vmware vijava客戶端調用異常

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在使用vmware虛擬化平臺時,經過VIJAVA獲取VCenter中的Task信息， 若是調用超過30次，會拋出「java.rmi.RemoteException: VI SDK invoke exception:com.vmware.vim25.InvalidState「異常。

調用代碼：

ServiceInstance si = new ServiceInstance(new URL("https://192.168.0.100/sdk"), "administrator", "123456", true);
int i=1;
		  	while(true)
		  	{
				TaskManager taskMgr = si.getTaskManager();
	
			    TaskFilterSpec tfs = new TaskFilterSpec();
			    tfs.setEventChainId(new int[]{2951});
			    
			    try{
				    TaskHistoryCollector thc = taskMgr.createCollectorForTasks(tfs);
					
				    TaskInfo[] tasks = null; 
				    while(true)
				    {
				    	tasks = thc.readNextTasks(50);
				        if(tasks==null)
				        {
				          break;
				        }
				    
				        for(TaskInfo t : tasks)
				        {
				        	System.out.println(t.key + " " + t.changeTag + " " + t.eventChainId + " " + t.getProgress() );
				        	
				        }
				    }
				    
			    }catch(Exception e)
			    {
			    	e.printStackTrace();
			    }
			    System.out.println("--------------------------------------------------"+i);
			    Thread.sleep(100);
			    i++;
			    
		  	}

運行30次之後拋出異常：

WARN : java.rmi.RemoteException: VI SDK invoke exception:com.vmware.vim25.InvalidState
	at com.vmware.vim25.ws.WSClient.invoke(WSClient.java:122)
	at com.vmware.vim25.ws.VimStub.createCollectorForTasks(VimStub.java:1666)
	at com.vmware.vim25.mo.TaskManager.createCollectorForTasks(TaskManager.java:75)
	at com.lenovo.itcloud.vm.vmware.VmTaskManager.getTaskInfo(VmTaskManager.java:155)
	at com.lenovo.itcloud.vm.vmware.VmTaskManager.run(VmTaskManager.java:100)
	at java.util.TimerThread.mainLoop(Timer.java:555)
	at java.util.TimerThread.run(Timer.java:505)

解決辦法：

每次使用完畢TaskHistoryCollector 後， 須要調用destoryCollector()方法將其銷燬：

thc.destroyCollector();