[KARAF-4254] NPE when building karaf-assembly target with installAllFeaturesByDefault=false

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4
• Fix Version/s: 4.0.4
• Component/s: karaf

Environment

Win7 64 bit; jdk 1.8.0_25

Tested with two maven versions:

Apache Maven 3.1.1 (0728685237757ffbf44136acec0402957f723d9a; 2013-09-17 18:22:22+0300)
Maven home: D:\java\apache-maven-3.1.1
Java version: 1.8.0_25, vendor: Oracle Corporation
Java home: D:\runtimes\jdk\win64\jdk1.8.0_25\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"

Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T18:41:47+02:00)
Maven home: d:\java\apache-maven-3.3.9
Java version: 1.8.0_25, vendor: Oracle Corporation
Java home: D:\runtimes\jdk\win64\jdk1.8.0_25\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"

• Assignee: Jean-Baptiste Onofré
• Reporter: Tony Ganchev
• Created: 08/Jan/16 12:33
• Updated: 16/Sep/18 04:35
• Resolved: 08/Jan/16 14:28

Description

I have a karaf sample project spanning multiple bundles that get combined into a single KAR. The KAR is then packaged through a karaf-assembly module in a karaf distro.

The project can be found at: https://github.com/tonyganchev/blog/commit/807ed40c80b597d90ecb955b28ccf613b7e02bfd (pointed to the revision that introduces the issue)

When setting installAllFeaturesByDefault to false I get the following exception (on 4.0.4-SNAPSHOT in this case, but essentially the same on all 4.0.x versions)

[ERROR] Failed to execute goal org.apache.karaf.tooling:karaf-maven-plugin:4.0.4-SNAPSHOT:assembly (default-assembly) on project karaf-assembly: Unable to build assembly: NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.karaf.tooling:karaf-maven-plugin:4.0.4-SNAPSHOT:assembly (default-assembly) on project karaf-assembly: Unable to build assembly
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
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:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
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.MojoExecutionException: Unable to build assembly
at org.apache.karaf.tooling.AssemblyMojo.execute(AssemblyMojo.java:234)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
... 20 more
Caused by: java.lang.NullPointerException
at org.apache.karaf.features.internal.region.SubsystemResolver.collectPrerequisites(SubsystemResolver.java:175)
at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:223)
at org.apache.karaf.profile.assembly.Builder.resolve(Builder.java:1214)
at org.apache.karaf.profile.assembly.Builder.startupStage(Builder.java:1002)
at org.apache.karaf.profile.assembly.Builder.doGenerateAssembly(Builder.java:606)
at org.apache.karaf.profile.assembly.Builder.generateAssembly(Builder.java:389)
at org.apache.karaf.tooling.AssemblyMojo.doExecute(AssemblyMojo.java:392)
at org.apache.karaf.tooling.AssemblyMojo.execute(AssemblyMojo.java:228)
... 22 more