1 /* 2 * Copyright (c) 2019, 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 java.util.ArrayList; 27 import java.util.Collections; 28 import java.util.List; 29 import jdk.test.lib.Platform; 30 import jdk.test.lib.process.ProcessTools; 31 32 /** 33 * Helper class for adding options to child processes that should be 34 * used by all of the argument tests in this package. The default 35 * options are added at the front, to allow them to be overridden by 36 * explicit options from any particular test. 37 */ 38 39 public final class GCArguments { 40 41 // Avoid excessive execution time. disableZapUnusedHeapArea(List<String> arguments)42 static private void disableZapUnusedHeapArea(List<String> arguments) { 43 // Develop option, only available in debug builds. 44 if (Platform.isDebugBuild()) { 45 arguments.add("-XX:-ZapUnusedHeapArea"); 46 } 47 } 48 49 // Avoid excessive execution time. disableVerifyBeforeExit(List<String> arguments)50 static private void disableVerifyBeforeExit(List<String> arguments) { 51 // Diagnostic option, default enabled in debug builds. 52 if (Platform.isDebugBuild()) { 53 arguments.add("-XX:-VerifyBeforeExit"); 54 } 55 } 56 addDefaults(List<String> arguments)57 static private void addDefaults(List<String> arguments) { 58 disableZapUnusedHeapArea(arguments); 59 disableVerifyBeforeExit(arguments); 60 } 61 withDefaults(String[] arguments)62 static private String[] withDefaults(String[] arguments) { 63 List<String> augmented = new ArrayList<String>(); 64 addDefaults(augmented); 65 Collections.addAll(augmented, arguments); 66 return augmented.toArray(new String[augmented.size()]); 67 } 68 createJavaProcessBuilder(List<String> arguments)69 static public ProcessBuilder createJavaProcessBuilder(List<String> arguments) { 70 return createJavaProcessBuilder(arguments.toArray(String[]::new)); 71 } 72 createJavaProcessBuilder(String... arguments)73 static public ProcessBuilder createJavaProcessBuilder(String... arguments) { 74 return ProcessTools.createJavaProcessBuilder(withDefaults(arguments)); 75 } 76 createTestJvm(List<String> arguments)77 static public ProcessBuilder createTestJvm(List<String> arguments) { 78 return createTestJvm(arguments.toArray(String[]::new)); 79 } 80 createTestJvm(String... arguments)81 static public ProcessBuilder createTestJvm(String... arguments) { 82 return ProcessTools.createTestJvm(withDefaults(arguments)); 83 } 84 } 85