RuntimeException: Type "nmethodBucket*", referenced in VMStructs::localHotSpotVMStructs in the remot

問題：使用jmap命令查看某個進程的堆狀況時(jmap -heap 198376)，拋異常以下：

Attaching to process ID 198376, 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.jmap.JMap.runTool(JMap.java:179)
        at sun.tools.jmap.JMap.main(JMap.java:110)
Caused by: java.lang.RuntimeException: Type "nmethodBucket*", referenced in VMStructs::localHotSpotVMStructs in the remote VM, was not present in the remote VMStructs::localHotSpotVMTypes table (should have been caught in the debug build of that VM). Can not continue.
        at sun.jvm.hotspot.HotSpotTypeDataBase.lookupOrFail(HotSpotTypeDataBase.java:362)
        at sun.jvm.hotspot.HotSpotTypeDataBase.readVMStructs(HotSpotTypeDataBase.java:253)
        at sun.jvm.hotspot.HotSpotTypeDataBase.<init>(HotSpotTypeDataBase.java:87)
        at sun.jvm.hotspot.bugspot.BugSpotAgent.setupVM(BugSpotAgent.java:568)
        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.HeapSummary.main(HeapSummary.java:39)
        ... 6 more

 

解決方法：

拋異常緣由是該進程運行所用的java和使用jmap時的java不是同一個版本，使用和所運行程序相同的java版本便可。極可能是由於機器上裝有多個jdk，默認路徑下的jmap和所運行進程使用的不是同一個jdk，因此拋異常了。解決辦法是使用全路徑，如/usr/local/jdk1.7.0_80/bin/jmap -heap 198376

 

http://blog.csdn.net/prstaxy/article/details/51097605