1 /* 2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @bug 8229212 27 * @summary Verify that monitor operations by a non-owner thread throw 28 * IllegalMonitorStateException. 29 * @run main NonOwnerOps 30 */ 31 32 public class NonOwnerOps { 33 public static void main(String[] args) { 34 int error_count = 0; 35 Object obj; 36 37 obj = new Object(); 38 try { 39 obj.wait(); 40 System.err.println("ERROR: wait() by non-owner thread did not " + 41 "throw IllegalMonitorStateException."); 42 error_count++; 43 } catch (InterruptedException ie) { 44 System.err.println("ERROR: wait() by non-owner thread threw " + 45 "InterruptedException which is not expected."); 46 error_count++; 47 } catch (IllegalMonitorStateException imse) { 48 System.out.println("wait() by non-owner thread threw the " + 49 "expected IllegalMonitorStateException:"); 50 System.out.println(" " + imse); 51 } 52 53 obj = new Object(); 54 try { 55 obj.notify(); 56 System.err.println("ERROR: notify() by non-owner thread did not " + 57 "throw IllegalMonitorStateException."); 58 error_count++; 59 } catch (IllegalMonitorStateException imse) { 60 System.out.println("notify() by non-owner thread threw the " + 61 "expected IllegalMonitorStateException:"); 62 System.out.println(" " + imse); 63 } 64 65 obj = new Object(); 66 try { 67 obj.notifyAll(); 68 System.err.println("ERROR: notifyAll() by non-owner thread did " + 69 "not throw IllegalMonitorStateException."); 70 error_count++; 71 } catch (IllegalMonitorStateException imse) { 72 System.out.println("notifyAll() by non-owner thread threw the " + 73 "expected IllegalMonitorStateException:"); 74 System.out.println(" " + imse); 75 } 76 77 if (error_count != 0) { 78 throw new RuntimeException("Test failed with " + error_count + 79 " errors."); 80 } 81 System.out.println("Test PASSED."); 82 } 83 }