1 /*

     2  * Copyright (c) 2010, 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 /**

    26  * @test

    27  * @bug 7002666

    28  * @summary eclipse CDT projects crash with compressed oops

    29  *

    30  * @run main/othervm -Xbatch -XX:CompileOnly=Test7002666.test,java/lang/reflect/Array Test7002666

    31  *

    32  * This will only reliably fail with a fastdebug build since it relies

    33  * on seeing garbage in the heap to die.  It could be made more

    34  * reliable in product mode but that would require greatly increasing

    35  * the runtime.

    36  */

    37 

    38 public class Test7002666 {

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

    40         for (int i = 0; i < 25000; i++) {

    41             Object[] a = test(Test7002666.class, new Test7002666());

    42             if (a[0] != null) {

    43                 // The element should be null but if it's not then

    44                 // we've hit the bug.  This will most likely crash but

    45                 // at least throw an exception.

    46                 System.err.println(a[0]);

    47                 throw new InternalError(a[0].toString());

    48 

    49             }

    50         }

    51     }

    52     public static Object[] test(Class c, Object o) {

    53         // allocate an array small enough to be trigger the bug

    54         Object[] a = (Object[])java.lang.reflect.Array.newInstance(c, 1);

    55         return a;

    56     }

    57 }