NullPointerException in DefaultArtifactCollector for relocated
resolvedArtifacts with different version ranges and available versions.
--------------------------------------------------------------------------------------------------------------------------------------
Key: MNG-2861
URL: http://jira.codehaus.org/browse/MNG-2861
Project: Maven 2
Issue Type: Bug
Components: Artifacts
Affects Versions: 2.0.5
Reporter: Micah Whitacre
In a remoteRepository that I am populating I have a project. Previously I was
deploying artifacts with an old groupId and then decided to switch to having a
new more descriptive groupId. For the old groupId I have deployed versions 1.0
and 1.1. For the new groupId I have deployed 1.2 and 2.0. I deployed a
relocation POM to the old groupId for the 1.2 version. I also updated the
metadata.xml files to include 1.2 as an available version. This way projects
using version ranges [1,2) will be able to pick up the newest version. So in
the repository I now have:
oldgroupId:project:1.0
oldgroupId:project:1.1
oldgroupId:project:1.2 - redirecting to newgroupId:project:1.2
newgroupId:project:1.2
newgroupId:project:2.0
The oldgroupId's metadata lists the available versions as [1.0,1.1,1.2]. The
newgroupId's metadata lists the available versions has [1,2].
I have 3 additional projects A, B, C. A depends on B and C. B depends on
oldgroupId:project:[1,2). Project B has also finished development and been
released so we are avoiding rereleasing it for the groupId change. C depends
on newgroupId:project:[2,3). When I try to build project A, Maven dies and
gives me the following stack trace.
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] null
[INFO] ------------------------------------------------------------------------
[DEBUG] Trace
java.lang.NullPointerException
at
org.apache.maven.artifact.resolver.DefaultArtifactCollector.recurse(DefaultArtifactCollector.java:168)
at
org.apache.maven.artifact.resolver.DefaultArtifactCollector.recurse(DefaultArtifactCollector.java:305)
at
org.apache.maven.artifact.resolver.DefaultArtifactCollector.recurse(DefaultArtifactCollector.java:305)
at
org.apache.maven.artifact.resolver.DefaultArtifactCollector.collect(DefaultArtifactCollector.java:70)
at
org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:284)
at
org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:272)
at
org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:243)
at
org.apache.maven.plugin.DefaultPluginManager.resolveTransitiveDependencies(DefaultPluginManager.java:1142)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:374)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:459)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:330)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:123)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Since the key for common dependency is the same it tries to resolve the
dependency by restricting the version ranges of the current and previous
resolved artifacts. It restricts the previous version to the range of to be
[2,3). However since the only available versions are [1.0,1.1,1.2] it cannot
find and match and on line 168 it calls toString() on the returned match which
is null.
I realize that the repository setup might not be completely correct, however
this is still an issue since Maven crashes without giving any appropriate
message or warning to the cause.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.codehaus.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
