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    <p>these two methods should help you out:</p> <ul> <li><a href="http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/transfer/Transfer.html#waitForCompletion()" rel="noreferrer">Transfer.waitForCompletion()</a> <li><a href="http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/transfer/Transfer.html#waitForException()" rel="noreferrer">Transfer.waitForException()</a> </ul> <p>If you detect that your transfer has failed based on a transfer progress event, you can simply call Transfer.waitForException() to be returned the exception that occurred. That exception will be an AmazonServiceException in this case, with all of the info that you need to see that the real problem was a clock skew issue.</p> <p>Alternatively, the <code>Transfer.waitForCompletion()</code> method will unwrap the original exception from an ExecutionException and directly throw the original exception, just as if it'd all been happening on one thread. This might be a more convenient approach if you want to use a catch blocks to catch different types of errors cleanly and elegantly. </p> <p>I disagree that the "catch Exception" block is "brutally broad". The point of that code is to catch any error that happens, mark the transfer as failed and rethrow the error so that the application code can know about it. If it were less broad, then <b>that's</b> exactly the case where exceptions could sneak through and transfer progress wouldn't be updated correctly and would be out of sync with reality.</p> <p>Give those two methods and shot and let us know if that helps!</p>
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    1. POAWS S3 Java SDK: detect time/clock skew programmatically?
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    1. USJason Fulghum
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    1. COHey Jason - thank you for taking the time to respond here, I appreciate it. Indeed, it looks like waitForException is the best choice for my scenario. Originally I had skipped these methods since they are blocking and I could not tell if/how to get incremental progress callbacks (and the documentation at [1] steered me towards a looping Thread.sleep() solution). But using your guidance above and Yosuke's mention of ProgressListener on PutObjectRequest, I think that will deliver both #1 incremental progress and #2 the level of error detail I need.
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      1. USMike Repass
    2. CO[1] - http://docs.aws.amazon.com/AWSAndroidSDK/latest/javadoc/com/amazonaws/services/s3/transfer/TransferManager.html
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    3. COJust a thought: it might make sense to update the TransferManager class docs linked above to use ProgressListener and waitForException instead of the manual Thread.sleep() approach.
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