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我的應用程序卡住了，然後我想檢查線程狀態。但我不能把通過jstack -l 33822線程轉儲從我的應用程序..無法運行jstack -l對我的java應用程序
Unable to open socket file: target process not responding or HotSpot VM not loaded
The -F option can be used when the target process is not responding
然後我用-F嘗試採取線程轉儲。我得到一個錯誤，如下所示：
Attaching to process ID 33822, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 23.21-b01
Deadlock Detection:
sun.jvm.hotspot.debugger.UnmappedAddressException: 3780320
at sun.jvm.hotspot.debugger.PageCache.checkPage(PageCache.java:208)
at sun.jvm.hotspot.debugger.PageCache.getData(PageCache.java:63)
at sun.jvm.hotspot.debugger.DebuggerBase.readBytes(DebuggerBase.java:217)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.readCInteger(LinuxDebuggerLocal.java:482)
at sun.jvm.hotspot.debugger.DebuggerBase.readCompOopAddressValue(DebuggerBase.java:459)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.readCompOopHandle(LinuxDebuggerLocal.java:442)
at sun.jvm.hotspot.debugger.linux.LinuxAddress.getCompOopHandleAt(LinuxAddress.java:125)
at sun.jvm.hotspot.oops.Oop.getKlassForOopHandle(Oop.java:231)
at sun.jvm.hotspot.oops.ObjectHeap.newOop(ObjectHeap.java:380)
at sun.jvm.hotspot.runtime.JavaThread.getThreadObj(JavaThread.java:331)
at sun.jvm.hotspot.runtime.JavaThread.getCurrentParkBlocker(JavaThread.java:383)
at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:82)
at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:39)
at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:52)
at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
at sun.jvm.hotspot.tools.JStack.run(JStack.java:60)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:221)
at sun.jvm.hotspot.tools.JStack.main(JStack.java:86)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at sun.tools.jstack.JStack.runJStackTool(JStack.java:136)
at sun.tools.jstack.JStack.main(JStack.java:102)
sun.jvm.hotspot.debugger.UnmappedAddressException: 10
at sun.jvm.hotspot.debugger.PageCache.checkPage(PageCache.java:208)
at sun.jvm.hotspot.debugger.PageCache.getData(PageCache.java:63)
at sun.jvm.hotspot.debugger.DebuggerBase.readBytes(DebuggerBase.java:217)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.readCInteger(LinuxDebuggerLocal.java:482)
at sun.jvm.hotspot.debugger.DebuggerBase.readCompOopAddressValue(DebuggerBase.java:459)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.readCompOopHandle(LinuxDebuggerLocal.java:442)
at sun.jvm.hotspot.debugger.linux.LinuxAddress.getCompOopHandleAt(LinuxAddress.java:125)
at sun.jvm.hotspot.oops.Oop.getKlassForOopHandle(Oop.java:231)
at sun.jvm.hotspot.oops.ObjectHeap.newOop(ObjectHeap.java:356)
at sun.jvm.hotspot.oops.NarrowOopField.getValue(NarrowOopField.java:44)
at sun.jvm.hotspot.oops.OopUtilities.threadOopGetParkBlocker(OopUtilities.java:294)
at sun.jvm.hotspot.runtime.JavaThread.getCurrentParkBlocker(JavaThread.java:385)
at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:82)
at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:39)
at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:52)
at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
at sun.jvm.hotspot.tools.JStack.run(JStack.java:60)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:221)
at sun.jvm.hotspot.tools.JStack.main(JStack.java:86)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at sun.tools.jstack.JStack.runJStackTool(JStack.java:136)
at sun.tools.jstack.JStack.main(JStack.java:102)
Can't print deadlocks:10
是不是JVM的defect？