[jboss-jira] [JBoss JIRA] Updated: (JBPM-992) ProcessClassLoader : cannot load resource from code deployed inside a process archive

ProcessClassLoader : cannot load resource from code deployed inside a process archive ------------------------------------------------------------------------------------- Key: JBPM-992 URL: http://jira.jboss.com/jira/browse/JBPM-992 Project: JBoss jBPM Issue Type: Bug Components: Core Engine Affects Versions: jBPM jPDL 3.2 Environment: enterprise JBPM : process archive deployed and serialized into database Reporter: Adrian Dimulescu Assigned To: Tom Baeyens Fix For: jBPM jPDL 3.2.2 Attachments: jbpm-patch-classloading-resource.patch A Java class deployed with a process archive may need access to a class path resource deployed in the same process archive. A common example is an ActionHandler implementation that calls a remote EJB and needs a jndi.properties file containin remote appserver location. In order to load that it calls : this.getClass().getClassLoader().getResourceAsStream("jndi.properties") This call generates a java.lang.NullPointerException which I think justifies the classification of this issue as a bug. Looking inside the ProcessClassLoader class, I see that in order to load a class, a "classes/" prefix. Indeed, the "par" format wants that all compiled classes be locates underneath the "classes/" directory. The JBPM_BYTEARRAY.NAME_ field in the database table confirms this : the NAME_ of the jndi.properties resource is : "classes/jndi.properties". Still the ProcessClassLoader.getResourceAsStream method does not use the classes prefix. The fix look thus simple, i.e. adding that prefix. Second problem : if the resource is not found, a delegation should be made to the parent classloader.