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             t.printStackTrace();
  76         }
  77         return t;
  78     }
  79 }