5
昨天，jstack工作正常。 今天，所有出突然它給了我下面的異常，我不知道爲什麼：Jstack給出java.lang.reflect.InvocationTargetException
$ sudo -u tomcat6 jstack -J-d64 -m 26385
Attaching to process ID 26385, please wait...
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.tools.jstack.JStack.runJStackTool(JStack.java:118)
at sun.tools.jstack.JStack.main(JStack.java:84)
Caused by: sun.jvm.hotspot.runtime.VMVersionMismatchException: Supported versions are 20.1-b02. Target VM is 19.0-b09
at sun.jvm.hotspot.runtime.VM.checkVMVersion(VM.java:224)
at sun.jvm.hotspot.runtime.VM.<init>(VM.java:287)
at sun.jvm.hotspot.runtime.VM.initialize(VM.java:357)
at sun.jvm.hotspot.bugspot.BugSpotAgent.setupVM(BugSpotAgent.java:594)
at sun.jvm.hotspot.bugspot.BugSpotAgent.go(BugSpotAgent.java:494)
at sun.jvm.hotspot.bugspot.BugSpotAgent.attach(BugSpotAgent.java:332)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:163)
at sun.jvm.hotspot.tools.JStack.main(JStack.java:86)
... 6 more
有誰知道是什麼引起的？ 我在Ubuntu服務器版上運行Tomcat6。