/* * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. * 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* @test * @bug 8193234 8258077 * @summary Check ReleasePrimitiveArrayCritical doesn't leak memory with * Xcheck:jni and JNI_COMMIT mode * @comment This is a manual test as you need to verify memory usage externally. * @library /test/lib * @run main/othervm/native/manual -Xms4m -Xmx4m -Xcheck:jni TestCheckedReleaseCriticalArray */ import jdk.test.lib.process.ProcessTools; import jdk.test.lib.process.OutputAnalyzer; import jtreg.SkippedException; public class TestCheckedReleaseCriticalArray { static { System.loadLibrary("TestCheckedReleaseCriticalArray"); } /* * We repeatedly modify an array via the JNI critical functions, using * JNI_COMMIT mode. No memory leak should be observed on a VM that * provides direct array access. */ public static void main(String[] args) { int[] array = new int[] { 1, 2, 3 }; if (!modifyArray(array)) { // If the VM makes copies then we will leak them if we only ever use // JNI_COMMIT mode. throw new SkippedException("Test skipped as GetPrimitiveArrayCritical made a copy"); } while (true) { modifyArray(array); } } private static native boolean modifyArray(int[] array); }