Open T4CStatement never releasing from memory

Hello everyone. Recently we had an OOME (OutOfMemoryException) in one of our clients. We got the hprof and discovered that 95% of memory was being used by T4CStatements. We investigated the problem and found no opened connection, or ResultSets/Statements left open in our code, but still we got a T4CStatement fixed in the memory, never being get by the Garbage Collector.
Does someone had the same problem? Is that a problem with the driver?
We have being investigating this for quite some time, but can't seem to find a solution or at least a direction.

Caesar wrote:
To check if the result sets/statements/connections were closed, we looked through the code. In this case, we looked for patterns where ResultSet/PreparedStatement were assigned to variables and looked for the close.
Which means you could have missed places.
Presumbly you also verified exception handling as well.
For the connections, it's guaranteed as the classes only know our connection adapter that has the method for getting instances, where we searched for the calls and looked for the disconnection.
Again which still means you could have missed some. However I think open connections would result in a different error.

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[svn] 2692: Bug: BLZ-227 - When using JMS Destination, MessageClient and FlexClient not released from memory when the session times out .

Revision: 2692
Author: [email protected]
Date: 2008-07-31 13:05:35 -0700 (Thu, 31 Jul 2008)
Log Message:
Bug: BLZ-227 - When using JMS Destination, MessageClient and FlexClient not released from memory when the session times out.
QA: Yes
Doc: No
Checkintests: Pass
Details: Fixed a memory leak with JMS adapter. Also a minor tweak to QA build file to not to start the server if the server is already running.
Ticket Links:
http://bugs.adobe.com/jira/browse/BLZ-227
Modified Paths:
blazeds/branches/3.0.x/modules/core/src/java/flex/messaging/services/messaging/adapters/J MSAdapter.java
blazeds/branches/3.0.x/qa/build.xml

Revision: 2692
Author: [email protected]
Date: 2008-07-31 13:05:35 -0700 (Thu, 31 Jul 2008)
Log Message:
Bug: BLZ-227 - When using JMS Destination, MessageClient and FlexClient not released from memory when the session times out.
QA: Yes
Doc: No
Checkintests: Pass
Details: Fixed a memory leak with JMS adapter. Also a minor tweak to QA build file to not to start the server if the server is already running.
Ticket Links:
http://bugs.adobe.com/jira/browse/BLZ-227
Modified Paths:
blazeds/branches/3.0.x/modules/core/src/java/flex/messaging/services/messaging/adapters/J MSAdapter.java
blazeds/branches/3.0.x/qa/build.xml

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I have this weird problem for a while and try to solve it to look up on the net for proper solution but still I am clueless.
When I check my application's memory usage with flex profiler (4.6) the portion of String keep increasing and eventually reach the point of crash.
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![enter image description here][1]
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     commonFunction.printLog("Event Server eventNotify sizeOfFullListNotify=" + sizeOfFullListNotify);
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    var tempLength:uint = rawArray.length;
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     var tempArray:ByteArray = new ByteArray();
     var tempLeftOver:ByteArray = new ByteArray();
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var euckrString:Object(String) is the portion that never cleared from the memory.
It keeps stacking till crashes.

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[GC 148480K->139612K(163808K), 0.0225914 secs]
[Full GC[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor289]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor290]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor273]
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[GC 188789K->177116K(203264K), 0.0180729 secs]
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[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor322]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor309]
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[Full GC 203263K->203233K(203264K), 1.3354548 secs]
[Full GC 203263K->203258K(203264K), 1.2873518 secs]
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java.lang.OutOfMemoryError
>
[Full GC 203263K->203233K(203264K), 1.2814516 secs]
[Full GC 203233K->203231K(203264K), 1.6029044 secs]
[Full GC 203263K->203242K(203264K), 1.3081352 secs]
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[Full GC 203263K->203247K(203264K), 1.3161194 secs]
[Full GC 203263K->203249K(203264K), 1.2954988 secs]
[Full GC 203263K->203247K(203264K), 1.6423404 secs]
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If anyone has an idea or can help me, I would appreciate it very very much. :)

Hi ,
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Java JDK1.4.2_08
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Open T4CStatement never releasing from memory

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