Interesting , I ran the same Test.class program with Sun's jdk1.1.7 and it is huge compared to gcj 8) 65613 hasty 38 0 19164K 1748K RUN 0:00 25.00% 1.22% java Some of the 19MB is tied up with shared libraries however 19MB of virtual space for a simple hello program is rather generous 8) Cheers Amancio