Comment 7 for bug 128253

I can confirm the problem (using sun 1.6.0 jdk).
Eclipse is quite unusable on Gusty for me, it will crash within the first minute of use.

Also note that running Eclipse 3.3 Europa downloaded from eclipse.org seems much more stable. I couldn't make it crash until now, after about one hour of use.
I didn't try 3.2 from eclipse.org, so I can't tell if 3.3 fixes a bug or the problem is in the Ubuntu package.