Here's a couple ideas. 1) Look at the samples.echo.TestClient code. There are some examples in the code for sending and receiving arrays.
2) If you have the wsdl for the service, run WSDL2Java to generate client side stubs. Even if you don't use the stubs, you can see how the stubs invoke the service. 3) There are more complicated array usages in test.wsdl.marrays. Hope this helps. Rich Scheuerle XML & Web Services Development 512-838-5115 (IBM TL 678-5115)