| /* |
| * Copyright (c) 2016, 2018, 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 |
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| */ |
| |
| /** |
| * @test SharedStringsDedup |
| * @summary Test -Xshare:auto with shared strings and -XX:+UseStringDeduplication |
| * @requires vm.cds.archived.java.heap |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main SharedStringsDedup |
| */ |
| |
| import jdk.test.lib.cds.CDSTestUtils; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import java.io.File; |
| |
| // The main purpose is to test the interaction between shared strings |
| // and -XX:+UseStringDeduplication. We run in -Xshare:auto mode so |
| // we don't need to worry about CDS archive mapping failure (which |
| // doesn't happen often so it won't impact coverage). |
| public class SharedStringsDedup { |
| public static void main(String[] args) throws Exception { |
| OutputAnalyzer out = |
| CDSTestUtils.createArchive(); |
| CDSTestUtils.checkDump(out, "Shared string table stats"); |
| CDSTestUtils.runWithArchiveAndCheck("-XX:+UseStringDeduplication"); |
| } |
| } |
