Wouter de Vries created NIFI-7241:
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Summary: Unable to remove port from a child ProcessGroup
Key: NIFI-7241
URL: https://issues.apache.org/jira/browse/NIFI-7241
Project: Apache NiFi
Issue Type: Bug
Components: Flow Versioning
Affects Versions: 1.11.2
Reporter: Wouter de Vries
Attachments: trace.log
Given the following scenario:
* Output port 1 in process group A
* Input port 2 in process group B
* A connection between A and B
* Process group C is versioned and contains A and B
Removing the connection as well as output port 1 and then committing the
version creates a flow version that cannot be upgraded to. (Try reverting to an
older version, and back to this version). Throwing an IllegalStateException.
I believe this is caused by the order of updates in "StandardProcessGroup.java"
where child groups (line 3781) are updated prior to the connections of the
group itself (line 3986). This causes the output port to be removed before the
connection from it is removed. I haven't tested this but probably removing the
input port causes similar issues.
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