Mikaël Barbero created ARIES-1159:
-------------------------------------

             Summary: NPE in org.apache.aries.versioning.plugin
                 Key: ARIES-1159
                 URL: https://issues.apache.org/jira/browse/ARIES-1159
             Project: Aries
          Issue Type: Bug
            Reporter: Mikaël Barbero


Hi, 

I'm trying to support semantic versioning of exported packages on Guava 
(https://code.google.com/p/guava-libraries/issues/detail?id=1682) with the help 
of the plugin org.apache.aries.versioning:org.apache.aries.versioning.plugin.

Unfortunately, I hit a NPE when trying to do the build:

[ERROR] Failed to execute goal 
org.apache.aries.versioning:org.apache.aries.versioning.plugin:0.1.0:version-check
 (default-verify) on project guava: Execution default-verify of goal 
org.apache.aries.versioning:org.apache.aries.versioning.plugin:0.1.0:version-check
 failed. NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal 
org.apache.aries.versioning:org.apache.aries.versioning.plugin:0.1.0:version-check
 (default-verify) on project guava: Execution default-verify of goal 
org.apache.aries.versioning:org.apache.aries.versioning.plugin:0.1.0:version-check
 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 
default-verify of goal 
org.apache.aries.versioning:org.apache.aries.versioning.plugin:0.1.0:version-check
 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.aries.versioning.check.BundleCompatibility.visitPackage(BundleCompatibility.java:302)
        at 
org.apache.aries.versioning.check.BundleCompatibility.invoke(BundleCompatibility.java:133)
        at 
org.apache.aries.versioning.mojo.VersionCheckerMojo.execute(VersionCheckerMojo.java:128)
        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        ... 20 more
[ERROR] 

You an find the experiment @ 
https://github.com/mbarbero/guava-libraries/tree/issue1682



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