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Problem

Your builds fail due to Tasks for AWS encountering an AmazonS3Exception AmazonS3Exception: AWS authentication requires a valid Date or x-amz-date header:

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This is a known issue with AWS SDK for Java up to and including version 1.10.0, which had in turn been caused by the upstream dependency Joda-Time being incompatible with Java >= 1.8u60.

It has been fixed in the AWS SDK for Java 1.10.1 by upgrading the Joda-Time dependency to version 2.8.1, and Tasks for AWS 2.8.0 is the earliest release that ships with this or a later AWS SDK for Java release. Accordingly, updating Tasks for AWS to the most current release (or any other release >= 2.8.0) will address the problem.

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If you are currently unable to update Tasks for AWS to a release that includes the fixed AWS SDK for Java, you might consider downgrading Java to release 1.8u45 (see note below for caveats).

 Please note that using a non current Java Virtual Machine usually implies running a Java version with known security vulnerabilities - please consider this carefully and apply the workaround at your own risk

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and in sufficiently controlled environments only!

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