In the unlikely event that someone else has this problem - just putting it out there.

I’ve been using Java Service Wrapper - its great - to wrap a java loop that is polling SQS. It was working on my local Linux distro - Ubuntu (8.10)- in dev. But it was time to get it out to the Prod server - which is also Ubuntu - though the version is different - its the one that EC2 on Rails is built on (8.04 I believe)- I kept getting Segmentation Faults.

After beating my head against the wall for a couple of hours I decided to use another version. So I uploaded 3.2.3 instead of 3.3.3 and it worked.

Anyway, go figure, it seems to be working now.