1 /*

     2  * Copyright (c) 2019, 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

    26  * @bug 8223174

    27  * @summary Pattern.compile() can throw confusing NegativeArraySizeException

    28  * @requires os.maxMemory >= 5g

    29  * @run main/othervm NegativeArraySize -Xms5G -Xmx5G

    30  */

    31 

    32 import java.util.regex.Pattern;

    33 

    34 public class NegativeArraySize {

    35     public static void main(String[] args) {

    36         try {

    37             Pattern.compile("\\Q" + "a".repeat(42 + Integer.MAX_VALUE / 3));

    38             throw new AssertionError("expected to throw");

    39         } catch (OutOfMemoryError expected) {

    40         }

    41     }

    42 }