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/*
 * @test
 *
 * @summary converted from VM Testbase nsk/jdi/ThreadReference/currentContendedMonitor/currentcm001.
 * VM Testbase keywords: [quick, jpda, jdi]
 * VM Testbase readme:
 * DESCRIPTION:
 *     The test for the implementation of an object of the type
 *     ThreadReference.
 *     The test checks up that a result of the method
 *     com.sun.jdi.ThreadReference.currentContendedMonitor()
 *     complies with its spec:
 *     public ObjectReference currentContendedMonitor()
 *            throws IncompatibleThreadStateException
 *     Returns an ObjectReference for the monitor, if any,
 *     for which this thread is currently waiting.
 *     The thread can be waiting for a monitor through entry into
 *     a synchronized method, the synchronized statement, or Object.wait(long).
 *     The status() method can be used to differentiate between
 *     the first two cases and the third.
 *     Not all target virtual machines support this operation.
 *     Use VirtualMachine.canGetCurrentContendedMonitor() to determine if
 *     the operation is supported.
 *     Returns: the ObjectReference corresponding to the contended monitor, or
 *              null if it is not waiting for a monitor.
 *     Throws: java.lang.UnsupportedOperationException -
 *             if the target virtual machine does not support this operation.
 *             IncompatibleThreadStateException -
 *             if the thread is not suspended in the target VM
 *             ObjectCollectedException -
 *             if this object has been garbage collected.
 *     when a ThreadGroupReference object has not been garbage collected,
 *     hence ObjectCollectedException is not expected to be thrown.
 *     The test works as follows:
 *     The debugger program - nsk.jdi.ThreadReference.currentContendedMonitor.currentcm001;
 *     the debuggee program - nsk.jdi.ThreadReference.currentContendedMonitor.currentcm001a.
 *     Using nsk.jdi.share classes,
 *     the debugger gets the debuggee running on another JavaVM,
 *     creates the object debuggee.VM,
 *     establishes a pipe with the debuggee program, and then
 *     send to the programm commands, to which the debuggee replies
 *     via the pipe. Upon getting reply,
 *     the debugger calls corresponding debuggee.VM methods to get
 *     needed data and compares the data got to the data expected.
 *     In case of error the test produces the return value 97 and
 *     a corresponding error message(s).
 *     Otherwise, the test is passed and produces
 *     the return value 95 and no message.
 * COMMENTS:
 *
 * @library /vmTestbase
 *          /test/lib
 * @run driver jdk.test.lib.FileInstaller . .
 * @build nsk.jdi.ThreadReference.currentContendedMonitor.currentcm001
 *        nsk.jdi.ThreadReference.currentContendedMonitor.currentcm001a
 * @run main/othervm PropertyResolvingWrapper
 *      nsk.jdi.ThreadReference.currentContendedMonitor.currentcm001
 *      -verbose
 *      -arch=${os.family}-${os.simpleArch}
 *      -waittime=5
 *      -debugee.vmkind=java
 *      -transport.address=dynamic
 *      "-debugee.vmkeys=${test.vm.opts} ${test.java.opts}"
 */

