Github user jvwing commented on the pull request: https://github.com/apache/nifi/pull/224#issuecomment-193512143 I ran into a NullPointerException testing GetDynamoDB with a single unprocessed item consisting of a hash key, but no range key. The NullPointerException is thrown from AbstractDynamoDBProcessor.getAttributeValue() on line 207 when it tries to use the range key AttributeValue, which is null. I copy/paste/modified one of your tests to illustrate, [308d60cf6167b209d0d222bb6a3e1cff25b1e4cd](https://github.com/jvwing/nifi/commit/308d60cf6167b209d0d222bb6a3e1cff25b1e4cd).
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