1 /* 2 * Copyright (c) 2013, 2015, 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 8000968 27 * @key regression 28 * @summary NPG: UseCompressedClassPointers asserts with ObjectAlignmentInBytes=32 29 * @library /testlibrary 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 */ 33 34 import jdk.test.lib.*; 35 36 public class CompressedKlassPointerAndOops { 37 38 public static void main(String[] args) throws Exception { 39 40 if (!Platform.is64bit()) { 41 // Can't test this on 32 bit, just pass 42 System.out.println("Skipping test on 32bit"); 43 return; 44 } 45 46 runWithAlignment(16); 47 runWithAlignment(32); 48 runWithAlignment(64); 49 runWithAlignment(128); 50 } 51 52 private static void runWithAlignment(int alignment) throws Exception { 53 ProcessBuilder pb; 54 OutputAnalyzer output; 55 56 pb = ProcessTools.createJavaProcessBuilder( 57 "-XX:+UseCompressedClassPointers", 58 "-XX:+UseCompressedOops", 59 "-XX:ObjectAlignmentInBytes=" + alignment, 60 "-version"); 61 62 output = new OutputAnalyzer(pb.start()); 63 output.shouldHaveExitValue(0); 64 } 65 }