Hmm, these kind of issues have proven hard to reproduce in the past. I think the best way for us to proceed with the issue would be if you could get us the heap dump from LoadUI. This would really make us able to pinpoint the problem. Could you see if you could try to get one with some method described in the below link?
http://stackoverflow.com/questions/4076 ... not-runninI think that VisualVM is the easiest tool for acquiring an heap dump.
Its great to hear that like SoapUI and LoadUI! Do you want me to connect you to a LoadUI sales guy? He can probably make a good deal for your company.
Also, thanks for reporting the issues you have found. It really helps us make LoadUI great.
Regards,
Max