[ http://jira.codehaus.org/browse/MNG-371?page=all ]
Brett Porter closed MNG-371:
----------------------------
Fix Version: (was: 2.0-alpha-3)
2.0-alpha-2
Resolution: Fixed
> PluginDescriptor location enhancement
> -------------------------------------
>
> Key: MNG-371
> URL: http://jira.codehaus.org/browse/MNG-371
> Project: m2
> Type: Improvement
> Components: maven-core
> Environment: all (linux/jdk1.5)
> Reporter: Kenney Westerhof
> Priority: Minor
> Fix For: 2.0-alpha-2
> Attachments: MNG.patch
>
> Original Estimate: 15 minutes
> Remaining: 15 minutes
>
> I got the following error
> java.lang.IllegalStateException: Plugin descriptor ID incomplete:
> null:null:null
> at
> org.apache.maven.plugin.descriptor.PluginDescriptor.getId(PluginDescriptor.java:112)
> at
> org.apache.maven.plugin.DefaultPluginManager.componentDiscovered(DefaultPluginManager.java:129)
> ....
> I fixed the errormessage to include the location of the Plugin Descriptor
> plugin.xml file.
> To do that, I had to modify PluginDescriptor to add a 'source' attribute;
> modify maven-core's
> MavenPluginDiscoverer to not disregard the source parameter and pass it on to
> maven-plugin-descriptor's
> PluginDescriptorBuilder (retaining backwards compatiblity) and set it there.
> Now the errormessage looks like:
> java.lang.IllegalStateException: Plugin descriptor ID incomplete:
> null:null:null in
> jar:file:/home/forge/.m2/repository/org/apache/maven/plugins/maven-war-plugin/1.0-SNAPSHOT/maven-war-plugin-1.0-20050405.162144-1.jar!/META-INF/maven/plugin.xml
> at
> org.apache.maven.plugin.descriptor.PluginDescriptor.getId(PluginDescriptor.java:112)
> at
> org.apache.maven.plugin.DefaultPluginManager.componentDiscovered(DefaultPluginManager.java:130)
> which is a lot more helpful to me.
> I thought I'd share this with you, hoping you'll find it useful enough to
> incorporate it.
> By the way, this exception is triggered in a new NullpointerException (in
> DefaultPluginManager)
> warning about the PluginDescriptor's version being null; while constructing
> this message another
> exception is triggered, so the original error doesn't get through at all.
> For the record, I tried to enhance Plexus' ComponentSetDescriptor, but found
> I could only access
> the source (parameter) in 2 out of 5 places without API modification, so I
> abandoned this approach,
> but it might prove wise to include the source there, rather than in the
> special case of maven's PluginManager.
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