Eclipse memory settings when getting “Java Heap Space” and “Out of Memory”

Question

When trying to launch and run a flex/java project in eclipse I kept getting a \"Out of Memory Exception\" and \"Java Heap Space\" using Eclipse, Tomcat and a JRE.

Wh

Answer 1

Found 2 issues in our case.

1. The Memory was halting and we where mandatory to set the startup perm size to higher value. I guess it was using memory faster then able to allocate it. In our case. -XX:PermSize=256m -XX:MaxPermSize=256m

2. We are using Clearcase and the plugin from Rational Clearcase SCM (7.0.0.2) was used in Eclipse. The plugin was the case of why Eclipse crashed. And at the moment we do not know why, but could be good to know for others. Was forced to disable it.