Jmeter报错之jmeter.gui.action.ActionRouter: Error processing gui.action.Start@1b7c473a java.lang.ArrayIndexOutOfBoundsException

一个使用了很久的Jmeter脚本，运行时Jmeter的UI界面上点击绿色按钮后，完全无反应，只有log报错，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)

经过google，bing等多方面查询无果，看到日志中貌似有什么范围超限了，以为是Jmeter工具有内存缓存什么的，或者对这个jmeter脚本有缓存记录。最后只能把脚本部分内容复制并重新创建了一个脚本，运行后发现一切正常。