Created with Copy to Gist

gist.java

public synchronized void printText(String text) throws PrintingException {
    final CompletableFuture<SuccessResult> result = new CompletableFuture();

    PrintingListener printingListener = new PrintingListener() {
        @Override
        public void onSuccess(SuccessResult successResult) {
            result.complete(successResult);
        }

        @Override
        public void onFailure(FailureResult failureResult) {
            result.completeExceptionally(new PrintingException(PrintTask.RESULT_FAILURE));
        }

        @Override
        public void onTimeout(TimeoutResult timeoutResult) {
            result.completeExceptionally(new PrintingException(PrintTask.RESULT_TIMEOUT));
        }
    };

    printerApi.startPrinting(text, printingListener);

    try {
        result.join();
    } catch (CompletionException ex) {
        throw (PrintingException) ex.getCause();
    }
}