Mercurial > hg > graal-compiler
view test/runtime/interned/SanityTest.java @ 13662:91eebfc42e9f
Ruby: expose the constant CoreLibrary.RUBY_VERSION
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Thu, 16 Jan 2014 16:40:37 -0800 |
parents | ede380e13960 |
children |
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/* * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test SanityTest * @summary Sanity check of String.intern() & GC * @library /testlibrary /testlibrary/whitebox * @build SanityTest * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI SanityTest */ import java.util.*; import sun.hotspot.WhiteBox; public class SanityTest { public static Object tmp; public static void main(String... args) { WhiteBox wb = WhiteBox.getWhiteBox(); StringBuilder sb = new StringBuilder(); sb.append("1234x"); sb.append("x56789"); String str = sb.toString(); if (wb.isInStringTable(str)) { throw new RuntimeException("String " + str + " is already interned"); } str.intern(); if (!wb.isInStringTable(str)) { throw new RuntimeException("String " + str + " is not interned"); } str = sb.toString(); wb.fullGC(); if (wb.isInStringTable(str)) { throw new RuntimeException("String " + str + " is in StringTable even after GC"); } } }