Arun Gupta has written up a blog mentioning his use of doc literal services in JWSDP 1.6 as opposed to RPC/ENC, in context of the Fast Infoset project on java.net.

Given that rpc/enc is the source of a lot of the concerns around web services in Java, his example is worth looking at, as many have suggested doc/literal as a way of "fixing" web services.