Name: ipR10196 Date: 03/04/2004


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Test : nsk/sajdi/ThreadReference/frames/frames002
VM : ClientVM, ServerVM
Mode : all
Platform : generic
OS : generic
JDK : 1.5.0-beta2-b40 and earlier
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With legacy JDI connectors this test passes.

With SA-JDI connectors ThreadReference.frames() invoked for
threads running in a loop (THREAD_STATUS_RUNNING) either
throws RuntimeException:

    thread #0
      thread name: threadRunning
      isSuspended: true
java.lang.RuntimeException: Couldn't deduce type of CodeBlob @0xf8892448 for PC=0xf8892480
        at sun.jvm.hotspot.code.CodeCache.findBlobUnsafe(CodeCache.java:94)
        at sun.jvm.hotspot.code.CodeCache.findBlob(CodeCache.java:60)
        at sun.jvm.hotspot.runtime.Frame.isGlueFrame(Frame.java:137)
        at sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:190)
        at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:102)
        at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:129)
        at sun.jvm.hotspot.jdi.ThreadReferenceImpl.privateFrames(ThreadReferenceImpl.java:188)
        at sun.jvm.hotspot.jdi.ThreadReferenceImpl.frames(ThreadReferenceImpl.java:157)
        at nsk.sajdi.ThreadReference.frames.frames002.checkThread(frames002.java:222)
        at nsk.sajdi.ThreadReference.frames.frames002.runIt(frames002.java:182)
        at nsk.sajdi.ThreadReference.frames.frames002.run(frames002.java:26)
        at nsk.sajdi.ThreadReference.frames.frames002.main(frames002.java:21)
# ERROR: ThreadReference.frames() throws unexpected exception:
# ERROR: thread nom: 0
# ERROR: thread name: threadRunning
# ERROR: exception: java.lang.RuntimeException:
                          Couldn't deduce type of CodeBlob @0xf8892448 for PC=0xf8892480

or returns no stack frames:

    thread #0
      thread name: threadRunning
      isSuspended: true
      frames count: 0
# ERROR: ThreadReference.frames() returned too few frames for running threads:
# ERROR: thread nom: 0
# ERROR: thread name: threadRunning
# ERROR: frames count: 0
# ERROR: expected: 2
# ERROR: ThreadReference.frames() returned not all expected frames:
# ERROR: thread nom: 0
# ERROR: thread name: threadRunning
# ERROR: frames count: 0
# ERROR: found frames: 0
# ERROR: expected: 2

or returns wrong number of stack frames:

    thread #0
      thread name: threadRunning
      isSuspended: true
Correcting for invalid interpreter frame
      frames count: 1
# ERROR: ThreadReference.frames() returned too few frames for running threads:
# ERROR: thread nom: 0
# ERROR: thread name: threadRunning
# ERROR: frames count: 1
# ERROR: expected: 2
        frame #0
          method: run
          signature: ()V
          ... found expected frame #0
# ERROR: ThreadReference.frames() returned not all expected frames:
# ERROR: thread nom: 0
# ERROR: thread name: threadRunning
# ERROR: frames count: 1
# ERROR: found frames: 1
# ERROR: expected: 2

Particular error depends of which VM (client or server) and
which mode (-Xint, -Xmixed, -Xcomp) are used.

For threads is other states frames() successfully returns list
of stack frames, though on Solaris/sparc for thread in state
THREAD_STATUS_WAITING invocation of frames() prints warning message:

    thread #2
      thread name: threadWaiting
      isSuspended: true
WARNING: IsavedSP was null for frame sp: 0xf8681450, younger_sp: 0xf86813d0, fp: 0xf86814d0, pc: 0xf880bacc
      frames count: 5
        frame #0
          method: wait
          signature: (J)V
        frame #1
          method: wait
          signature: (J)V
        frame #2
          method: wait
          signature: ()V
        frame #3
          method: run2
          signature: (CLjava/lang/String;)V
          ... found expected frame #1
        frame #4
          method: run
          signature: ()V
          ... found expected frame #0

Steps to reproduce:
  cd /net/jano.sfbay/export/disk20/GammaBase/Bugs/<this bug number>
  sh build.sh $JAVA_HOME
  sh run.sh [-pid | -core | -socket] [-g] [-v] $JAVA_HOME [JAVA_OPTS]
where:
    -pid - run test with SA-JDI pid attaching connector (default)
    -core - run test with SA-JDI core attaching connector
    -socket - run test with JDI socket attaching connector
    -g - run test with java_g binaries
    -v - run test in verbose mode

This test will appear in the next r27 testbase release.
Running on Linux this test may fail due to known bug:
4996081 SA-JDI: SAPIDAttachingConnector.attach() throws IOEception on RH AS2.1

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Name: ipR10196 Date: 03/05/2004


ThreadReference.farmeCount() similarly throws RuntimeException for
running threads, prints warning message for waiting thread, or
just returns wrong number of stack frames.
Here is example of throwing RuntimeException:

    thread #0
      thread name: threadRunning
      isSuspended: true
    java.lang.RuntimeException: Couldn't deduce type of CodeBlob @0xf8892288 for PC=0xf88922c0
        at sun.jvm.hotspot.code.CodeCache.findBlobUnsafe(CodeCache.java:94)
        at sun.jvm.hotspot.code.CodeCache.findBlob(CodeCache.java:60)
        at sun.jvm.hotspot.runtime.Frame.isGlueFrame(Frame.java:137)
        at sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:190)
        at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:102)
        at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:129)
        at sun.jvm.hotspot.jdi.ThreadReferenceImpl.privateFrames(ThreadReferenceImpl.java:188)
        at sun.jvm.hotspot.jdi.ThreadReferenceImpl.frameCount(ThreadReferenceImpl.java:152)
        at nsk.sajdi.ThreadReference.frames_ii.frames_ii002.checkThread(frames_ii002.java:201)
        at nsk.sajdi.ThreadReference.frames_ii.frames_ii002.runIt(frames_ii002.java:147)
        at nsk.sajdi.ThreadReference.frames_ii.frames_ii002.run(frames_ii002.java:26)
        at nsk.sajdi.ThreadReference.frames_ii.frames_ii002.main(frames_ii002.java:21)
    # ERROR: ThreadReference.frameCount() throws unexpected exception:
    # ERROR: thread nom: 0
    # ERROR: thread name: threadRunning
    # ERROR: exception: java.lang.RuntimeException:
                              Couldn't deduce type of CodeBlob @0xf8892288 for PC=0xf88922c0

This affects the following SA-JDI tests:

  nsk/sajdi/ThreadReference/frames/frames002
  nsk/sajdi/ThreadReference/frames_ii/frames_ii002


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Name: ipR10196 Date: 03/09/2004


This affects also the following SA-JDI test:

  nsk/sajdi/ThreadReference/frame/frame002


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