Hi all , I am using jBoss2.1 , jdk1.3 and Tomcat3.2.1. When i tried to remove entity , i have the error below : java.lang.Illegal.Argument Exception : object is not instance of the class... And the code is : Remote r = home.findByPrimaryKey(new HomePK(3)); r.remove() --> error here. Anybody have any idea why like that ?? Is this a bug in jboss ?? Thanks _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user