public synchronized ReentrantLock requestAccess ( AuthenticationData authenticationData ) { ReentrantLock currentLock = null ; currentLock = authenticationDataLocks . get ( authenticationData ) ; if ( currentLock == null ) { currentLock = new ReentrantLock ( ) ; authenticationDataLocks . put ( authenticationData , currentLock ) ; } if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isDebugEnabled ( ) ) { Tr . debug ( tc , "The size of the authenticationDataLocks is " , authenticationDataLocks . size ( ) ) ; } return currentLock ; }
Obtains a reentrant lock for the given authentication data .