Name: elR10090 Date: 07/23/2001


The Hotspot VM (build 1.4.0-beta_refresh-b72) fails the following test
from testbase_nsk:

    nsk/jvmdi/GetThreadStatus/thrstat002

the JVMDI function GetThreadStatus returns JVMDI_THREAD_STATUS_UNKNOWN
instead of the expected JVMDI_THREAD_STATUS_RUNNING when a java thread
is suspended by the JVMDI function SuspendThread.

The test exercises the JVMDI function GetThreadStatus as follows.
A Java program launches the thread "thr1", which passes in succession
the following states:

    JVMDI_THREAD_STATUS_MONITOR,
    JVMDI_THREAD_STATUS_RUNNING, and
    JVMDI_THREAD_STATUS_WAIT.

At each state, to examine a status of the thr1, the Java program
performs a call to the native method checkStatus(int, int, boolean)
which, in turn, invokes the JVMDI function GetThreadStatus and
inspects if a returned value is correct.

At each state, the call is performed two times, before and after
suspending the "thr1" with the method thr1.suspend() that allows
to check up on changing the status with both the JVMDI method
SuspendThread(jthread thread) and java.lang.Thread.suspend().

To reproduce the bug run in GammaBase/Bugs/<this bug number> directory:

    sh doit.sh <JAVA_HOME>

Running the test outputs:

java version "1.4.0-beta_refresh"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta_refresh-b72)
Java HotSpot(TM) Client VM (build 1.4.0-beta_refresh-b72, interpreted mode)
# Waiting time = 2 mins
Wrong thread thr1 (0x9cc4c) status after SuspendThread:
    expected: JVMDI_THREAD_STATUS_RUNNING
    got: JVMDI_THREAD_STATUS_UNKNOWN
Exit Code: 97

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