completablefuture-提供一个将bool值返回给supplysync调用的方法

如果我觉得这个问题看起来很愚蠢,那么我会在很长很长的时间里回到Java。我想用 完全未来 创建非阻塞调用。我有一个返回布尔值的方法

public boolean waitOnState(final String targetState, final long waitMs) {
        long begin = System.nanoTime()/1000000;
        synchronized (stateLock) {
            long elapsedMs = 0L;
            logger.debug(this.storeName + "-" + this.getStreamState().toString());
            while (!this.getStreamState().toString().equals(targetState)) {

                if (waitMs > elapsedMs) {
                    long remainingMs = waitMs - elapsedMs;
                    try {
                        logger.debug("Waiting on stream to be in run state in "+remainingMs);
                        stateLock.wait(remainingMs);
                    } catch (final InterruptedException e) {
                        // it is ok: just move on to the next iteration
                    }
                } else {
                    logger.debug("Cannot transit to target state");
                    return false;
                }
                elapsedMs = System.nanoTime()/1000000 - begin;
            }
            logger.debug("State is running - "+this.storeName);
            return true;
        }
    }

我把这个函数传递给completedfuture:

CompletableFuture<Boolean> resultHandle = 
                CompletableFuture.supplyAsync(this.waitOnState("RUNNING", 100000));
        resultHandle.thenAccept(result -> System.out.println(result));

但我犯了个错误 The method supplyAsync(Supplier<U>) in the type *CompletableFuture* is not applicable for the arguments (boolean)

即使我将函数的返回类型更改为boolean或integer,错误仍然存在,因此我确信我正在调用 完全未来 不正确地