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/*

 * @test

 * @key stress

 *

 * @summary converted from VM Testbase nsk/monitoring/stress/thread/strace006.

 * VM Testbase keywords: [stress, monitoring, nonconcurrent, jdk_desktop]

 * VM Testbase readme:

 * DESCRIPTION

 *     The test checks that ThreadInfo.getStackTrace() returns correct results for

 *     a thread in "running" state.

 *     Main thread starts a number of auxiliary threads. This number is specified

 *     in "-threadCount" option. Auxiliary threads begin a recursion until they

 *     reach specified depth ("-depth" option). Each thread may use pure java

 *     and/or native methods based on "-invocationType" option. Then the threads

 *     wait until they get a notification from main thread. So, those auxiliary

 *     threads are definitly in "running" state when main thread performs their

 *     checks.

 *     Main thread makes a snapshot of stack trace for all threads and checks it:

 *         1. If a thread is alive, ThreadMonitor.getThreadInfo(long, -1) must

 *            return not null ThreadInfo.

 *         2. The length of a trace must not be greater than (depth + 3). Number

 *            of recursionJava() or recursionNative() methods must not be greater

 *            than depth, also one Object.wait() or Thread.yield() method, one

 *            run(), and one waitForSign().

 *         3. The latest method of the stack trace must be RunningThread.run().

 *         4. getClassName() and getMethodName() methods must return expected

 *            values for each element of the stack trace.

 *     If one of that testcases fail, the test also fails.

 *     After all threads are checked, main thread notifies them to complete their

 *     job. Then the test repeats the procedure with starting threads and

 *     performing checks ITERATIONS times.

 *     This particular test performs access to the MBeans' methods through custom

 *     MBeanServer and uses native methods in auxiliary threads.

 * COMMENTS

 *

 * @library /vmTestbase

 *          /test/lib

 * @run driver jdk.test.lib.FileInstaller . .

 * @run main/othervm/native

 *      nsk.monitoring.stress.thread.strace001

 *      -testMode=server

 *      -MBeanServer=custom

 *      -invocationType=native

 *      -threadCount=50

 *      -depth=200

 */