1 /* 2 * Copyright (c) 2016, 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 LargeSharedSpace 26 * @bug 8168790 8169870 27 * @summary Test CDS dumping with specific space size. 28 * The space size used in the test might not be suitable on windows. 29 * @requires (os.family != "windows") 30 * @library /test/lib 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * @run main LargeSharedSpace 34 */ 35 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.process.OutputAnalyzer; 38 39 public class LargeSharedSpace { 40 public static void main(String[] args) throws Exception { 41 String sizes[] = {"1066924031", "1600386047"}; 42 String expectedOutputs[] = 43 {/* can dump using the given size */ 44 "Loading classes to share", 45 /* the size is too large, exceeding the limit for compressed klass support */ 46 "larger than compressed klass limit"}; 47 for (int i = 0; i < sizes.length; i++) { 48 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 49 "-XX:SharedMiscCodeSize="+sizes[i], "-XX:+UnlockDiagnosticVMOptions", 50 "-XX:SharedArchiveFile=./LargeSharedSpace.jsa", "-Xshare:dump"); 51 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 52 try { 53 output.shouldContain(expectedOutputs[i]); 54 } catch (RuntimeException e) { 55 /* failed to reserve the memory for the required size, might happen 56 on 32-bit platforms */ 57 output.shouldContain("Unable to allocate memory for shared space"); 58 } 59 } 60 } 61 }