OF-2292: Prevent ConcurrentModificationException when syncing clustered MUC occupants
This creates a copy of a collection over which is being operated, to prevent the collection to be modified while being iterated over.
daryl herzmann <akrherz@iastate.edu>
7b31bc9ec9f90d5c7cdad7eb100760c65a4026ab
Merge pull request #1884 from guusdk/OF-2291_MUC-clustering-CME OF-2291: Prevent ConcurrentModificationException when syncing clustered MUC occupants
OF-2291: Prevent ConcurrentModificationException when syncing clustered MUC occupants
This creates a copy of a collection over which is being operated, to prevent the collection to be modified while being iterated over.
