maven 1.1 beta 2 confuses class loaders while compiling plugin-genererated code
-------------------------------------------------------------------------------
Key: MAVEN-1690
URL: http://jira.codehaus.org/browse/MAVEN-1690
Project: Maven
Type: Bug
Components: core
Versions: 1.1-beta-2
Environment: java version "1.4.2_09"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_09-b05)
Java HotSpot(TM) Client VM (build 1.4.2_09-b05, mixed mode)
Fedora Core 3 Linux on x86
Reporter: Henning Schmiedehausen
Priority: Critical
Attachments: maventest.tar.gz
This is a bit complicated to describe, so I've prepared an example to provoke
this bug.
- Unpack the attached maventest.tar.gz
- install the Torque Plugin into your maven by running
maven -DartifactId=maven-torque-plugin -DgroupId=torque -Dversion=3.1.1
plugin:download
% cd maventest ; maven -q java:compile
build:start:
java:prepare-filesystem:
[mkdir] Created dir: /home/henning/scratch/test/maventest/target/classes
java:compile:
build-om:
torque:init:
BUILD FAILED
File...... /home/henning/.maven/cache/maven-torque-plugin-3.1.1/plugin.jelly
Element... taskdef
Line...... 87
Column.... -1
taskdef A class needed by class org.apache.torque.task.TorqueJDBCTransformTask
cannot be found: org/apache/xerces/dom/CoreDocumentImpl
The missing class is inside the xerces jar, which is put on the classpath by
the torque plugin (see
http://svn.apache.org/viewcvs.cgi/db/torque/maven-plugin/trunk/plugin.jelly?rev=239621&view=markup,
the torque:init task defines the classpath exactly as described on
http://maven.apache.org/faq.html#classloader-property)
Funnily enough, the "jar:jar" task, which runs java:compile as a prerequisite
works:
% cd maventest ; rm -rf target ; maven -q jar:jar
build:start:
java:prepare-filesystem:
[mkdir] Created dir: /home/henning/scratch/test/maventest/target/classes
java:compile:
build-om:
torque:init:
torque:om-check:
torque:om:
torque:init:
Overriding previous definition of reference to torque-classpath
torque:om-generate:
Using contextProperties file:
/home/henning/scratch/test/maventest/project.properties
[torque-data-model] Using classpath
[torque-data-model] Generating to file
/home/henning/scratch/test/maventest/target/src/report.test.om.generation
Overriding previous definition of reference to maven.compile.src.set
[echo] Compiling to /home/henning/scratch/test/maventest/target/classes
[echo]
==========================================================
NOTE: Targetting JVM 1.4, classes
will not run on earlier JVMs
==========================================================
[javac] Compiling 5 source files to
/home/henning/scratch/test/maventest/target/classes
[javac] Note:
/home/henning/scratch/test/maventest/target/src/org/test/BaseJobEntryPeer.java
uses or overrides a deprecated API.
[javac] Note: Recompile with -deprecation for details.
java:jar-resources:
test:prepare-filesystem:
[mkdir] Created dir:
/home/henning/scratch/test/maventest/target/test-classes
[mkdir] Created dir:
/home/henning/scratch/test/maventest/target/test-reports
test:test-resources:
test:compile:
[echo] No test source files to compile.
test:test:
[echo] No tests to run.
jar:jar:
[jar] Building jar: /home/henning/scratch/test/maventest/target/test-1.0.jar
% jar tvf target/test-1.0.jar
0 Tue Sep 13 22:28:48 CEST 2005 META-INF/
280 Tue Sep 13 22:28:46 CEST 2005 META-INF/MANIFEST.MF
0 Tue Sep 13 22:28:48 CEST 2005 org/
0 Tue Sep 13 22:28:48 CEST 2005 org/test/
0 Tue Sep 13 22:28:48 CEST 2005 org/test/map/
7625 Tue Sep 13 22:28:48 CEST 2005 org/test/BaseJobEntry.class
12288 Tue Sep 13 22:28:48 CEST 2005 org/test/BaseJobEntryPeer.class
311 Tue Sep 13 22:28:48 CEST 2005 org/test/JobEntry.class
288 Tue Sep 13 22:28:48 CEST 2005 org/test/JobEntryPeer.class
2043 Tue Sep 13 22:28:48 CEST 2005 org/test/map/JobEntryMapBuilder.class
Both tasks, java:compile and jar:jar work fine and as expected using maven-1.0.2
This is a test case for a real world example, trying to compile and build the
site for the turbine 2.3.2-rc1 release. The classpath error
occurs when the site build process tries to run jdepend to build the metrics.
So the problem doesn't seem to be part of the plugins or
tasks but of the core.
--
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
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
