Uanable to build bootimage

Something goes wrong during compiling the sources from jnodesources-0.1.6.tar.gz.

The error message is

java-image:
[bootimage] Building for CPU: name:GenuineIntel family:0 model:0 step:0 features:FPU,PSE raw:00000001 756E6547 6C65746E 49656E69 00000000 00000000 00000000 00000009
[bootimage] java.lang.OutOfMemoryError
[bootimage] BUILD FAILED: file:C:/Projects/jnode/all/build-x86.xml:181: java.lang.OutOfMemoryError
Total time: 21 seconds

During the build process there was around 220M of free memory shown in TaskManager. The system is Athlon 2200+, 512M RAM, Win 2000, Eclipse 2.1.2, Sun JRE 1.4.

What can be solution ? I think it has no in common with memory limitations.

Thanks.

Resolved

Sorry, forgot to increase the -Xmx setting to -Xmx768M. Everything builds fine now.