Thu, 19 Sep 2013 09:36:51 -0700
Added tag jdk8-b108 for changeset 85072013aad4
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 | } |