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/*
 * @test
 * @key stress
 *
 * @summary converted from VM Testbase nsk/monitoring/stress/thread/strace004.
 * VM Testbase keywords: [stress, monitoring, nonconcurrent]
 * 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. Number of recursionJava() or recursionNative() methods must not be
 *            greater than depth + X, where X is implementation dependent.
 *            See strace001.java for more info.
 *         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 directly access to the MBeans' methods and
 *     uses native methods in auxiliary threads.
 * COMMENTS
 *
 * @library /vmTestbase
 *          /test/lib
 * @run main/othervm/native
 *      nsk.monitoring.stress.thread.strace001
 *      -invocationType=native
 *      -threadCount=50
 *      -depth=200
 */

