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https://issues.apache.org/jira/browse/KARAF-504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006228#comment-13006228
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David Jencks commented on KARAF-504:
------------------------------------
Note that in trunk the feature-maven-plugin works fine with maven 3. I'm
unlikely to fix this in the 2.2.x branch but I think I fixed this early on in
my work in trunk, so looking at my commits might find a solution.
Also the <<< features-maven-plugin means that maven is forking the lifecycle.
In trunk this turned out to result in all the mojos getting executed at least
twice. Removing the @execution javadoc tags in the mojos fixed this.
> Features Maven Plugin does not work with Maven 3
> ------------------------------------------------
>
> Key: KARAF-504
> URL: https://issues.apache.org/jira/browse/KARAF-504
> Project: Karaf
> Issue Type: Bug
> Components: tooling
> Affects Versions: 2.2.0
> Environment: windows, linux,
> Reporter: Dan Tran
> Fix For: 2.2.1
>
>
> it fails with any simple pom ( even with one bundle )
> here is the log
> [INFO] Scanning for projects...
> [INFO]
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building MC - JMS Client 1.0.0.CI-SNAPSHOT
> [INFO]
> ------------------------------------------------------------------------
> [INFO]
> [INFO] >>> features-maven-plugin:2.2.0:generate-features-xml (generate) @
> mc-jmsclient >>>
> [INFO]
> [INFO] --- maven-resources-plugin:2.5:resources (default-resources) @
> mc-jmsclient ---
> [debug] execute contextualize
> [INFO] Using 'UTF-8' encoding to copy filtered resources.
> [INFO] Copying 1 resource
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @
> mc-jmsclient ---
> [INFO] No sources to compile
> [INFO]
> [INFO] <<< features-maven-plugin:2.2.0:generate-features-xml (generate) @
> mc-jmsclient <<<
> [INFO]
> [INFO] --- features-maven-plugin:2.2.0:generate-features-xml (generate) @
> mc-jmsclient ---
> [INFO] Step 1: Building list of provided bundle exports
> [ERROR]
> java.lang.NullPointerException
> at
> org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.injectSession(DefaultLegacyArtifactCollector.java:77)
> at
> org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.collect(DefaultLegacyArtifactCollector.java:99)
> at
> org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.collect(DefaultLegacyArtifactCollector.java:782)
> at
> org.apache.maven.shared.dependency.tree.DefaultDependencyTreeBuilder.buildDependencyTree(DefaultDependencyTreeBuilder.java:97)
> at
> org.apache.karaf.tooling.features.GenerateFeaturesXmlMojo.readKernelBundles(GenerateFeaturesXmlMojo.java:190)
> at
> org.apache.karaf.tooling.features.GenerateFeaturesXmlMojo.execute(GenerateFeaturesXmlMojo.java:147)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
> 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)
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