Out of Memory compiling sources

[Luis Marques]

Hi people,

I'm using Maven b4, and when i try to compile a lot of java sources (more or less 
1400) in windows system with 512Mb RAM,
it sends an memory compile error!
The most interesting thing is that i still see some memory available, and at the point 
of the fail the process han't done any paging, yet!!!!
Am i doing something wrong?!?!?
Please help.
Regards,
Lu�s Marques