Graham Leggett created DIRSTUDIO-1245:
-----------------------------------------

             Summary: Build failure on directory-studio-2.0.0.v20180908-M14 
tag: org.apache.maven.InternalErrorException: Internal error: 
java.lang.NullPointerException
                 Key: DIRSTUDIO-1245
                 URL: https://issues.apache.org/jira/browse/DIRSTUDIO-1245
             Project: Directory Studio
          Issue Type: Bug
          Components: studio-build
    Affects Versions: 2.0.0-M14
            Reporter: Graham Leggett


The tag directory-studio-2.0.0.v20180908-M14 fails to build as below.

Given that the trunk/master build is broken as per 
https://issues.apache.org/jira/browse/DIRSTUDIO-1244, it is possible that 
hiding under that build breakage is this build breakage:

{noformat}
[ERROR] Internal error: java.lang.NullPointerException -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: 
java.lang.NullPointerException
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:120)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    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: java.lang.NullPointerException
    at 
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.downloadArtifact
 (SimpleArtifactRepository.java:713)
    at 
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.downloadArtifact
 (SimpleArtifactRepository.java:640)
    at 
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifact
 (SimpleArtifactRepository.java:772)
    at 
org.eclipse.tycho.repository.p2base.artifact.repository.RepositoryArtifactProvider.getArtifactFromOneMirror
 (RepositoryArtifactProvider.java:229)
    at 
org.eclipse.tycho.repository.p2base.artifact.repository.RepositoryArtifactProvider.getArtifactFromAnyMirror
 (RepositoryArtifactProvider.java:212)
    at 
org.eclipse.tycho.repository.p2base.artifact.repository.RepositoryArtifactProvider.access$1
 (RepositoryArtifactProvider.java:207)
    at 
org.eclipse.tycho.repository.p2base.artifact.repository.RepositoryArtifactProvider$1.perform
 (RepositoryArtifactProvider.java:187)
    at 
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifact
 (SimpleArtifactRepository.java:755)
    at 
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifacts
 (SimpleArtifactRepository.java:832)
    at 
org.eclipse.tycho.repository.p2base.artifact.repository.RepositoryArtifactProvider.getArtifactFromAnyChildRepository
 (RepositoryArtifactProvider.java:199)
    at 
org.eclipse.tycho.repository.p2base.artifact.repository.RepositoryArtifactProvider.getArtifactFromAnyFormatAvailableInRepository
 (RepositoryArtifactProvider.java:168)
    at 
org.eclipse.tycho.repository.p2base.artifact.repository.RepositoryArtifactProvider.getArtifactFromAnySource
 (RepositoryArtifactProvider.java:154)
    at 
org.eclipse.tycho.repository.p2base.artifact.provider.CompositeArtifactProviderBaseImpl.getArtifact
 (CompositeArtifactProviderBaseImpl.java:52)
    at 
org.eclipse.tycho.repository.local.MirroringArtifactProvider.downloadCanonicalArtifact
 (MirroringArtifactProvider.java:244)
    at 
org.eclipse.tycho.repository.local.MirroringArtifactProvider.downloadMostSpecificNeededFormatOfArtifact
 (MirroringArtifactProvider.java:237)
    at 
org.eclipse.tycho.repository.local.MirroringArtifactProvider.downloadArtifact 
(MirroringArtifactProvider.java:222)
    at 
org.eclipse.tycho.repository.local.MirroringArtifactProvider.makeOneFormatLocallyAvailable
 (MirroringArtifactProvider.java:211)
    at 
org.eclipse.tycho.repository.local.MirroringArtifactProvider.makeLocallyAvailable
 (MirroringArtifactProvider.java:182)
    at 
org.eclipse.tycho.repository.local.MirroringArtifactProvider.getArtifactFile 
(MirroringArtifactProvider.java:121)
    at 
org.eclipse.tycho.repository.p2base.artifact.provider.CompositeArtifactProvider.getArtifactFile
 (CompositeArtifactProvider.java:85)
    at org.eclipse.tycho.p2.target.TargetPlatformBaseImpl.getLocalArtifactFile 
(TargetPlatformBaseImpl.java:128)
    at org.eclipse.tycho.p2.resolver.P2ResolverImpl.addUnit 
(P2ResolverImpl.java:254)
    at org.eclipse.tycho.p2.resolver.P2ResolverImpl.toResolutionResult 
(P2ResolverImpl.java:217)
    at org.eclipse.tycho.p2.resolver.P2ResolverImpl.resolveDependencies 
(P2ResolverImpl.java:208)
    at org.eclipse.tycho.p2.resolver.P2ResolverImpl.resolveDependencies 
(P2ResolverImpl.java:115)
    at org.eclipse.tycho.p2.resolver.P2DependencyResolver.doResolveDependencies 
(P2DependencyResolver.java:367)
    at org.eclipse.tycho.p2.resolver.P2DependencyResolver.resolveDependencies 
(P2DependencyResolver.java:335)
    at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject 
(DefaultTychoResolver.java:117)
    at 
org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead 
(TychoMavenLifecycleParticipant.java:95)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:264)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    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)
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e 
switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please 
read the following articles:
[ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/InternalErrorException
{noformat}




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