Eclipse memory analyser - error on trying to acquire heap dump

I am trying to acquire heap dump using the Eclipse Memory Analyzer Tool (MAT). I have Weblogic 10.3 app server running. It's a windows XP OS with 32 bit Java installed. Wh开发者_StackOverflow社区en I try to acquire heap dump using MAT for the process that's running Weblogic, I am getting the following error:

Error creating heap dump. jmap exit code = 1
Exception in thread "main" java.io.IOException: Premature EOF
    at sun.tools.attach.HotSpotVirtualMachine.readInt(HotSpotVirtualMachine.java:226)
    at sun.tools.attach.WindowsVirtualMachine.execute(WindowsVirtualMachine.java:88)
    at sun.tools.attach.HotSpotVirtualMachine.executeCommand(HotSpotVirtualMachine.java:195)
    at sun.tools.attach.HotSpotVirtualMachine.dumpHeap(HotSpotVirtualMachine.java:162)
    at sun.tools.jmap.JMap.dump(JMap.java:224)
    at sun.tools.jmap.JMap.main(JMap.java:122)

Error creating heap dump. jmap exit code = 1
Exception in thread "main" java.io.IOException: Premature EOF
    at sun.tools.attach.HotSpotVirtualMachine.readInt(HotSpotVirtualMachine.java:226)
    at sun.tools.attach.WindowsVirtualMachine.execute(WindowsVirtualMachine.java:88)
    at sun.tools.attach.HotSpotVirtualMachine.executeCommand(HotSpotVirtualMachine.java:195)
    at sun.tools.attach.HotSpotVirtualMachine.dumpHeap(HotSpotVirtualMachine.java:162)
    at sun.tools.jmap.JMap.dump(JMap.java:224)
    at sun.tools.jmap.JMap.main(JMap.java:122)

Any help is appreciated.

Thanks, Sid

---

One thing you could try is using jmap to save the dump and open it in MAT.

Use jps to get the process id (pid).

jmap -dump:live,format=b,file=myfile.hprof <processid-from-above>

---

I met the same problem on Windows, I solved by open cmd.exe as Administrator.