Name: nt126004 Date: 12/20/2002


FULL PRODUCT VERSION :
java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)

FULL OPERATING SYSTEM VERSION :
SunOS 5.9 Generic_112233-02 sun4u sparc SUNW,Sun-Fire-880

ADDITIONAL OPERATING SYSTEMS :
Linux 2.4.18-17.8.0 #1 Tue Oct 8 13:51:08 EDT 2002 i686 i686
i386 GNU/Linux



A DESCRIPTION OF THE PROBLEM :
The JVM seems to have a memory leak: when run with the -Xmx
and -Xms options, then the JVM seems to start filling up all
the available memory of the system, and then throws an out
of memory exception.

Even without using the -Xm* options the program grows uncontrolably on Solaris.

The problem presents both on a Red-hat Linux system and on a
Solaris system, even using -Xint or -Xfuture options.
Maybe also other systems are affected by this bug, though I
cannot confirm.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Run the included program
2. the system will swap and eventually you'll have an OutOfMemoryError and
a core dump.

EXPECTED VERSUS ACTUAL BEHAVIOR :
Obviously, I didn't expect it to fill up all my memory :-)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.zip.*;

public class Bug {
        public static void main( String args[] ) {
                while ( true ) {
                        /* If ANY of these two lines is not commented, the JVM
                         runs out of memory */
                        final Deflater deflater = new Deflater( 9, true );
                        final Inflater inflater = new Inflater( true );
                }
        }
}
---------- END SOURCE ----------

CUSTOMER WORKAROUND :
One way to avoid the problem is by passing the -Xincgc
option to the JVM
(Review ID: 173339)
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