[JBoss jBPM] - Error in executing jbpm code
by AjayKamath7
i am runing below code code for Jbpm
package com.sample.action;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.graph.exe.Token;
import org.jbpm.taskmgmt.def.Task;
import org.jbpm.taskmgmt.exe.TaskInstance;
public class TestWorkflow {
public static void main(String args[])throws Exception {
new TestWorkflow().execute();
}
public void execute() throws Exception {
// Extract process from the processdefinition.xml file.
ProcessDefinition processDefinition =ProcessDefinition.parseXmlResource("NewSample/processdefinition.xml");
ProcessInstance instance =new ProcessInstance(processDefinition);
displayStatus(instance);
instance.signal();
displayStatus(instance);
executeTask(instance);
displayStatus(instance);
executeTask(instance);
displayStatus(instance);
}
private void displayStatus(ProcessInstance instance) {
String nodeName = instance.getRootToken().getNode().getName();
System.out.println("task node executed: "+nodeName);
}
private void executeTask(ProcessInstance instance) {
// Get the Task Instance List
ArrayList taskList = new ArrayList(instance.getTaskMgmtInstance().getTaskInstances());
System.out.println("length" +taskList.size());
Iterator iter = taskList.iterator();
while (iter.hasNext()) {
TaskInstance taskInstance = (TaskInstance)iter.next();
System.out.println("Found Task "+taskInstance.getName());
System.out.println("Found Actor "+taskInstance.getActorId());
taskInstance.end();
System.out.println("Task completed");
}
}
}
i am getting the following error
Exception in thread "main" java.lang.IllegalStateException: task instance '0' is already ended
pls help...
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16 years, 2 months