title: jax-ws client don't reuse classes
body: <p>I've created webservice client with wsimport tool with authentication. This ws client is working fine but i've monitorized application with visual vm and i've seen that every time that ws is called, number of loaded classes increments. If I call webservice so much, the memory used increased too. I think that classes generated by wsimport are not reusinging.</p>
  
  <p>I'm using:
  -tomcat 7.0.27 
  -jdk_1.6.0_23</p>