a exception for java.lang.NullPointerException in instance.s
this is exception:
22:39:44,093 DEBUG GraphElement : event 'process-start' on 'ProcessDefinition(leave)' for 'Token(/)' instance value: org.jbpm.graph.exe.ProcessInstance@1feca64 Instance is in start state start:start Message variable should not exist yet null instance.getId(): 0 instance.getRootToken(): Token(/) instance.getStart(): Fri Nov 11 22:39:44 CST 2005 22:39:44,109 DEBUG GraphElement : event 'before-signal' on 'StartState(start)' for 'Token(/)' 22:39:44,109 DEBUG GraphElement : event 'node-leave' on 'StartState(start)' for 'Token(/)' 22:39:44,109 DEBUG GraphElement : event 'transition' on 'Transition(manager_aduit_transition)' for 'Token(/)' 22:39:44,109 DEBUG GraphElement : event 'node-enter' on 'TaskNode(manager audit)' for 'Token(/)' 22:39:44,109 DEBUG JbpmConfiguration : jbpm.hibernate.properties=hibernate.properties java.lang.NullPointerException at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:261) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.jbpm.instantiation.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:16) at org.jbpm.taskmgmt.exe.TaskMgmtInstance.getTaskInstanceClass(TaskMgmtInstance.java:41) at org.jbpm.taskmgmt.exe.TaskMgmtInstance.instantiateNewTaskInstance(TaskMgmtInstance.java:174) at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:74) at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:136) at org.jbpm.graph.def.Node.enter(Node.java:284) at org.jbpm.graph.def.Transition.take(Transition.java:92) at org.jbpm.graph.def.Node.leave(Node.java:349) at org.jbpm.graph.node.StartState.leave(StartState.java:73) at org.jbpm.graph.exe.Token.signal(Token.java:127) at org.jbpm.graph.exe.Token.signal(Token.java:92) at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:201) at com.bpm.oa.leave.ManagerAuditTest.testSimpleProcess(ManagerAuditTest.java:89) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at junit.framework.TestSuite.runTest(TestSuite.java:208) at junit.framework.TestSuite.run(TestSuite.java:203) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
the source:
ProcessDefinition processDefinition =
ProcessDefinition.parseXmlResource("leave.par/processdefinition.xml");
assertNotNull("Definition should not be null", processDefinition);
// Create an instance of the process definition.
ProcessInstance instance = new ProcessInstance(processDefinition);
assertEquals(
"Instance is in start state",
instance.getRootToken().getNode().getName(),
"start");
assertNull(
"Message variable should not exist yet",
instance.getContextInstance().getVariable("item"));
System.out.println("instance value: "+instance);
System.out.println(
"Instance is in start state "+
instance.getRootToken().getNode().getName()+
":start");
System.out.println(
"Message variable should not exist yet "+
instance.getContextInstance().getVariable("item"));
// Move the process instance from its start state to the first state.
// The configured action should execute and the appropriate message
// should appear in the message process variable.
System.out.println("instance.getId(): "+instance.getId());
System.out.println("instance.getRootToken(): "+instance.getRootToken());
System.out.println("instance.getStart(): "+instance.getStart());
// instance.signal("manager_aduit_transition");
instance.signal();