I am facing a similiar problem but I can't identify the cause. I am trying to deploy a process definition and the exception is thrown. The prior exception identified is | deploy.seminar: | [jbpm-deploy] java.util.zip.ZipException: error in opening zip file | [jbpm-deploy] at java.util.zip.ZipFile.open(Native Method) | [jbpm-deploy] at java.util.zip.ZipFile.<init>(ZipFile.java:114) | [jbpm-deploy] at java.util.zip.ZipFile.<init>(ZipFile.java:131) | [jbpm-deploy] at org.apache.tools.ant.AntClassLoader.getResourceURL(AntClassLoa | der.java:1028) | [jbpm-deploy] at org.apache.tools.ant.AntClassLoader$ResourceEnumeration.findNe | xtResource(AntClassLoader.java:147) | [jbpm-deploy] at org.apache.tools.ant.AntClassLoader$ResourceEnumeration.<init> | (AntClassLoader.java:109) | [jbpm-deploy] at org.apache.tools.ant.AntClassLoader.findResources(AntClassLoad | er.java:975) | [jbpm-deploy] at java.lang.ClassLoader.getResources(ClassLoader.java:1016) | [jbpm-deploy] at org.apache.commons.logging.LogFactory$4.run(LogFactory.java:13 | 17) | [jbpm-deploy] at java.security.AccessController.doPrivileged(Native Method) | [jbpm-deploy] at org.apache.commons.logging.LogFactory.getResources(LogFactory. | java:1336) | [jbpm-deploy] at org.apache.commons.logging.LogFactory.getConfigurationFile(Log | Factory.java:1398) | | .. much longer | So what's wrong with ant or my *.jar or *.bar file?? I am not understading the problem since the classpath should be fine with the *.jar created correctly. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4263219#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...