1 /*

     2  * Copyright (c) 2015, 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  */

    23 package com.oracle.testlibrary.jsr292;

    24 

    25 import jdk.testlibrary.Utils;

    26 

    27 /**

    28  * Helper class used to catch and process VirtualMachineError with message "Out

    29  * of space in CodeCache". Some JSR292 tests run out of code cache size, so code

    30  * cache overflows and VME is thrown. This VME is considered as non-critical in

    31  * some JSR292 tests, so it should be processed to prevent test failure.

    32  */

    33 public class CodeCacheOverflowProcessor {

    34 

    35     /**

    36      * Checks if an instance of Throwable is caused by VirtualMachineError with

    37      * message "Out of space in CodeCache". May be used as filter in method

    38      * {@code jdk.testlibrary.Utils.filterException}.

    39      *

    40      * @param t - Throwable to check.

    41      * @return true if Throwable is caused by VME, false otherwise.

    42      */

    43     public static Boolean isThrowableCausedByVME(Throwable t) {

    44         Throwable causeOfT = t;

    45         do {

    46             if (causeOfT instanceof VirtualMachineError

    47                     && causeOfT.getMessage().matches(".*[Oo]ut of space"

    48                             + " in CodeCache.*")) {

    49                 return true;

    50             }

    51             causeOfT = causeOfT != null ? causeOfT.getCause() : null;

    52         } while (causeOfT != null && causeOfT != t);

    53         return false;

    54     }

    55 

    56     /**

    57      * Checks if the given test throws an exception caused by

    58      * VirtualMachineError with message "Out of space in CodeCache", and, if VME

    59      * takes place, processes it so that no exception is thrown, and prints its

    60      * stack trace. If test throws exception not caused by VME, this method just

    61      * re-throws this exception.

    62      *

    63      * @param test - test to check for and process VirtualMachineError.

    64      * @return - an exception caused by VME or null

    65      *           if test has thrown no exception.

    66      * @throws Throwable - if test has thrown an exception

    67      *                     that is not caused by VME.

    68      */

    69     public static Throwable runMHTest(Utils.ThrowingRunnable test) throws Throwable {

    70         Throwable t = Utils.filterException(test::run,

    71                 CodeCacheOverflowProcessor::isThrowableCausedByVME);

    72         if (t != null) {

    73             System.err.printf("%nNon-critical exception caught becuse of"

    74                     + " code cache size is not enough to run all test cases.%n%n");

    75         }

    76         return t;

    77     }

    78 }