Hi All<br><br>I Make a test with Jmeter (<a href="http://jakarta.apache.org/jmeter/">http://jakarta.apache.org/jmeter/</a>) to stress my flow. I Created a Thread Group, to execute 1000 <span class="dct-tt">simultaneous</span><span class="dct-tp"></span> users for start the flow.<br>
 I had  the follow trouble:<br>The First users that try to started the process, received this execption:<br><br>Caused by: java.lang.NullPointerException<br>    at org.drools.task.service.MinaTaskClient.addTask(MinaTaskClient.java:43)<br>
    at org.drools.process.workitem.wsht.WSHumanTaskHandler.executeWorkItem(WSHumanTaskHandler.java:161)<br>    at org.drools.process.instance.impl.DefaultWorkItemManager.internalExecuteWorkItem(DefaultWorkItemManager.java:55)<br>
    at org.drools.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:95)<br>    at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:112)<br>    at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:148)<br>
    at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:135)<br>    at org.drools.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)<br>    at org.drools.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)<br>
    at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:112)<br>    at org.drools.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:16)<br>    at org.drools.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:185)<br>
    at org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:239)<br>    at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1708)<br>    at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:288)<br>
    at br.com.dextra.droolsflow.tasks.TaskServiceBean.startProcessFlow(TaskServiceBean.java:68)<br><br>After some users, the process starts normal. The problem occur only for the first users. I Believe that problem is from MinaTaskServer tha was not started <span class="dct-tt">correctly</span><span class="dct-tp"></span>. (Just start, after some calls).<br>
<br>I used to start MinaTaskServer the follow code (This code is inside a  Jboss - MBean):<br><b><br></b><div style="margin-left: 40px;"><b>TaskService taskService = new TaskService(</b><br><b>                this.entityManageSessionFactory, SystemEventListenerFactory</b><br>
<b>                        .getSystemEventListener());</b><br><br><b>        server = new MinaTaskServer(taskService);</b><br><br><b>        Thread thread = new Thread(server);</b><br><b>        thread.start();</b><br><b>        Thread.sleep(5000);</b><br>
<br><br></div>could anybody  help me?<br><br>Thanks<br><br><br><br><br><br>