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https://issues.apache.org/jira/browse/MJLINK-4?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Scholte closed MJLINK-4.
-------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0-alpha-2
Fixed in [r1812236| http://svn.apache.org/viewvc?rev=1812236&view=rev]
Key issue was that only the poms were downloaded, without the main artifacts.
I've added an integration test to confirm this.
Thanks for the provided examples and the good intentions for the fix, which n
the end was only a replacement of one word.
> NPE on execution
> -----------------
>
> Key: MJLINK-4
> URL: https://issues.apache.org/jira/browse/MJLINK-4
> Project: Maven JLink Plugin
> Issue Type: Bug
> Affects Versions: 3.0.0-alpha-1
> Environment: Ubuntu 16.04.3 LTS
> Linux 4.4.0-93-generic
> Reporter: Johannes Boesl
> Assignee: Robert Scholte
> Fix For: 3.0.0-alpha-2
>
>
> When I try to run my maven build I get the following exception:
> {noformat}[ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-jlink-plugin:3.0.0-alpha-1:jlink
> (default-jlink) on project jloadr-jre: Execution default-jlink of goal
> org.apache.maven.plugins:maven-jlink-plugin:3.0.0-alpha-1:jlink failed.:
> NullPointerException -> [Help 1]
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute
> goal org.apache.maven.plugins:maven-jlink-plugin:3.0.0-alpha-1:jlink
> (default-jlink) on project jloadr-jre: Execution default-jlink of goal
> org.apache.maven.plugins:maven-jlink-plugin:3.0.0-alpha-1:jlink failed.
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:154)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:146)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
> at
> org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call(MultiThreadedBuilder.java:200)
> at
> org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call(MultiThreadedBuilder.java:196)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
> at java.base/java.lang.Thread.run(Thread.java:844)
> Caused by: org.apache.maven.plugin.PluginExecutionException: Execution
> default-jlink of goal
> org.apache.maven.plugins:maven-jlink-plugin:3.0.0-alpha-1:jlink failed.
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
> ... 11 more
> Caused by: java.lang.NullPointerException
> at
> org.codehaus.plexus.languages.java.jpms.ResolvePathsRequest$1.toPath(ResolvePathsRequest.java:52)
> at
> org.codehaus.plexus.languages.java.jpms.ResolvePathsRequest$1.toPath(ResolvePathsRequest.java:48)
> at
> org.codehaus.plexus.languages.java.jpms.LocationManager.resolvePaths(LocationManager.java:109)
> at
> org.apache.maven.plugins.jlink.JLinkMojo.preparePaths(JLinkMojo.java:347)
> at org.apache.maven.plugins.jlink.JLinkMojo.execute(JLinkMojo.java:264)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
> ... 12 more{quote}
> {noformat}
> The cause seems to be that the following code in line 337 in JLinkMojo
> returns a collection with only 'null' entries:
> {{Collection<File> dependencyArtifacts = getCompileClasspathElements(
> getProject() );}}
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