[ https://jira.jboss.org/jira/browse/JBPM-1448?page=com.atlassian.jira.plug... ] Marco Strauch commented on JBPM-1448: ------------------------------------- Hello, I know this issue is closed but I have still a problem with this class loader handling. It is only a comment on this and mybe you can handle it in next JBPM versions. First I use JBPM version 3.2.6 SP1. In my process definition I use bsh scripts. So when I leave a node using an action handler like below ( public class LeaveNodeHandler implements ActionHandle { public void execute(....) { .... rexecutionContext.leaveNode(); ..... } } ) and the executed transition enters another node in which I execute a BSH Script then the initialization of bsh.Interpreter will fail with this exception: org.jbpm.JbpmException: couldn't get value for file 'classes/java/lang/bsh.class' at org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:196) at org.jbpm.instantiation.ProcessClassLoader.findClass(ProcessClassLoader.java:116) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at bsh.classpath.ClassManagerImpl.plainClassForName(Unknown Source) at bsh.classpath.ClassManagerImpl.classForName(Unknown Source) at bsh.NameSpace.classForName(Unknown Source) at bsh.NameSpace.getImportedClassImpl(Unknown Source) at bsh.NameSpace.getClassImpl(Unknown Source) at bsh.NameSpace.getClass(Unknown Source) at bsh.Name.consumeNextObjectField(Unknown Source) at bsh.Name.toObject(Unknown Source) at bsh.Name.toObject(Unknown Source) at bsh.NameSpace.get(Unknown Source) at bsh.Interpreter.get(Unknown Source) at bsh.Interpreter.getu(Unknown Source) at bsh.Interpreter.<init>(Unknown Source) at bsh.Interpreter.<init>(Unknown Source) at bsh.Interpreter.<init>(Unknown Source) .... Caused by: java.lang.NullPointerException at org.jbpm.file.def.FileDefinition.getBytesFromDb(FileDefinition.java:213) at org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:193) ... 236 more This happens because the bsh package is not known in process class loader. So now I have to implement my own process class loader to prevent this. Kind regards, Marco -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira