this token is locked by token[34]
hello,
i'm new in the jbpm world and trying to understand how it works,
while trying to end a taskinstance by using taskinstance.end();
i keep getting the exception "this token is locked by token"
my method
public void completerTask(long id) {
JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();
JbpmContext jbpmontext = jbpmConfiguration.createJbpmContext();
TaskInstance task = jbpmontext.getTaskInstance(id);
task.end();
jbpmontext.close();
}
org.jbpm.JbpmException: this token is locked by token[34] at org.jbpm.graph.exe.Token.signal(Token.java:200) at org.jbpm.graph.exe.Token.signal(Token.java:143) at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:438) at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:364) at jbpm.backend.CreationListeSignataireActionHandler.execute(CreationListeSignataireActionHandler.java:43) at org.jbpm.graph.def.Action.execute(Action.java:137) at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:280) at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:237) at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:207) at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:190) at org.jbpm.graph.def.Node.enter(Node.java:358) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157) at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$2a832044.enter(<generated>) at org.jbpm.graph.def.Transition.take(Transition.java:151) at org.jbpm.graph.def.Node.leave(Node.java:453) at org.jbpm.graph.node.TaskNode.leave(TaskNode.java:228) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157) at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$2a832044.leave(<generated>) at org.jbpm.graph.exe.Token.signal(Token.java:214) at org.jbpm.graph.exe.Token.signal(Token.java:143) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157) at org.jbpm.graph.exe.Token$$EnhancerByCGLIB$$d711c6d8.signal(<generated>) at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:438) at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:364) at service.impl.CreateurProcessusImpl.completerTask(CreateurProcessusImpl.java:114) at test.TestWorkFlow.CompleterActiviteParActeur(TestWorkFlow.java:114) at test.TestWorkFlow.testFlow(TestWorkFlow.java:76) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) 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.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
thank you in advance