test/hotspot/jtreg/vmTestbase/nsk/jdb/kill/kill001/kill001.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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 * questions.
 */


/*
 * @test
 *
 * @summary converted from VM Testbase nsk/jdb/kill/kill001.
 * VM Testbase keywords: [jpda, jdb]
 * VM Testbase readme:
 * DECSRIPTION
 * A positive test case for the 'kill <thread id> <expr>' command.
 * The debuggee program (kill001a.java) creates a number of additional
 * threads with name like "MyThread-<number>" and starts them. The jdb
 * suspends debuggee at moment when additional threads try to obtain
 * lock on synchronized object (previously locked in main thread)
 * and then tries to kill them. If these threads are killed then
 * a value of the special "notKilled" variable should not be modified.
 * Value of "notKilled" variable is checked by "eval <expr>" command.
 * The test passes if the value is equal to 0 and fails otherwise..
 * COMMENTS
 *  Modified due to fix of the test bug:
 *  4940902 TEST_BUG: race in nsk/jdb/kill/kill001
 *  Modified due to fix of the bug:
 *  5024081 TEST_BUG: nsk/jdb/kill/kill001 is slow
 *
 * @library /vmTestbase
 *          /test/lib
 * @run driver jdk.test.lib.FileInstaller . .
 * @build nsk.jdb.kill.kill001.kill001
 *        nsk.jdb.kill.kill001.kill001a
 * @run main/othervm PropertyResolvingWrapper nsk.jdb.kill.kill001.kill001
 *      -arch=${os.family}-${os.simpleArch}
 *      -waittime=5
 *      -debugee.vmkind=java
 *      -transport.address=dynamic
 *      -jdb=${test.jdk}/bin/jdb
 *      -java.options="${test.vm.opts} ${test.java.opts}"
 *      -workdir=.
 *      -debugee.vmkeys="${test.vm.opts} ${test.java.opts}"
 */

package nsk.jdb.kill.kill001;

import nsk.share.*;
import nsk.share.jdb.*;

import java.io.*;
import java.util.*;

public class kill001 extends JdbTest {

    public static void main (String argv[]) {
        System.exit(run(argv, System.out) + JCK_STATUS_BASE);
    }

    public static int run(String argv[], PrintStream out) {
        debuggeeClass =  DEBUGGEE_CLASS;
        firstBreak = FIRST_BREAK;
        return new kill001().runTest(argv, out);
    }

    static final String PACKAGE_NAME    = "nsk.jdb.kill.kill001";
    static final String TEST_CLASS      = PACKAGE_NAME + ".kill001";
    static final String DEBUGGEE_CLASS  = TEST_CLASS + "a";
    static final String FIRST_BREAK     = DEBUGGEE_CLASS + ".main";
    static final String LAST_BREAK      = DEBUGGEE_CLASS + ".breakHere";
    static final String MYTHREAD        = "MyThread";
    static final String DEBUGGEE_THREAD = PACKAGE_NAME + "." + MYTHREAD;
    static final String DEBUGGEE_RESULT = DEBUGGEE_CLASS + ".notKilled";
    static final String DEBUGGEE_EXCEPTIONS = DEBUGGEE_CLASS + ".exceptions";

    static int numThreads = nsk.jdb.kill.kill001.kill001a.numThreads;

    protected void runCases() {
        String[] reply;
        Paragrep grep;
        int count;
        Vector v;
        String found;
        String[] threads;

        jdb.setBreakpointInMethod(LAST_BREAK);
        reply = jdb.receiveReplyFor(JdbCommand.cont);

        threads = jdb.getThreadIds(DEBUGGEE_THREAD);

        if (threads.length != numThreads) {
            log.complain("jdb should report " + numThreads + " instance of " + DEBUGGEE_THREAD);
            log.complain("Found: " + threads.length);
            success = false;
        }

        for (int i = 0; i < threads.length; i++) {
            reply = jdb.receiveReplyForWithMessageWait(JdbCommand.kill + threads[i] + " " +
                                                       DEBUGGEE_EXCEPTIONS + "[" + i + "]",
                                                       "killed");
        }

        for (int i = 0; i <= numThreads; i++) {
            reply = jdb.receiveReplyFor(JdbCommand.cont);
        }

        // make sure the debugger is at a breakpoint
        if (!jdb.isAtBreakpoint(reply, LAST_BREAK)) {
            log.display("Expected breakpoint has not been hit yet");
            jdb.waitForMessage(0, LAST_BREAK);
        }
        log.display("Breakpoint has been hit");

        reply = jdb.receiveReplyForWithMessageWait(JdbCommand.eval + DEBUGGEE_RESULT,
                                                   DEBUGGEE_RESULT + " =");
        grep = new Paragrep(reply);
        found = grep.findFirst(DEBUGGEE_RESULT + " =" );
        if (found.length() > 0) {
            if (found.indexOf(DEBUGGEE_RESULT + " = 0") < 0) {
               log.complain("Not all " + MYTHREAD + "s were killed. " + found + " remaining");
               success = false;
            }
        } else {
            log.complain("Value for " + DEBUGGEE_RESULT + " is not found.");
            success = false;
        }

        reply = jdb.receiveReplyFor(JdbCommand.threads);
        jdb.contToExit(1);
    }
}