hotspot/test/runtime/Safepoint/AssertSafepointCheckConsistency4.java
author coleenp
Thu, 11 Dec 2014 21:34:43 -0500
changeset 28163 322d55d167be
child 28204 344d97fad05b
permissions -rw-r--r--
8047290: Make Mutex::_no_safepoint_check_flag locks verify that this lock never checks for safepoint Summary: Ensure consistent safepoint checking in Mutex/Monitor locking methods. Reviewed-by: dholmes, dcubed, coleenp Contributed-by: max.ockner@oracle.com
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/*
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 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 8047290
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 * @summary Ensure that Monitor::lock does not assert when it correctly acquires a lock which must always have safepoint checks.
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 * @library /testlibrary /testlibrary/whitebox
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 * @build AssertSafepointCheckConsistency4
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 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
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 * @run main AssertSafepointCheckConsistency4
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 */
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import com.oracle.java.testlibrary.*;
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import sun.hotspot.WhiteBox;
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public class AssertSafepointCheckConsistency4 {
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    public static void main(String args[]) throws Exception {
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        if (args.length > 0) {
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            WhiteBox.getWhiteBox().assertMatchingSafepointCalls(true, false);
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        }
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        if (Platform.isDebugBuild()){
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            ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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               "-Xbootclasspath/a:.",
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               "-XX:+UnlockDiagnosticVMOptions",
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               "-XX:+WhiteBoxAPI",
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               "-XX:-TransmitErrorReport",
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               "-Xmx32m",
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               "AssertSafepointCheckConsistency4",
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               "test");
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            OutputAnalyzer output = new OutputAnalyzer(pb.start());
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            output.shouldNotContain("assert");
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            output.shouldNotContain("never");
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            output.shouldNotContain("always");
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        }
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    }
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}
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