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| 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. |
| 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. |
| 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 | + |
| 57 | + static private void addDefaults(List<String> arguments) { |
| 58 | + disableZapUnusedHeapArea(arguments); |
| 59 | + disableVerifyBeforeExit(arguments); |
| 60 | + } |
| 61 | + |
| 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 | + |
| 69 | + static public ProcessBuilder createJavaProcessBuilder(String... arguments) { |
| 70 | + return createJavaProcessBuilder(false, arguments); |
| 71 | + } |
| 72 | + |
| 73 | + static public ProcessBuilder createJavaProcessBuilder(boolean addTestVmAndJavaOptions, |
| 74 | + String... arguments) { |
| 75 | + return ProcessTools.createJavaProcessBuilder(addTestVmAndJavaOptions, |
| 76 | + withDefaults(arguments)); |
| 77 | + } |
| 78 | + |
| 79 | +} |
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