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Memory leak in Sun Java System Application Server 9.1_01

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yogs1980
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Joined: 2010-09-14

Software details:
Application server: Sun Java System Application Server 9.1_01
JDK: java version "1.5.0_12"
OS: Sun solaris 10

Problem: A web application running on above mentioned application server since 9 months. Suddenly java thread belongs to applications server starts eating the memory considerably.

Please note that web application is not used extensively, every day it would be used for 10 mints. Also webapplication code has reviewd extensively to chec if any problem from portlal.

Here is the Memory consumption trend of the system:

Date domain2 on om1c
2/24/2010
3/4/2010 465480
3/11/2010 467544
3/18/2010 464808
3/25/2010 467056
4/8/2010 476688
4/15/2010 478496
4/22/2010 479376
4/28/2010 489408
5/6/2010 511024
5/13/2010 503648
5/20/2010 524576
5/27/2010 520472
6/3/2010 513840
6/10/2010 511640
6/17/2010 525768
6/24/2010 569976
7/8/2010 547624
7/15/2010 603384
7/22/2010 806216
7/29/2010 866352
8/5/2010 863352

Above snapshot is deverived from jstat-log, it has been attached.

Please let us know your thoughts on this problem.