I still don't have a solution to my problem and really need someone who
understands the internals of default-plexus-container to help me through
the problem. Please see, below, for a high-level description of the
problem. What I've found is that what is happening is that I'm getting
this exception (root of the matter):
Caused by: java.lang.IllegalArgumentException
at
sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorI
mpl.java:63)
at java.lang.reflect.Field.set(Field.java:656)
at
org.codehaus.plexus.component.composition.FieldComponentComposer.assignR
equirementToField(FieldComponentComposer.java:137)
The "Field" in question here is has a class of
org.apache.maven.plugin.jar.AbstractJarMojo, a "name" of jarArchiver,
and a "type" of org.codehaus.plexus.archiver.jar.JarArchiver. The line
of code that is throwing the IllegalArgumentException is:
field.set( component, dependency );
The "component", above is a JarMojo
(org.apache.maven.plugin.jar.JarMojo) and the "dependency" is a
JarArchiver (org.codehaus.plexus.archiver.jar.JarArchiver). Nothing
seems out-of-whack to me. As stated, below, everything works fine when
I'm simply building the subdirectory - only when I try to do a reactor
build of the parent (which includes this module as a child) do I get
this problem.
Can anyone point me in a direction that might lead to figuring out what
is going wrong? I can't debug into Field.set (part of the reflection
api) and I see no reason why java.lang.reflect would be failing -
especially since we execute the exact same code in other cases without
any problem.
Help! Thanks. -- Eric
________________________________
From: Swenson, Eric
Sent: Thursday, October 12, 2006 9:18 PM
To: 'Maven Developers List'
Subject: debugging maven with eclipse
Can anyone point me to instructions on how to use eclipse to debug
maven? I'm having a problem that no one, so far, has commented on -
namely that when I do a reactor build of my project (top-level with
sub-projects), I get the error (when doing "mvn install"):
[ERROR] BUILD ERROR
[INFO]
------------------------------------------------------------------------
[INFO] Internal error in the plugin manager executing goal
'org.apache.maven.plugins:maven-jar-plugin:2.1:jar': Unable to find the
mojo 'org.apache.maven.plugins:maven-jar-plugin:2.1:jar' in the plugin
'org.apache.maven.plugins:maven-jar-plugin'
But when I go to each subdirectory in the project and do a "mvn
install", they all complete successfully. Only when I try to run from
the parent directory do I have this problem. Running with the -X -e
options doesn't give me anything useful.
Is there an easy way to produce an eclipse project from the maven2
source tree? Or do I have to manually all all the "src" directories in
a new project? I'd like to run under the debugger and step through the
execution to pinpoint the issue. Thanks. -- Eric
