Bugfix
DONE:
•Removed Execpton (type mismatch)
•Removed Exception (missing default constructor)
•Replaced TreeMap with HashMap + custom method that finds the address with the lowest timestamp
•The try to get a lock functionallity is now in tryToGetLock() with improved readability
•tryToGetLock is now called every time a message for this Layer is received
•More debug text
TODO:
•Execution stops after time
•Some TODOs in source
•Check synchronization
•Testing