1 /*

        2  * Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.

        3  *

        4  * Redistribution and use in source and binary forms, with or without

        5  * modification, are permitted provided that the following conditions

        6  * are met:

        7  *

        8  *   - Redistributions of source code must retain the above copyright

        9  *     notice, this list of conditions and the following disclaimer.

       10  *

       11  *   - Redistributions in binary form must reproduce the above copyright

       12  *     notice, this list of conditions and the following disclaimer in the

       13  *     documentation and/or other materials provided with the distribution.

       14  *

       15  *   - Neither the name of Sun Microsystems nor the names of its

       16  *     contributors may be used to endorse or promote products derived

       17  *     from this software without specific prior written permission.

       18  *

       19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

       20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

       21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

       22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

       23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

       24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

       25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

       26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

       27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

       28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

       29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

       30  */

       31 

       32 

       33 /* Java class to hold static methods which will be called in byte code

       34  *    injections of all class files.

       35  */

       36 

       37 public class HeapTracker {

       38 

       39     private static int engaged = 0;

       40 

       41     private static native void _newobj(Object thread, Object o);

       42     public static void newobj(Object o)

       43     {

       44         if ( engaged != 0 ) {

       45             _newobj(Thread.currentThread(), o);

       46         }

       47     }

       48 

       49     private static native void _newarr(Object thread, Object a);

       50     public static void newarr(Object a)

       51     {

       52         if ( engaged != 0 ) {

       53             _newarr(Thread.currentThread(), a);

       54         }

       55     }

       56 

       57 }