Generér javeklasser fra WSDL med maven

Jeg har forsøgt med følgende:

<build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>jaxws-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>FirstWsdl</id>
                        <goals>
                            <goal>wsimport</goal>
                        </goals>
                        <configuration>
                            <wsdlFiles>
                                <wsdlFile>elog.wsdl</wsdlFile>
                            </wsdlFiles>
                            <packageName>com.xx.xx.xx</packageName>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>


Dette resulterer dog i følgende fejl når jeg kører maven:

[INFO] [clean:clean]
[INFO] [jaxws:wsimport {execution: FirstWsdl}]
[INFO] Processing: C:\projects\product\xxx\src\wsdl\xxx.wsdl
[INFO] jaxws:wsimport args: [-s, C:\projects\xxx\trunk\product\xxx\target\jaxws\wsimport\java, -d, C:\projects\xxx\trunk\product\xxx\classes, -p, com.xx.xx.jaxb, C:\projects\xxx\trunk\product\xxx\src\wsdl\elog.wsdl]
[FATAL ERROR] org.codehaus.mojo.jaxws.MainWsImportMojo#execute() caused a linkage error (java.lang.NoClassDefFoundError) and may be out-of-date. Check the r
alms:
[FATAL ERROR] Plugin realm = app0.child-container[org.codehaus.mojo:jaxws-maven-plugin:1.10]
urls[0] = file:/C:/Documents and Settings/Admin/.m2/repository/org/codehaus/mojo/jaxws-maven-plugin/1.10/jaxws-maven-plugin-1.10.jar
urls[1] = file:/C:/Documents and Settings/Admin/.m2/repository/com/sun/xml/ws/jaxws-tools/2.1.3/jaxws-tools-2.1.3.jar
urls[2] = file:/C:/Documents and Settings/Admin/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
urls[3] = file:/C:/Program Files/Java/jdk1.6.0_13/jre/../lib/tools.jar
[FATAL ERROR] Container realm = plexus.core
urls[0] = file:/C:/tools/apache-maven-2.1.0/bin/../lib/maven-2.1.0-uber.jar
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] com/sun/istack/tools/MaskingClassLoader
com.sun.istack.tools.MaskingClassLoader
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NoClassDefFoundError: com/sun/istack/tools/MaskingClassLoader
        at org.codehaus.mojo.jaxws.WsImportMojo.wsImport(WsImportMojo.java:273)
        at org.codehaus.mojo.jaxws.WsImportMojo.processLocalWsdlFiles(WsImportMojo.java:235)
        at org.codehaus.mojo.jaxws.WsImportMojo.execute(WsImportMojo.java:191)
        at org.codehaus.mojo.jaxws.MainWsImportMojo.execute(MainWsImportMojo.java:15)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:483)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:678)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:540)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:519)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:371)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:332)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:181)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:356)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:137)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:356)
        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:597)
        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)
Caused by: java.lang.ClassNotFoundException: com.sun.istack.tools.MaskingClassLoader
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at org.codehaus.classworlds.RealmClassLoader.loadClassDirect(RealmClassLoader.java:195)
        at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:255)
        at org.codehaus.classworlds.DefaultClassRealm.loadClass(DefaultClassRealm.java:274)
        at org.codehaus.classworlds.RealmClassLoader.loadClass(RealmClassLoader.java:214)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
        ... 22 more



Hvad kan fejlen være??