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test/gc/whitebox/TestWBGC.java@6cbff0651f1a (annotated)

test/gc/whitebox/TestWBGC.java

Mon, 06 Nov 2017 16:51:47 +0800

author

aoqi

date

Mon, 06 Nov 2017 16:51:47 +0800

changeset 7997

6cbff0651f1a

parent 7072

b95d569d10c1

permissions

-rw-r--r--

[Code Reorganization] remove trailing whitespace to pass jcheck test

tschatzl@7072	1	/*
tschatzl@7072	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
tschatzl@7072	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
tschatzl@7072	4	*
tschatzl@7072	5	* This code is free software; you can redistribute it and/or modify it
tschatzl@7072	6	* under the terms of the GNU General Public License version 2 only, as
tschatzl@7072	7	* published by the Free Software Foundation.
tschatzl@7072	8	*
tschatzl@7072	9	* This code is distributed in the hope that it will be useful, but WITHOUT
tschatzl@7072	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
tschatzl@7072	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
tschatzl@7072	12	* version 2 for more details (a copy is included in the LICENSE file that
tschatzl@7072	13	* accompanied this code).
tschatzl@7072	14	*
tschatzl@7072	15	* You should have received a copy of the GNU General Public License version
tschatzl@7072	16	* 2 along with this work; if not, write to the Free Software Foundation,
tschatzl@7072	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
tschatzl@7072	18	*
tschatzl@7072	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
tschatzl@7072	20	* or visit www.oracle.com if you need additional information or have any
tschatzl@7072	21	* questions.
tschatzl@7072	22	*/
tschatzl@7072	23
tschatzl@7072	24	/*
tschatzl@7072	25	* @test TestWBGC
tschatzl@7072	26	* @bug 8055098
tschatzl@7072	27	* @summary Test verify that WB methods isObjectInOldGen and youngGC works correctly.
tschatzl@7072	28	* @library /testlibrary /testlibrary/whitebox
tschatzl@7072	29	* @build TestWBGC
tschatzl@7072	30	* @run main ClassFileInstaller sun.hotspot.WhiteBox
tschatzl@7072	31	* @run driver TestWBGC
tschatzl@7072	32	*/
tschatzl@7072	33	import com.oracle.java.testlibrary.*;
tschatzl@7072	34	import sun.hotspot.WhiteBox;
tschatzl@7072	35
tschatzl@7072	36	public class TestWBGC {
tschatzl@7072	37
tschatzl@7072	38	public static void main(String args[]) throws Exception {
tschatzl@7072	39	ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
tschatzl@7072	40	true,
tschatzl@7072	41	"-Xbootclasspath/a:.",
tschatzl@7072	42	"-XX:+UnlockDiagnosticVMOptions",
tschatzl@7072	43	"-XX:+WhiteBoxAPI",
tschatzl@7072	44	"-XX:MaxTenuringThreshold=1",
tschatzl@7072	45	"-XX:+PrintGC",
tschatzl@7072	46	GCYoungTest.class.getName());
tschatzl@7072	47
tschatzl@7072	48	OutputAnalyzer output = new OutputAnalyzer(pb.start());
tschatzl@7072	49	System.out.println(output.getStdout());
tschatzl@7072	50	output.shouldHaveExitValue(0);
tschatzl@7072	51	output.shouldContain("WhiteBox Initiated Young GC");
tschatzl@7072	52	output.shouldNotContain("Full");
tschatzl@7072	53	// To be sure that we don't provoke Full GC additionaly to young
tschatzl@7072	54	}
tschatzl@7072	55
tschatzl@7072	56	public static class GCYoungTest {
tschatzl@7072	57	static WhiteBox wb = WhiteBox.getWhiteBox();
tschatzl@7072	58	public static Object obj;
tschatzl@7072	59
tschatzl@7072	60	public static void main(String args[]) {
tschatzl@7072	61	obj = new Object();
tschatzl@7072	62	Asserts.assertFalse(wb.isObjectInOldGen(obj));
tschatzl@7072	63	wb.youngGC();
tschatzl@7072	64	wb.youngGC();
tschatzl@7072	65	// 2 young GC is needed to promote object into OldGen
tschatzl@7072	66	Asserts.assertTrue(wb.isObjectInOldGen(obj));
tschatzl@7072	67	}
tschatzl@7072	68	}
tschatzl@7072	69	}