Major Description
The code that generate unique identifiers, like UIComponentBase.getClientId() and others inside facelets are operations that are called very frequent, so it is necessary to ensure that code is as fast as possible and use few memory resources
Also, doing some performance tests I notice Long.toString(long, radix) is too expensive. It creates a lot of unnecessary String objects.
In practice, we should prevent create object instances in such locations, and use only one StringBuffer if possible.