}
            });

    ListenableFuture<String> futureResult =
        whenAllComplete(futureInteger, futureBoolean).callAsync(combiner, executor);

    // Waiting on backing futures
    assertThat(futureResult.toString())
        .matches(
            "CombinedFuture@\\w+\\[status=PENDING,"
                + " info=\\[futures=\\[SettableFuture@\\w+\\[status=PENDING],"

              }
            });

    ListenableFuture<String> futureResult =
        whenAllComplete(futureInteger, futureBoolean).callAsync(combiner, executor);

    // Waiting on backing futures
    assertThat(futureResult.toString())
        .matches(
            "CombinedFuture@\\w+\\[status=PENDING,"
                + " info=\\[futures=\\[SettableFuture@\\w+\\[status=PENDING],"