Hi Ferdinando, Thanks for providing the detailed logs and configuration for the problem you are having with the Encrypted File System Repository. After evaluating the code and discussing the issue with Mark Payne, the problem seems to be with the way the Encrypted Repository attempts to read a null content claim, resulting in the exceptions you reported.
I have created an issue in Jira outlining the problem ( https://issues.apache.org/jira/browse/NIFI-8024) and I will look at implementing a solution soon. Regards, David Handermann
