Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/runtime/interned/SanityTest.java
test/runtime/interned/SanityTest.java
- changeset 4850
- ede380e13960
- parent 0
- f90c822e73f8
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| 4849:e458120c6e1a | 4850:ede380e13960 |
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| 1 /* | |
| 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test SanityTest | |
| 26 * @summary Sanity check of String.intern() & GC | |
| 27 * @library /testlibrary /testlibrary/whitebox | |
| 28 * @build SanityTest | |
| 29 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
| 30 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI SanityTest | |
| 31 */ | |
| 32 | |
| 33 import java.util.*; | |
| 34 import sun.hotspot.WhiteBox; | |
| 35 | |
| 36 | |
| 37 public class SanityTest { | |
| 38 public static Object tmp; | |
| 39 public static void main(String... args) { | |
| 40 | |
| 41 WhiteBox wb = WhiteBox.getWhiteBox(); | |
| 42 StringBuilder sb = new StringBuilder(); | |
| 43 sb.append("1234x"); sb.append("x56789"); | |
| 44 String str = sb.toString(); | |
| 45 | |
| 46 if (wb.isInStringTable(str)) { | |
| 47 throw new RuntimeException("String " + str + " is already interned"); | |
| 48 } | |
| 49 str.intern(); | |
| 50 if (!wb.isInStringTable(str)) { | |
| 51 throw new RuntimeException("String " + str + " is not interned"); | |
| 52 } | |
| 53 str = sb.toString(); | |
| 54 wb.fullGC(); | |
| 55 if (wb.isInStringTable(str)) { | |
| 56 throw new RuntimeException("String " + str + " is in StringTable even after GC"); | |
| 57 } | |
| 58 } | |
| 59 } |
