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view test/gc/arguments/TestG1HeapRegionSize.java @ 20228:f72d8917322a
8050978: Fix bad field access check in C1 and C2
Summary: JCK8 test vm/constantpool/accessControl/accessControl004/accessControl00402m3/accessControl00402m3.html fails with -Xbatch -Xcomp due to bad field access check in C1 and C2. Fix: In ciField::ciField(), just before the canonical holder is stored into the _holder variable (and which is used by ciField::will_link()) perform an additional access check with the holder declared in the class file. If this check fails, store the declared holder instead and ciField::will_link() will bail out compilation for this field later on. Then, the interpreter will throw an PrivilegedAccessException at runtime.
Reviewed-by: kvn, vlivanov
Contributed-by: andreas.schoesser@sap.com
author | goetz |
---|---|
date | Fri, 18 Jul 2014 09:04:01 +0200 |
parents | dae8324fc7d1 |
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 TestG1HeapRegionSize * @key gc * @bug 8021879 * @summary Verify that the flag G1HeapRegionSize is updated properly * @run main/othervm -Xmx64m TestG1HeapRegionSize 1048576 * @run main/othervm -XX:G1HeapRegionSize=2m -Xmx64m TestG1HeapRegionSize 2097152 * @run main/othervm -XX:G1HeapRegionSize=3m -Xmx64m TestG1HeapRegionSize 2097152 * @run main/othervm -XX:G1HeapRegionSize=64m -Xmx256m TestG1HeapRegionSize 33554432 */ import sun.management.ManagementFactoryHelper; import com.sun.management.HotSpotDiagnosticMXBean; import com.sun.management.VMOption; public class TestG1HeapRegionSize { public static void main(String[] args) { HotSpotDiagnosticMXBean diagnostic = ManagementFactoryHelper.getDiagnosticMXBean(); VMOption option = diagnostic.getVMOption("UseG1GC"); if (option.getValue().equals("false")) { System.out.println("Skipping this test. It is only a G1 test."); return; } String expectedValue = getExpectedValue(args); option = diagnostic.getVMOption("G1HeapRegionSize"); if (!expectedValue.equals(option.getValue())) { throw new RuntimeException("Wrong value for G1HeapRegionSize. Expected " + expectedValue + " but got " + option.getValue()); } } private static String getExpectedValue(String[] args) { if (args.length != 1) { throw new RuntimeException("Wrong number of arguments. Expected 1 but got " + args.length); } return args[0]; } }