如何解决Linux环境下使用jinfo命令和jmap命令时出现的异常

最新推荐文章于 2024-07-11 12:03:06 发布

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最新推荐文章于 2024-07-11 12:03:06 发布

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分类专栏： linux 文章标签： java

本文链接：https://blog.youkuaiyun.com/coding__coder/article/details/107570307

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本文介绍了在Linux环境下，特别是Deepin系统和openjdk-8中使用jinfo和jmap命令时遇到异常的解决方法。异常可能是由于缺少Debug软件环境或版本不对应导致。解决方案包括查看JDK版本，安装对应的debug软件包，并根据需要移除并重新安装以验证问题所在。对于CentOS系统，也可以参照类似步骤解决。

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如何解决Linux环境下使用jinfo命令和jmap命令时出现的异常

异常描述：

最近在Deepin系统、openjdk-8环境下执行 jinfo 18310 和 jmap -heap 25151 查看jvm内部相关信息时出现异常。
异常信息如下：

david@UX501:~$ jinfo 18310
Attaching to process ID 18310, please wait...
Error attaching to process: java.lang.RuntimeException: can't determine target's VM version : field "_reserve_for_allocation_prefetch" not found in type Abstract_VM_Version
sun.jvm.hotspot.debugger.DebuggerException: java.lang.RuntimeException: can't determine target's VM version : field "_reserve_for_allocation_prefetch" not found in type Abstract_VM_Version
	at sun.jvm.hotspot.HotSpotAgent.setupVM(HotSpotAgent.java:435)
	at sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:305)
	at sun.jvm.hotspot.HotSpotAgent.attach(HotSpotAgent.java:140)
	at sun.jvm.hotspot.tools.Tool.start(Tool.java:185)
	at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
	at sun.jvm.hotspot.tools.JInfo.main(JInfo.java:138)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.tools.jinfo.JInfo.runTool(JInfo.java:108)
	at sun.tools.jinfo.JInfo.main(JInfo.java:76)
Caused by: java.lang.RuntimeException: can't determine target's VM version : field "_reserve_for_allocation_prefetch" not found in type Abstract_VM_Version
	at sun.jvm.hotspot.runtime.VM.<init>(VM.java:291)
	at sun.jvm.hotspot.runtime.VM.initialize(VM.java:370)
	at sun.jvm.hotspot.HotSpotAgent.setupVM(HotSpotAgent.java:431)
	... 11 more

david@UX501:~$ jmap -heap 25151
Attaching to process ID 25151, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.212-b01

using thread-local object allocation.
Parallel GC with 8 thread(s)

Heap Configuration:
   MinHeapFreeRatio         = 0
   MaxHeapFreeRatio         = 100
   MaxHeapSize              = 20971520 (20.0MB)
   NewSize                  = 6815744 (6.5MB)
   MaxNewSize               = 6815744 (6.5MB)
   OldSize                  = 14155776 (13.5MB)
   NewRatio                 = 2
   SurvivorRatio            = 8
   MetaspaceSize            = 21807104 (20.796875MB)
   CompressedClassSpaceSize = 1073741824 (1024.0MB)
   MaxMetaspaceSize         = 17592186044415 MB
   G1HeapRegionSize         = 0 (0.0MB)

Heap Usage:
Exception in thread "main" java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0

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