question: @ Override public String toString ( ) { final StringBuilder sb = new StringBuilder ( ) ; sb . append ( "( requestID = " ) ; sb . append ( getRequestID ( ) ) ; sb . append ( " timestamp = " ) ; sb . append ( timestamp ) ; sb . append ( " request = " ) ; sb . append ( getRequest ( ) ) ; sb . append ( " )" ) ; return sb . toString ( ) ; }
target:  Returns a string representation of this promise's state.