We found Jboss down this morning, looking into the log and notice lots of except

We found Jboss down this morning, looking into the log and notice lots of exception related to: java.lang.OutOfMemoryError: PermGen space

We are using Appian 7.6, this issue happens in DEV environment, And the PermSize setting in Jboss Standalone.conf looks like this:
# Suggested default memory settings for Oracle JVM
USER_MEM_ARGS="-Xms2048m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=256m -XX:+HeapDumpOnOutOfMemoryError"

Both standalone.conf and log file could be found from attachment, we would like to know what's the best solution for this issue.

Thanks!...

OutOfMemoryIssue.zip

OriginalPostID-117726

OriginalPostID-117726