil.java:473)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeJavadocTarget(AntBuildWriter.java:991)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeGeneratedBuildXml(AntBuildWriter.java:304)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeBuildXmls(AntBuildWriter.java:113)
        at org.apache.maven.plugin.ant.AntMojo.execute(AntMojo.java:112)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:453)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:559)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:513)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:483)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:331)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:292)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:301)
        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:616)
        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: 3 seconds
[INFO] Finished at: Tue Jun 16 00:03:36 NZST 2009
[INFO] Final Memory: 19M/184M
[INFO] ------------------------------------------------------------------------ 		When attempting to run mvn ant:ant on sesame-2.2.4 available here [1]. A NullPointerException is raised. [2] for build log segment.

It seems that when a pom ( or a parents pom ) defines the following configuration the existing code the error was occuring. I have assumed in my patch that this is the only valid way of defining groups. But at least the fix is small and easy for you to figure out.
{code:xml}
<reporting>
  <plugins>
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-javadoc-plugin</artifactId>
      <configuration>
        <aggregate>true</aggregate>
        <source>1.5</source>
        <groups>
          <group>
            <title>Repository API</title>
            <packages>org.openrdf.repository*</packages>
          </group>
          <group>
            <title>RDF Model API</title>
            <packages>org.openrdf.model*</packages>
          </group>
          ...
          ...
        </groups>
        <links>
          <link>http://java.sun.com/j2se/1.5.0/docs/api/&lt;/link>
          <link>http://repository.aduna-software.org/docs/info.aduna/api/&lt;/link>
        </links>
      </configuration>
{code}
[1] svn co http://repo.aduna-software.org/svn/org.openrdf/sesame/tags/2.2.4/

[2]

{noformat}
[INFO] Building OpenRDF Sesame Core
[INFO] task-segment: [ant:ant]
[INFO] ------------------------------------------------------------------------
[INFO] [ant:ant]
[INFO] Wrote Ant project for sesame-core to /home/alistair/gentoo/tmp/sesame-2.2.4/core
[INFO] ------------------------------------------------------------------------
[INFO] Building OpenRDF Sesame: Model
[INFO] task-segment: [ant:ant]
[INFO] ------------------------------------------------------------------------
[INFO] [ant:ant]
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] null
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.escapeXml(PrettyPrintXMLWriter.java:151)
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.escapeXmlAttribute(PrettyPrintXMLWriter.java:166)
        at org.codehaus.plexus.util.xml.PrettyPrintXMLWriter.addAttribute(PrettyPrintXMLWriter.java:190)
        at org.apache.maven.plugin.ant.AntBuildWriterUtil.writeJavadocTask(AntBuildWriterUtil.java:473)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeJavadocTarget(AntBuildWriter.java:991)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeGeneratedBuildXml(AntBuildWriter.java:304)
        at org.apache.maven.plugin.ant.AntBuildWriter.writeBuildXmls(AntBuildWriter.java:113)
        at org.apache.maven.plugin.ant.AntMojo.execute(AntMojo.java:112)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:453)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:559)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:513)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:483)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:331)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:292)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:301)
        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:616)
        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: 3 seconds
[INFO] Finished at: Tue Jun 16 00:03:36 NZST 2009
[INFO] Final Memory: 19M/184M
[INFO] ------------------------------------------------------------------------
{noformat}
Benjamin Bentmann made changes -
Affects Version/s 2.2 [ 14361 ]
Affects Version/s 2.1 [ 13504 ]
Benjamin Bentmann made changes -
Fix Version/s 2.2 [ 14361 ]
Resolution Fixed [ 1 ]
Status Open [ 1 ] Closed [ 6 ]
Assignee Benjamin Bentmann [ bentmann ]

People

  • Assignee:
    Benjamin Bentmann
    Reporter:
    Alistair Bush
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Dates

  • Created:
    Updated:
    Resolved: