author | cjplummer |
Thu, 29 Oct 2015 12:04:04 -0700 (2015-10-29) | |
changeset 33730 | 30e064828045 |
parent 30604 | b8d532cb6420 |
child 35061 | be6025ebffea |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 2015, 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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/* |
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* @test TestWBGC |
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* @bug 8055098 |
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* @summary Test verify that WB methods isObjectInOldGen and youngGC works correctly. |
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* @library /testlibrary /test/lib |
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* @modules java.base/sun.misc |
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* java.management |
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* @build TestWBGC |
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* @run main ClassFileInstaller sun.hotspot.WhiteBox |
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* @run driver TestWBGC |
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*/ |
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import jdk.test.lib.*; |
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import sun.hotspot.WhiteBox; |
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|
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public class TestWBGC { |
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public static void main(String args[]) throws Exception { |
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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true, |
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"-Xbootclasspath/a:.", |
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"-XX:+UnlockDiagnosticVMOptions", |
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"-XX:+WhiteBoxAPI", |
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"-XX:MaxTenuringThreshold=1", |
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"-XX:+PrintGC", |
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GCYoungTest.class.getName()); |
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OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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System.out.println(output.getStdout()); |
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output.shouldHaveExitValue(0); |
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output.shouldContain("WhiteBox Initiated Young GC"); |
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output.shouldNotContain("Full"); |
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// To be sure that we don't provoke Full GC additionaly to young |
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} |
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public static class GCYoungTest { |
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static WhiteBox wb = WhiteBox.getWhiteBox(); |
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public static Object obj; |
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public static void main(String args[]) { |
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obj = new Object(); |
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Asserts.assertFalse(wb.isObjectInOldGen(obj)); |
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wb.youngGC(); |
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wb.youngGC(); |
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// 2 young GC is needed to promote object into OldGen |
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Asserts.assertTrue(wb.isObjectInOldGen(obj)); |
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} |
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} |
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} |