jdk-24/test/hotspot/jtreg/serviceability/jvmti/events/ThreadStart/threadstart02/threadstart02.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 */

import java.io.PrintStream;

/*
 * @test
 *
 * @summary converted from VM Testbase nsk/jvmti/ThreadStart/threadstart002.
 * VM Testbase keywords: [quick, jpda, jvmti, onload_only_logic, noras]
 * VM Testbase readme:
 * DESCRIPTION
 *     This is a regression test for the following bug:
 *         4432884 jdbx does not work with jdk 1.3.1 starting with
 *                 rc1 build 19 onwards
 *     The test runs a debugger agent in a separate thread that operates
 *     on behalf of other threads, so when it gets a ThreadStart event,
 *     the debugger agent suspends the new thread and then
 *     calls jni_DeleteGlobalRef with a jnienv * for that new thread.
 *     Then the test resumes the new thread and checks the thread
 *     suspend status.
 * COMMENTS
 *     The test reproduces the bug on Solsparc with JDK 1.3.1-b19
 *     with the following output:
 *     java version "1.3.1-rc1"
 *     Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-rc1-b19)
 *     Java HotSpot(TM) Client VM (build 1.3.1-rc1-b19, interpreted mode)
 *     >>> debug agent created
 *     >>> thread 0: Signal Dispatcher
 *     >>> Signal Dispatcher suspended ...
 *     >>> ... resumed
 *     >>> agent: threadStatus=ffffffff, suspendStatus=1
 *     "Signal Dispatcher" did not resume
 *     FATAL ERROR in native method: could not recover
 *     Exit Code: 1
 *     Fixed according to 4668512 bug,
 *     Ported from JVMDI.
 *     Modified due to fix of the RFE
 *     5001769 TEST_RFE: remove usage of deprecated GetThreadStatus function
 *     Fixed according to 6221885 test bug.
 *
 * @library /test/lib
 * @run main/othervm/native -agentlib:threadstart02 threadstart02 5
 */

public class threadstart02 {

    static {
        try {
            System.loadLibrary("threadstart02");
        } catch (UnsatisfiedLinkError ule) {
            System.err.println("Could not load threadstart02 library");
            System.err.println("java.library.path:"
                    + System.getProperty("java.library.path"));
            throw ule;
        }
    }

    native static int check();

    public static int waitTime = 2;

    public static void main(String args[]) {
        int result = run(args, System.out);
        if (result != 0) {
            throw new RuntimeException("Unexpected status: " + result);
        }
    }

    public static int run(String args[], PrintStream out) {
        if (args.length > 0) {
            try {
                int i  = Integer.parseInt(args[0]);
                waitTime = i;
            } catch (NumberFormatException ex) {
                out.println("# Wrong argument \"" + args[0] + "\", the default value is used");
            }
        }
        out.println("# Waiting time = " + waitTime + " mins");

        TestThread t = new TestThread("TestThread_1");
        t.start();

        try {
            t.join(waitTime * 60000);
        } catch (InterruptedException e) {
            throw new Error("Unexpected: " + e);
        }

        return check();
    }

    static class TestThread extends Thread {

        TestThread(String name) {
            super(name);
        }

        public void run() {
        }
    }
}