Hello! I get a very strange error: I have a class which implements java.io.Serializable. This class causes the following exception: java.io.IOException: Field hash null is not available on current classPath for class at.myclasses.myclass This exception is thrown in the readstream method of org.jboss.serial.classmetamodel.StreamingClass. I have no idea what might be the reason that causes this exception to be thrown. Does anyone of you have an idea? Thanks for your answer! E. Hofer View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4141287#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...