I tried either with the embedded maven runtime or the external maven runtime and in both cases I get the same exception.

After doing some tests I found which maven option trigger this error:
<plugin>
        <artifactId>maven-eclipse-plugin</artifactId>
        <configuration>
                <wtpapplicationxml>true</wtpapplicationxml>
                <wtpversion>1.5</wtpversion>
        </configuration>
</plugin>

If I set wtpapplicationxml to false then I don't have any error...

Should I raise a Jira issue ?

Yann.

Igor Fedorenko a écrit :
You can try using external 2.0.x maven runtime, see [1] for more details how to configure m2eclipse to use external maven runtimes

[1] http://docs.codehaus.org/display/M2ECLIPSE/Maven+Settings


Yann wrote:
Hi,

I tried to use m2eclipse on an EAR project.
When importing an EAR project as a maven project I get the following exception:

15.07.08 19:40:07 CEST: [INFO] [eclipse:m2eclipse]
15.07.08 19:40:07 CEST: [INFO] Adding support for WTP version 1.5.
15.07.08 19:40:07 CEST: [INFO] Using source status cache: C:\soft\dev\eclipse\ganymede\target\mvn-eclipse-cache.properties
15.07.08 19:40:08 CEST: [INFO] Using as WTP server : null
15.07.08 19:40:08 CEST: [FATAL ERROR] org.apache.maven.plugin.eclipse.M2EclipseMojo#execute() caused a linkage error (java.lang.LinkageError). Check the realms:

NOTE:
Plugin realm is: /plugins/org.apache.maven.plugins:maven-eclipse-plugin:[EMAIL PROTECTED]/thread:Worker-39
Container realm is: plexus.core

Realm ID: /plugins/org.apache.maven.plugins:maven-eclipse-plugin:[EMAIL PROTECTED]/thread:Worker-39 urls[0] = file:/c:/soft/javalib/maven2/local-repository/org/apache/maven/plugins/maven-eclipse-plugin/2.5.1/maven-eclipse-plugin-2.5.1.jar urls[1] = file:/c:/soft/javalib/maven2/local-repository/org/codehaus/plexus/plexus-archiver/1.0-alpha-7/plexus-archiver-1.0-alpha-7.jar urls[2] = file:/c:/soft/javalib/maven2/local-repository/org/codehaus/plexus/plexus-utils/1.4.5/plexus-utils-1.4.5.jar urls[3] = file:/c:/soft/javalib/maven2/local-repository/junit/junit/3.8.1/junit-3.8.1.jar urls[4] = file:/c:/soft/javalib/maven2/local-repository/org/apache/maven/maven-plugin-registry/2.0.8/maven-plugin-registry-2.0.8.jar urls[5] = file:/c:/soft/javalib/maven2/local-repository/org/codehaus/plexus/plexus-interactivity-jline/1.0-alpha-5/plexus-interactivity-jline-1.0-alpha-5.jar urls[6] = file:/c:/soft/javalib/maven2/local-repository/jline/jline/0.9.1/jline-0.9.1.jar urls[7] = file:/c:/soft/javalib/maven2/local-repository/org/apache/maven/maven-archiver/2.2/maven-archiver-2.2.jar urls[8] = file:/c:/soft/javalib/maven2/local-repository/org/codehaus/plexus/plexus-resources/1.0-alpha-4/plexus-resources-1.0-alpha-4.jar urls[9] = file:/c:/soft/javalib/maven2/local-repository/biz/aQute/bndlib/0.0.145/bndlib-0.0.145.jar urls[10] = file:/c:/soft/javalib/maven2/local-repository/org/apache/maven/shared/maven-osgi/0.2.0/maven-osgi-0.2.0.jar urls[11] = file:/c:/soft/javalib/maven2/local-repository/org/eclipse/core/resources/3.3.0-v20070604/resources-3.3.0-v20070604.jar

Realm ID: plexus.core
loader constraints violated when linking org/codehaus/plexus/util/xml/XMLWriter class


The side effect of this exception is once the error happens all others projects importing in the same time fail.

Do you have an idea on how to avoid this exception ?

Thanks
Yann.


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