一個使用了很久的Jmeter腳本，運行時Jmeter的UI界面上點擊綠色按鈕后，完全無反應，只有log報錯，如下：
2017/06/28 14:29:23 ERROR - jmeter.gui.action.ActionRouter: Error processing org.apache.jmeter.gui.action.Start@1b7c473a java.lang.ArrayIndexOutOfBoundsException: 0
at org.apache.jmeter.gui.action.Start.startEngine(Start.java:193)
at org.apache.jmeter.gui.action.Start.startEngine(Start.java:174)
at org.apache.jmeter.gui.action.Start.startEngine(Start.java:164)
at org.apache.jmeter.gui.action.Start.doAction(Start.java:108)
at org.apache.jmeter.gui.action.ActionRouter.performAction(ActionRouter.java:80)
at org.apache.jmeter.gui.action.ActionRouter.access$000(ActionRouter.java:40)
at org.apache.jmeter.gui.action.ActionRouter$1.run(ActionRouter.java:62)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
經過google，bing等多方面查詢無果，看到日志中貌似有什么范圍超限了，以為是Jmeter工具有內存緩存什么的，或者對這個jmeter腳本有緩存記錄。最后只能把腳本部分內容復制並重新創建了一個腳本，運行后發現一切正常。
趕緊翻看原來的腳本，發現了一個特別蛋疼的事情，不知道什么時候手誤，把【測試計划】給注釋了。
去掉注釋狀態后，腳本運行正常。
從網上查找的結果看，還真沒有對 【jmeter.gui.action.Start@1b7c473a java.lang.ArrayIndexOutOfBoundsException: 0】做出解釋的帖子，因此寫下此帖子，
也給可能手誤的朋友們解惑。