I did some search online, and found some folkd complained about the the community version (AS 7) had memory leak problems.
I just wonder is this issue a sporadic one or the widely known issue which exists inherently in AS 7 (the community version)?
If it is a known issue, what are the suggested fixes (for JBoss AS 7.1.1 Final)?
I suggest of to use always last stable of Jboss.
The memory Leak problem usually is caused from problem of the web-app that you are using.
You have to analyze where there is the Memory Leak you have always to analyze the class or package that causes this problem
You can read this guide
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