Huuuge crashing on Eclipse when refreshing or compiling an Android Project...

If you suffer someday for any reason this error:

[2009-03-30 17:28:14 - Dex Loader] Unable to execute dex: null
[2009-03-30 17:28:14 - LlianeJapan]
Conversion to Dalvik format failed:  Unable to execute dex: nu

Here is the solution, just adding two lines to the eclipse.init file...
http://code.google.com/p/android/issues/detail?id=2328