JVM 学习问题记录帖

 

  ·  通过jinfo pid 查看eclipse的jvm启动参数报错：

google得知这是由于openjdk内部版本不一致导致的，然后到oracle官方下载新版本jdk重新安装之解决

D:\dev-tools\Java\jdk1.6.0_32\bin>jinfo 6692
Attaching to process ID 6692, 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.jinfo.JInfo.runTool(JInfo.java:79)
        at sun.tools.jinfo.JInfo.main(JInfo.java:53)
Caused by: sun.jvm.hotspot.runtime.VMVersionMismatchException: Supported versions are 20.7-b02. Target VM is 20.12-b01
        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.JInfo.main(JInfo.java:128)
        ... 6 more