1 /* 2 * Copyright (c) 2017, 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 8166188 27 * @summary Test call of native function with JNI weak global ref. 28 * @modules java.base 29 * @run main/othervm/native CallWithJNIWeak 30 */ 31 32 public class CallWithJNIWeak { 33 static { 34 System.loadLibrary("CallWithJNIWeak"); 35 } 36 37 private static native void testJNIFieldAccessors(CallWithJNIWeak o); 38 39 // The field initializations must be kept in sync with the JNI code 40 // which reads verifies the values of these fields. 41 private int i = 1; 42 private long j = 2; 43 private boolean z = true; 44 private char c = 'a'; 45 private short s = 3; 46 private float f = 1.0f; 47 private double d = 2.0; 48 private Object l; 49 50 private CallWithJNIWeak() { 51 this.l = this; 52 } 53 54 private native void weakReceiverTest0(); 55 private void weakReceiverTest() { 56 weakReceiverTest0(); 57 } 58 59 private synchronized void synchonizedWeakReceiverTest() { 60 this.notifyAll(); 61 } 62 63 64 private static native void runTests(CallWithJNIWeak o); 65 66 public static void main(String[] args) { 67 CallWithJNIWeak w = new CallWithJNIWeak(); 68 for (int i = 0; i < 20000; i++) { 69 runTests(w); 70 } 71 } 72 }