Huge amounts of memory being used on form submission

I have an application with a dynamically generated form with two text input boxes and a checkbox for each row. It works ok when it only has about 30 rows, but I need to be able to have it work with 200+.

When I have alot of rows and I submit the form it uses a HUGE amount of memory and runs out of heap space. Maybe my idea of 'lots of memory' is wrong but I'm talking about a tomcat server for this one app and it's got 768 MB of memory dedicated to it. It's not my code that is supposed to process the submitted stuff though - it doesn't get that far. From my testing I found when this problem happens it's before it even gets to the action method, so I'm thinking it must be to do with setting the new values to the backing objects. Has anyone else got this problem? Is it common? What can I do to get it to use less memory!?

[850 byte] By [Ravea] at [2007-10-3 0:14:11]
# 1
PLEASE! Can't anyone help me? I've tried allocating 2 GIGABYTES of memory now and it still runs out of memory!
Ravea at 2007-7-14 17:04:26 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 2
What implementation of JSF and what version you`re using. Paste the source code here please.
amitteva at 2007-7-14 17:04:26 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 3

I'm using MyFaces 1.1.1, and I can't really post the code here (propiretary, etc, etc).

I have fixed the problem temporarily by creating some bogus getters and setters that just work with strings (instead of floats and dates) and removed the converters and validators on the hidden fields I have to have for my javascript functions. I know this is a terrible design practice but the application is working for now until I can find more ways to reduce the amount of memory being used.

Ravea at 2007-7-14 17:04:26 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 4
Try the latest version of myfaces impl and tomahawk
amitteva at 2007-7-14 17:04:26 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 5
Ok, if there's a newer version I'll try it and see what happens.
Ravea at 2007-7-14 17:04:26 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...
# 6
The current version is 1.1.3
amitteva at 2007-7-14 17:04:26 > top of Java-index,Enterprise & Remote Computing,Web Tier APIs...