[ http://jira.codehaus.org/browse/MNG-809?page=all ]
Brett Porter closed MNG-809:
----------------------------
Assign To: Brett Porter
Resolution: Duplicate
> NPE in maven-javadoc-plugin
> ---------------------------
>
> Key: MNG-809
> URL: http://jira.codehaus.org/browse/MNG-809
> Project: Maven 2
> Type: Bug
> Components: maven-plugins
> Versions: 2.0-beta-1
> Environment: Windows 2k3 SP1. JDK 1.5.0_04
> Reporter: md
> Assignee: Brett Porter
> Attachments: JavadocReport.java
>
>
> running m2 javadoc:javadoc fails with an NPE:
> [ERROR] BUILD ERROR
> [INFO]
> ----------------------------------------------------------------------------
> [INFO] Diagnosis: An error has occurred in JavaDocs report generation.
> [INFO]
> ----------------------------------------------------------------------------
> [ERROR] Cause:
> org.apache.maven.plugin.MojoExecutionException: An error has occurred in
> JavaDocs report generation.
> at
> org.apache.maven.reporting.AbstractMavenReport.execute(AbstractMavenReport.java:98)
> at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:346)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:478)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:459)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:441)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:273)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:131)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:186)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:316)
> 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)
> Caused by: org.apache.maven.reporting.MavenReportException: An error has
> occurred in javadoc report generation.
> at
> org.apache.maven.plugin.javadoc.JavadocReport.executeReport(JavadocReport.java:857)
> at
> org.apache.maven.plugin.javadoc.JavadocReport.generate(JavadocReport.java:618)
> at
> org.apache.maven.reporting.AbstractMavenReport.execute(AbstractMavenReport.java:92)
> ... 16 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.maven.plugin.javadoc.JavadocReport.executeReport(JavadocReport.java:800)
> ... 18 more
> I looked at the source code; looks like the variable doctitle needs to be
> initialized with the static variable DEFAULT_DOCTITLE in it's declaration on
> line 337 in org.apache.maven.plugin.javadoc.JavadocReport. I tested this fix
> on my machine and the NPE went away and the target/javadoc folder appeared.
> Attaching the file with the change on line 337.
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