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    Look if your classpath is correct, and check if the versions of your libraries match the version you described in your pom.xml

Solutions on the web

via apache.org by Unknown author, 2 years ago
Internal error in the plugin manager executing goal 'org.codehaus.mojo:jaxws-maven-plugin:1.10:wsgen': Mojo execution failed.
via Apache's JIRA Issue Tracker by Henri Gomez, 1 year ago
Internal error in the plugin manager executing goal 'org.codehaus.mojo:jaxws-maven-plugin:1.10:wsgen': Mojo execution failed.
via Google Groups by jieryn, 1 year ago
Internal error in the plugin manager executing goal 'org.apache.maven.plugins:maven- archetype-plugin:1.0-alpha-7:create': Mojo execution failed.
via GitHub by shisamud
, 2 years ago
Internal error in the plugin manager executing goal 'cuke4duke:cuke4duke-maven-plugin:0.4.3:cucumber': Mojo execution failed.
via smartclient.com by Unknown author, 2 years ago
Internal error in the plugin manager executing goal 'com.totsp.gwt:maven-googlewebtoolkit2-plugin:2.0-beta26:mergewebxml': Mojo execution failed.
via Sonatype JIRA by Olivier Lamy, 2 years ago
Invalid or missing parameters: [Mojo parameter [name: 'rules'; alias: 'null']] for mojo: org.apache.maven.plugins:maven-enforcer-plugin:1.0-alpha-4:enforce
java.lang.NoClassDefFoundError: com/sun/mirror/apt/AnnotationProcessorFactory	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)	at java.net.URLClassLoader.access$100(URLClassLoader.java:56)	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadRealmClass(ClassRealm.java:174)	at org.codehaus.plexus.classworlds.strategy.DefaultStrategy.loadClass(DefaultStrategy.java:67)	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:201)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)	at com.sun.tools.ws.WsGen.doMain(WsGen.java:69)	at org.codehaus.mojo.jaxws.AbstractWsGenMojo.execute(AbstractWsGenMojo.java:97)	at org.codehaus.mojo.jaxws.MainWsGenMojo.execute(MainWsGenMojo.java:14)	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:579)	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:498)	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmentForProject(DefaultLifecycleExecutor.java:265)	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:191)	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:149)	at org.apache.maven.DefaultMaven.execute_aroundBody0(DefaultMaven.java:223)	at org.apache.maven.DefaultMaven.execute_aroundBody1$advice(DefaultMaven.java:304)	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:1)	at org.apache.maven.embedder.MavenEmbedder.execute_aroundBody2(MavenEmbedder.java:904)	at org.apache.maven.embedder.MavenEmbedder.execute_aroundBody3$advice(MavenEmbedder.java:304)	at org.apache.maven.embedder.MavenEmbedder.execute(MavenEmbedder.java:1)	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:176)	at org.apache.maven.cli.MavenCli.main(MavenCli.java:63)	at org.apache.maven.cli.MavenCli.main(MavenCli.java:52)