[MDEP-448] NullPointerException when classifier sources was chosen

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8
• Fix Version/s: 2.9
• Component/s: copy-dependencies
• Environment: windows 7 x64, mvn 3.0.5, java 7.0.51
• Assignee: Karl Heinz Marbaise
• Reporter: Reguel Wermelinger
• Created: 05/Jun/14 07:35
• Updated: 08/Sep/14 13:35
• Resolved: 08/Sep/14 13:35

Description

The execution of the copy-dependencies goal fails if the classifier "sources" is selected the mojo fails with a NullPointerException.

Somehow i can work around the bug by removing the classifier afterwards: <stripClassifier>true</stripClassifier>.
But then the <overwriteIfNewer> flag is ignored. which results in lot's of unwanted file copy changes during my builds.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies (thirdparty) on project ch.ivyteam.testarea.depency: Execution thirdparty of goal org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies failed. NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies (thirdparty) on project ch.ivyteam.testarea.depency: Execution thirdparty of goal org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies 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:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	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 thirdparty of goal org.apache.maven.plugins:maven-dependency-plugin:2.8:copy-dependencies 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.dependency.fromDependencies.CopyDependenciesMojo.doExecute(CopyDependenciesMojo.java:156)
	at org.apache.maven.plugin.dependency.AbstractDependencyMojo.execute(AbstractDependencyMojo.java:167)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
	... 20 more