I always run out of memory since build ~859 and it seems to get worse with every build. I have pretty large jsp files (1000+ lines) with several classes in the jsp for debugging purpose.
The only pattern I can observe is that everytime I cut and paste a couple of lines it consumes an additional 4-5MB and does free them up. More lines can increase memory consuption up to 10MB. When the garbage collection kicks in it only frees up 10-20MB.
My memory settings are: -Xms16m -Xmx256m