Java implement a web service client

Exist two common ways to create webservice client in java it's Axis 2 or JAX-WS. What is the best approach? here is performance comparison, it says that JAX-WS is much better (about twice). Below is the comparison table.

Specified VM install not found: type Standard VM, name jre6

Ant saying "Specified VM install not found: type Standard VM, name jre6"! Solution is to delete the "C:\Users\Sergey\juno\.metadata\.plugins\org.eclipse.debug.core\.launches\projectname build.xml.launch file"