Before you start using JAX-WS you need to point Eclipse at a JAX-WS runtime installed on your machine.
The runtime currently supported is Apache Incubator CXF, which also ships as part of IONA Celtix Enterprise.
To choose a runtime:
Select Window
> Preferences from the menu bar.
Select the JAX-WS node.
In the Installed runtimes section of the JAX-WS panel, enter the path to your CXF or Celtix installation in the Apache CXF text box or click Browse to choose a directory path.