Mercurial > hg > truffle
view test/runtime/SharedArchiveFile/CdsDifferentObjectAlignment.java @ 15628:4e9176d70690
add documentation to HotSpotVM* annotatations
author | twisti |
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date | Tue, 13 May 2014 14:13:15 -0700 |
parents | 4ca6dc0799b6 |
children | 7848fc12602b |
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/* * Copyright (c) 2013, 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. */ /* * @test CdsDifferentObjectAlignment * @summary Testing CDS (class data sharing) using varying object alignment. * Using different object alignment for each dump/load pair. * This is a negative test; using object alignment for loading that * is different from object alignment for creating a CDS file * should fail when loading. * @library /testlibrary */ import com.oracle.java.testlibrary.*; public class CdsDifferentObjectAlignment { public static void main(String[] args) throws Exception { String nativeWordSize = System.getProperty("sun.arch.data.model"); if (!Platform.is64bit()) { System.out.println("ObjectAlignmentInBytes for CDS is only " + "supported on 64bit platforms; this plaform is " + nativeWordSize); System.out.println("Skipping the test"); } else { createAndLoadSharedArchive(16, 64); createAndLoadSharedArchive(64, 32); } } // Parameters are object alignment expressed in bytes private static void createAndLoadSharedArchive(int createAlignment, int loadAlignment) throws Exception { String createAlignmentArgument = "-XX:ObjectAlignmentInBytes=" + createAlignment; String loadAlignmentArgument = "-XX:ObjectAlignmentInBytes=" + loadAlignment; ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./sample.jsa", "-Xshare:dump", createAlignmentArgument); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldContain("Loading classes to share"); output.shouldHaveExitValue(0); pb = ProcessTools.createJavaProcessBuilder( "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./sample.jsa", "-Xshare:on", loadAlignmentArgument, "-version"); output = new OutputAnalyzer(pb.start()); String expectedErrorMsg = String.format( "The shared archive file's ObjectAlignmentInBytes of %d " + "does not equal the current ObjectAlignmentInBytes of %d", createAlignment, loadAlignment); output.shouldContain(expectedErrorMsg); output.shouldHaveExitValue(1); } }