Returns a new CompletionStage that, when this and the other
given stage both complete normally, is executed using the
supplied executor, with the two results as arguments to the
supplied function.
See the {@link CompletionStage} documentation for rules
covering exceptional completion.
@param other the other CompletionStage
@param fn the function to use to compute the value of the
returned CompletionStage
@param executor the executor to use for asynchronous execution
@param (U) the type of the other CompletionStage's result
@param (V) the function's return type
@return the new CompletionStage
Returns a new CompletionStage that, when this and the other given stage both complete normally, is executed using the supplied executor, with the two results as arguments to the supplied function.
See the {@link CompletionStage} documentation for rules covering exceptional completion.
@param other the other CompletionStage @param fn the function to use to compute the value of the returned CompletionStage @param executor the executor to use for asynchronous execution @param (U) the type of the other CompletionStage's result @param (V) the function's return type @return the new CompletionStage