Fedora xen - Feb 2006 - J2sdk on fc4 xen!

I am trying to install j2sdk rpm on fc4 base xen image but the same
fails with "out of memory" error.
I am not sure whats the problem as I am running that domain with a
memory of 1024M. 

Any one have any clue whats wrong..?

Thanks.
Jairaj Menon