public static < K > void validateConfiguredKeyType ( Class < K > keyType , K key ) throws ClassCastException { if ( Object . class != keyType ) { // means that type checks is required if ( ! keyType . isAssignableFrom ( key . getClass ( ) ) ) { throw new ClassCastException ( "Key '" + key + "' is not assignable to " + keyType ) ; } } }
Validates the key with key type .