jdk8-mips64-public/hotspot: test/runtime/testlibrary/ClassUnloadCommon.java@dbb05f6d93c4

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

     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  */

    24 import java.io.File;

    25 import java.net.MalformedURLException;

    26 import java.net.URL;

    27 import java.net.URLClassLoader;

    28 import java.nio.file.Paths;

    29 import java.util.ArrayList;

    31 public class ClassUnloadCommon {

    32     public static class TestFailure extends RuntimeException {

    33         TestFailure(String msg) {

    34             super(msg);

    35         }

    36     }

    38     public static void failIf(boolean value, String msg) {

    39         if (value) throw new TestFailure("Test failed: " + msg);

    40     }

    42     private static volatile Object dummy = null;

    43     private static void allocateMemory(int kilobytes) {

    44         ArrayList<byte[]> l = new ArrayList<>();

    45         dummy = l;

    46         for (int i = kilobytes; i > 0; i -= 1) {

    47             l.add(new byte[1024]);

    48         }

    49         l = null;

    50         dummy = null;

    51     }

    53     public static void triggerUnloading() {

    54         allocateMemory(16 * 1024); // yg size is 8m with cms, force young collection

    55         System.gc();

    56     }

    58     public static ClassLoader newClassLoader() {

    59         try {

    60             return new URLClassLoader(new URL[] {

    61                 Paths.get(System.getProperty("test.classes",".") + File.separatorChar + "classes").toUri().toURL(),

    62             }, null);

    63         } catch (MalformedURLException e){

    64             throw new RuntimeException("Unexpected URL conversion failure", e);

    65         }

    66     }

    68 }

Mercurial > jdk8-mips64-public > hotspot / file revision

test/runtime/testlibrary/ClassUnloadCommon.java@dbb05f6d93c4

test/runtime/testlibrary/ClassUnloadCommon.java