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test/runtime/interned/SanityTest.java@dbb05f6d93c4 (annotated)

test/runtime/interned/SanityTest.java

Mon, 28 Jul 2014 15:06:38 -0700

author

fzhinkin

date

Mon, 28 Jul 2014 15:06:38 -0700

changeset 6997

dbb05f6d93c4

parent 0

f90c822e73f8

permissions

-rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test SanityTest
aoqi@0	26	* @summary Sanity check of String.intern() & GC
aoqi@0	27	* @library /testlibrary /testlibrary/whitebox
aoqi@0	28	* @build SanityTest
aoqi@0	29	* @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0	30	* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI SanityTest
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	import java.util.*;
aoqi@0	34	import sun.hotspot.WhiteBox;
aoqi@0	35
aoqi@0	36
aoqi@0	37	public class SanityTest {
aoqi@0	38	public static Object tmp;
aoqi@0	39	public static void main(String... args) {
aoqi@0	40
aoqi@0	41	WhiteBox wb = WhiteBox.getWhiteBox();
aoqi@0	42	StringBuilder sb = new StringBuilder();
aoqi@0	43	sb.append("1234x"); sb.append("x56789");
aoqi@0	44	String str = sb.toString();
aoqi@0	45
aoqi@0	46	if (wb.isInStringTable(str)) {
aoqi@0	47	throw new RuntimeException("String " + str + " is already interned");
aoqi@0	48	}
aoqi@0	49	str.intern();
aoqi@0	50	if (!wb.isInStringTable(str)) {
aoqi@0	51	throw new RuntimeException("String " + str + " is not interned");
aoqi@0	52	}
aoqi@0	53	str = sb.toString();
aoqi@0	54	wb.fullGC();
aoqi@0	55	if (wb.isInStringTable(str)) {
aoqi@0	56	throw new RuntimeException("String " + str + " is in StringTable even after GC");
aoqi@0	57	}
aoqi@0	58	}
aoqi@0	59	}