| /* |
| * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import jdk.test.lib.process.ExitCode; |
| import jdk.test.lib.cli.CommandLineOptionTest; |
| |
| /** |
| * @test |
| * @bug 8031323 |
| * @summary Verify SurvivorAlignmentInBytes option processing. |
| * @library /test/lib |
| * @requires vm.opt.SurvivorAlignmentInBytes == null |
| * & vm.opt.ObjectAlignmentInBytes == null |
| * & vm.opt.UnlockExperimentalVMOptions == null |
| * & (vm.opt.IgnoreUnrecognizedVMOptions == null |
| * | vm.opt.IgnoreUnrecognizedVMOptions == "false") |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main TestSurvivorAlignmentInBytesOption |
| */ |
| public class TestSurvivorAlignmentInBytesOption { |
| public static void main(String args[]) throws Throwable { |
| String optionName = "SurvivorAlignmentInBytes"; |
| String unlockExperimentalVMOpts = "UnlockExperimentalVMOptions"; |
| String optionIsExperimental |
| = CommandLineOptionTest.getExperimentalOptionErrorMessage( |
| optionName); |
| String valueIsTooSmall= ".*SurvivorAlignmentInBytes.*must be greater" |
| + " than or equal to ObjectAlignmentInBytes.*"; |
| String mustBePowerOf2 = ".*SurvivorAlignmentInBytes.*must be " |
| + "power of 2.*"; |
| |
| // Verify that without -XX:+UnlockExperimentalVMOptions usage of |
| // SurvivorAlignmentInBytes option will cause JVM startup failure |
| // with the warning message saying that that option is experimental. |
| String shouldFailMessage = String.format("JVM option '%s' is " |
| + "experimental.%nJVM startup should fail without " |
| + "-XX:+UnlockExperimentalVMOptions option", optionName); |
| CommandLineOptionTest.verifyJVMStartup( |
| new String[]{optionIsExperimental}, null, |
| shouldFailMessage, shouldFailMessage, |
| ExitCode.FAIL, false, |
| "-XX:-UnlockExperimentalVMOptions", |
| CommandLineOptionTest.prepareBooleanFlag( |
| unlockExperimentalVMOpts, false), |
| CommandLineOptionTest.prepareNumericFlag(optionName, 64)); |
| |
| // Verify that with -XX:+UnlockExperimentalVMOptions passed to JVM |
| // usage of SurvivorAlignmentInBytes option won't cause JVM startup |
| // failure. |
| String shouldPassMessage = String.format("JVM option '%s' is " |
| + "experimental.%nJVM startup should pass with " |
| + "-XX:+UnlockExperimentalVMOptions option", optionName); |
| String noWarningMessage = "There should be no warnings when use " |
| + "with -XX:+UnlockExperimentalVMOptions option"; |
| CommandLineOptionTest.verifyJVMStartup( |
| null, new String[]{optionIsExperimental}, |
| shouldPassMessage, noWarningMessage, |
| ExitCode.OK, false, |
| CommandLineOptionTest.prepareBooleanFlag( |
| unlockExperimentalVMOpts, true), |
| CommandLineOptionTest.prepareNumericFlag(optionName, 64)); |
| |
| // Verify that if specified SurvivorAlignmentInBytes is lower than |
| // ObjectAlignmentInBytes, then the JVM startup will fail with |
| // appropriate error message. |
| shouldFailMessage = String.format("JVM startup should fail with " |
| + "'%s' option value lower than ObjectAlignmentInBytes", optionName); |
| CommandLineOptionTest.verifyJVMStartup( |
| new String[]{valueIsTooSmall}, null, |
| shouldFailMessage, shouldFailMessage, |
| ExitCode.FAIL, false, |
| CommandLineOptionTest.prepareBooleanFlag( |
| unlockExperimentalVMOpts, true), |
| CommandLineOptionTest.prepareNumericFlag(optionName, 2)); |
| |
| // Verify that if specified SurvivorAlignmentInBytes value is not |
| // a power of 2 then the JVM startup will fail with appropriate error |
| // message. |
| shouldFailMessage = String.format("JVM startup should fail with " |
| + "'%s' option value is not a power of 2", optionName); |
| CommandLineOptionTest.verifyJVMStartup( |
| new String[]{mustBePowerOf2}, null, |
| shouldFailMessage, shouldFailMessage, |
| ExitCode.FAIL, false, |
| CommandLineOptionTest.prepareBooleanFlag( |
| unlockExperimentalVMOpts, true), |
| CommandLineOptionTest.prepareNumericFlag(optionName, 127)); |
| |
| // Verify that if SurvivorAlignmentInBytes has correct value, then |
| // the JVM will be started without errors. |
| shouldPassMessage = String.format("JVM startup should pass with " |
| + "correct '%s' option value", optionName); |
| noWarningMessage = String.format("There should be no warnings when use " |
| + "correct '%s' option value", optionName); |
| CommandLineOptionTest.verifyJVMStartup( |
| null, new String[]{".*SurvivorAlignmentInBytes.*"}, |
| shouldPassMessage, noWarningMessage, |
| ExitCode.OK, false, |
| CommandLineOptionTest.prepareBooleanFlag( |
| unlockExperimentalVMOpts, true), |
| CommandLineOptionTest.prepareNumericFlag(optionName, 128)); |
| |
| // Verify that we can setup different SurvivorAlignmentInBytes values. |
| for (int alignment = 32; alignment <= 128; alignment *= 2) { |
| shouldPassMessage = String.format("JVM startup should pass with " |
| + "'%s' = %d", optionName, alignment); |
| CommandLineOptionTest.verifyOptionValue(optionName, |
| Integer.toString(alignment), shouldPassMessage, |
| CommandLineOptionTest.prepareBooleanFlag( |
| unlockExperimentalVMOpts, true), |
| CommandLineOptionTest.prepareNumericFlag( |
| optionName, alignment)); |
| } |
| } |
| } |