1 /* 2 * Copyright (c) 2013, 2022, 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 package gc.arguments; 25 26 import jdk.test.lib.process.OutputAnalyzer; 27 import jdk.test.lib.Platform; 28 29 /* 30 * @test 31 * @bug 8015107 32 * @summary Tests that VM prints a warning when -XX:CompressedClassSpaceSize 33 * is used together with -XX:-UseCompressedClassPointers 34 * @library /test/lib 35 * @library / 36 * @modules java.base/jdk.internal.misc 37 * java.management 38 * @run driver gc.arguments.TestCompressedClassFlags 39 */ 40 public class TestCompressedClassFlags { 41 public static void main(String[] args) throws Exception { 42 if (Platform.is64bit()) { 43 OutputAnalyzer output = runJava("-XX:CompressedClassSpaceSize=1g", 44 "-XX:-UseCompressedClassPointers", 45 "-version"); 46 output.shouldContain("warning"); 47 output.shouldNotContain("error"); 48 output.shouldHaveExitValue(0); 49 } 50 } 51 52 private static OutputAnalyzer runJava(String ... args) throws Exception { 53 ProcessBuilder pb = GCArguments.createJavaProcessBuilder(args); 54 return new OutputAnalyzer(pb.start()); 55 } 56 }