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 
  24 /*
  25  * @test TestOnOutOfMemoryError
  26  * @summary Test using -XX:OnOutOfMemoryError=<cmd>
  27  * @library /testlibrary
  28  * @build TestOnOutOfMemoryError com.oracle.java.testlibrary.*
  29  * @run main TestOnOutOfMemoryError
  30  * @bug 8078470 
  31  */
  32 
  33 import com.oracle.java.testlibrary.*;
  34 
  35 public class TestOnOutOfMemoryError {
  36 
  37     public static void main(String[] args) throws Exception {
  38         if (args.length == 1) {
  39             // This should guarantee to throw:
  40             //  java.lang.OutOfMemoryError: Requested array size exceeds VM limit
  41             Object[] oa = new Object[Integer.MAX_VALUE];
  42             return;
  43         }
  44         
  45         // else this is the main test
  46         String msg = "Test Succeeded";
  47         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  48            "-XX:OnOutOfMemoryError=echo " + msg,
  49            TestOnOutOfMemoryError.class.getName(),
  50            "throwOOME");
  51 
  52         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  53 
  54         /* Actual output should look like this:
  55            #
  56            # java.lang.OutOfMemoryError: Requested array size exceeds VM limit
  57            # -XX:OnOutOfMemoryError="echo Test Succeeded"
  58            #   Executing /bin/sh -c "echo Test Succeeded"...
  59            Test Succeeded
  60            Exception in thread "main" java.lang.OutOfMemoryError: Requested array size exceeds VM limit
  61            at OOME.main(OOME.java:3)
  62 
  63            So we don't want to match on the "# Executing ..." line, and they
  64            both get written to stdout.
  65         */
  66         output.shouldContain("Requested array size exceeds VM limit");
  67         output.stdoutShouldMatch("^" + msg); // match start of line only
  68         System.out.println("PASSED");
  69     }
  70 }