1 /* 2 * Copyright (c) 2013, 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 * @requires vm.cds 27 * @bug 8005933 28 * @summary Test that -Xshare:auto uses CDS when explicitly specified with -server. 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 * @run main XShareAuto 33 */ 34 35 import jdk.test.lib.Platform; 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.process.OutputAnalyzer; 38 39 public class XShareAuto { 40 public static void main(String[] args) throws Exception { 41 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 42 "-server", "-XX:+UnlockDiagnosticVMOptions", 43 "-XX:SharedArchiveFile=./XShareAuto.jsa", "-Xshare:dump"); 44 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 45 output.shouldContain("Loading classes to share"); 46 output.shouldHaveExitValue(0); 47 48 pb = ProcessTools.createJavaProcessBuilder( 49 "-server", "-XX:+UnlockDiagnosticVMOptions", 50 "-XX:SharedArchiveFile=./XShareAuto.jsa", "-version"); 51 output = new OutputAnalyzer(pb.start()); 52 String outputString = output.getOutput(); 53 // We asked for server but it could be aliased to something else 54 if (outputString.contains("Server VM") && !outputString.contains("emulated-client")) { 55 // In server case we don't expect to see sharing flag 56 output.shouldNotContain("sharing"); 57 output.shouldHaveExitValue(0); 58 } 59 else { 60 System.out.println("Skipping test - no Server VM available"); 61 return; 62 } 63 64 pb = ProcessTools.createJavaProcessBuilder( 65 "-server", "-Xshare:auto", "-XX:+UnlockDiagnosticVMOptions", 66 "-XX:SharedArchiveFile=./XShareAuto.jsa", "-Xlog:cds", "-version"); 67 output = new OutputAnalyzer(pb.start()); 68 try { 69 output.shouldContain("sharing"); 70 } catch (RuntimeException e) { 71 // if sharing failed due to ASLR or similar reasons, 72 // check whether sharing was attempted at all (UseSharedSpaces) 73 output.shouldContain("UseSharedSpaces:"); 74 output.shouldNotContain("Unable to map %s"); 75 } 76 output.shouldHaveExitValue(0); 77 } 78 }