Mercurial > hg > graal-compiler
view test/runtime/ClassUnload/UnloadTest.java @ 19218:58f59bada2c1
GraalCompiler.emitLowLevel: remove unused parameter.
author | Josef Eisl <josef.eisl@jku.at> |
---|---|
date | Mon, 09 Feb 2015 11:10:00 +0100 |
parents | 33bcd9ead1d5 |
children |
line wrap: on
line source
/* * 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 UnloadTest * @library /runtime/testlibrary /testlibrary /testlibrary/whitebox * @library classes * @build ClassUnloadCommon test.Empty * @build UnloadTest * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -Xmn8m -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI UnloadTest */ import sun.hotspot.WhiteBox; /** * Test that verifies that classes are unloaded when they are no longer reachable. * * The test creates a class loader, uses the loader to load a class and creates an instance * of that class. The it nulls out all the references to the instance, class and class loader * and tries to trigger class unloading. Then it verifies that the class is no longer * loaded by the VM. */ public class UnloadTest { private static String className = "test.Empty"; public static void main(String... args) throws Exception { run(); } private static void run() throws Exception { final WhiteBox wb = WhiteBox.getWhiteBox(); ClassUnloadCommon.failIf(wb.isClassAlive(className), "is not expected to be alive yet"); ClassLoader cl = ClassUnloadCommon.newClassLoader(); Class<?> c = cl.loadClass(className); Object o = c.newInstance(); ClassUnloadCommon.failIf(!wb.isClassAlive(className), "should be live here"); cl = null; c = null; o = null; ClassUnloadCommon.triggerUnloading(); ClassUnloadCommon.failIf(wb.isClassAlive(className), "should have been unloaded"); } }