RMIConnectionImpl has been updated after SecurityManager removal, but a few items were left for later follow-up:

There is Exception handling where the Exception is wrapped in a PrivilegedActionException. This should be removed, and the PrivilegedActionException import can be removed.

The method "doPrivilegedOperation" no longer uses a PrivilegedAction. The method should be simply doOperation. The method has many call sites (all the MBean operations).