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https://issues.apache.org/jira/browse/KARAF-3783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14583280#comment-14583280
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Christian Schneider commented on KARAF-3783:
--------------------------------------------
The artifact was not present in the local repo so we need to call
resolveArtifact in this case. I also discovered another bug as the
feature.getBundles() is unmodifiable. Switched to getBundle() which works.
> NPE in karaf-maven-plugin features-export-meta-data
> ---------------------------------------------------
>
> Key: KARAF-3783
> URL: https://issues.apache.org/jira/browse/KARAF-3783
> Project: Karaf
> Issue Type: Bug
> Components: karaf-tooling
> Affects Versions: 4.0.0.M3
> Reporter: Christian Schneider
> Assignee: Christian Schneider
> Fix For: 4.0.0
>
> Attachments: pom.xml
>
>
> Safe attached pom.xml to a firectory and execute:
> mvn install -e
> ----
> project npe: Execution features-add-to-repository of goal
> org.apache.karaf.tooling:karaf-maven-plugin:4.0.0-SNAPSHOT:features-export-meta-data
> failed.
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224)
> 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:116)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
> at
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
> at
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:355)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
> at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
> at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:216)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:160)
> 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:289)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
> Caused by: org.apache.maven.plugin.PluginExecutionException: Execution
> features-add-to-repository of goal
> org.apache.karaf.tooling:karaf-maven-plugin:4.0.0-SNAPSHOT:features-export-meta-data
> failed.
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:143)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
> ... 19 more
> Caused by: java.lang.NullPointerException
> at java.io.FileInputStream.<init>(FileInputStream.java:138)
> at
> org.apache.karaf.tooling.features.ExportFeatureMetaDataMojo.getManifest(ExportFeatureMetaDataMojo.java:143)
> at
> org.apache.karaf.tooling.features.ExportFeatureMetaDataMojo.getBundleSymbolicName(ExportFeatureMetaDataMojo.java:136)
> at
> org.apache.karaf.tooling.features.ExportFeatureMetaDataMojo.mergeFeature(ExportFeatureMetaDataMojo.java:96)
> at
> org.apache.karaf.tooling.features.ExportFeatureMetaDataMojo.execute(ExportFeatureMetaDataMojo.java:75)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
> ... 20 more
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