1 /*

     2  * Copyright 1999 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 4136312 4073244

    27  * @summary init:  Verify that overzealous dead-code elimination no

    28  * longer removes live code.

    29  * @author dps

    30  *

    31  * @run clean DeadCode5

    32  * @run compile -O DeadCode5.java

    33  * @run main DeadCode5

    34  */

    35 

    36 

    37 // Test for bug 4136312

    38 

    39 public class DeadCode5

    40 {

    41     int fld;

    42 

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

    44         DeadCode5 t = null;

    45         try {

    46             int dummy = t.fld;

    47             // if we got here, then there must be a problem

    48             throw new RuntimeException("accidental removal of live code");

    49         } catch (NullPointerException e) {

    50             System.out.println("NullPointerException correctly thrown");

    51             e.printStackTrace();

    52         }

    53     }

    54 }