Hi, WSConsume uses com.sun.tools.ws.wscompile.WsimportTool, internally so you can find the answer by analyzing this Sun WSDL compiler. I took a short look into it and the difference is that WsimportTool during the compiling phase generates both *.java and *class files. At the end of compilation phase if -keep option is set, the generated *.java files will be removed. (-keep option is automatically set by WSConsume tool if you'll specify sourcedestdir attribute in your ant task). Thus if you will specify sourcedestdir, the generated *.java files will not be deleted after the compilation phase. To answer your question: sourcedestdir points to the directory, where WsimportTool will generated *.java files, while destdir points to directory where these *.java files will be compiled to *.class files. RIchard View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4083840#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...