An user asked for a schema for the JAX-WS binding customization. So Vivek had put together one and I run it through xnsdoc and published it online.

We'll try to get the schema published at http://java.sun.com/xml/ns/jaxws (which is the actual namespace URI of this schema), but in the mean time, you can get it from here.

Similar reference for JAXB has been available for a while.