After digging into the xerces code, both the VALIDATION and DYNAMIC_VALIDATION features need to be false to avoid validation of docs with DOCTYPEs. The UnmarshallerImpl.setValidation(boolean) was therefore updated to: | public void setValidation(boolean validation) throws JBossXBException | { | parser.setFeature(VALIDATION, validation); | parser.setFeature(DYNAMIC_VALIDATION, false); | } | With this change the test passes. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4034823#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...