We are defining a couple of schema files that both contains element (digital signature) that refers to the w3c digital signature schema. The two schema files have different target namespace, and we'd like to put them in separate java packages too. When using default binding rules, duplicate class files appear in both packages. If I want the digital signature files in its own package, and let element in the two schema files refer to this package, how can I use custom bindings to achieve this? Thanks.