The problem: JAX-WS 2.1 API in Maven Central repository and Java.net Maven repository are not in sync. Based on the repository you configured in your project, you may get different flavors of the API. This often results in to compilation errors using JAX-WS Maven plugin. for example, you may get "Caused by: java.lang.NoClassDefFoundError: javax/jws/WebService ..."
Some background:
Java.net...
