Quelle  NonOwnerOps.java   Sprache: 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).
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/**
 * @test
 * @bug 8229212
 * @summary Verify that monitor operations by a non-owner thread throw
 *          IllegalMonitorStateException.
 * @run main NonOwnerOps
 */

public class NonOwnerOps {
    public static void main(String[] args) {
        int error_count = 0;
        Object obj;

        obj = new Object();
        try {
            obj.wait();
            System.err.println("ERROR: wait() by non-owner thread did not " +
                               "throw IllegalMonitorStateException.");
            error_count++;
        } catch (InterruptedException ie) {
            System.err.println("ERROR: wait() by non-owner thread threw " +
                               "InterruptedException which is not expected.");
            error_count++;
        } catch (IllegalMonitorStateException imse) {
            System.out.println("wait() by non-owner thread threw the " +
                               "expected IllegalMonitorStateException:");
            System.out.println(" " + imse);
        }

        obj = new Object();
        try {
            obj.notify();
            System.err.println("ERROR: notify() by non-owner thread did not " +
                               "throw IllegalMonitorStateException.");
            error_count++;
        } catch (IllegalMonitorStateException imse) {
            System.out.println("notify() by non-owner thread threw the " +
                               "expected IllegalMonitorStateException:");
            System.out.println(" " + imse);
        }

        obj = new Object();
        try {
            obj.notifyAll();
            System.err.println("ERROR: notifyAll() by non-owner thread did " +
                               "not throw IllegalMonitorStateException.");
            error_count++;
        } catch (IllegalMonitorStateException imse) {
            System.out.println("notifyAll() by non-owner thread threw the " +
                               "expected IllegalMonitorStateException:");
            System.out.println(" " + imse);
        }

        if (error_count != 0) {
            throw new RuntimeException("Test failed with " + error_count +
                                       " errors.");
        }
        System.out.println("Test PASSED.");
    }
}