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From Adam Crume <adamcr...@gmail.com>
Subject Checkstyle crashes with NullPointerException in DefaultCheckstyleRssGenerator.generateRSS in Maven 3
Date Wed, 19 Jun 2013 23:25:08 GMT
Checkstyle crashes when I run it with Maven 3.0.4, but works with Maven
2.2.1.

I'm afraid I don't know enough about Maven to create a smaller test case
than this:

1. Set JAVA_HOME to a 1.6 JDK
2. Clone http://github.com/nasa/mct
3. Follow the steps in README.md, using Maven 3

[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-checkstyle-plugin:2.4:checkstyle
(published-api-checks) on project mct-platform: Execution
published-api-checks of goal
org.apache.maven.plugins:maven-checkstyle-plugin:2.4:checkstyle failed.
NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute
goal org.apache.maven.plugins:maven-checkstyle-plugin:2.4:checkstyle
(published-api-checks) on project mct-platform: Execution
published-api-checks of goal
org.apache.maven.plugins:maven-checkstyle-plugin:2.4:checkstyle failed.
        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:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        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
published-api-checks of goal
org.apache.maven.plugins:maven-checkstyle-plugin:2.4:checkstyle failed.
        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.NullPointerException
        at
org.apache.maven.plugin.checkstyle.rss.DefaultCheckstyleRssGenerator.generateRSS(DefaultCheckstyleRssGenerator.java:72)
        at
org.apache.maven.plugin.checkstyle.CheckstyleReport.executeReport(CheckstyleReport.java:639)
        at
org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:131)
        at
org.apache.maven.reporting.AbstractMavenReport.execute(AbstractMavenReport.java:76)
        at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        ... 20 more

Adam

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