[jira] [Created] (NIFI-15541) Flow version upgrade binds new process groups to incorrect parameter context

["Pierre Villard (Jira)" <ji...@apache.org>]

Pierre Villard created NIFI-15541:
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             Summary: Flow version upgrade binds new process groups to incorrect parameter context
                 Key: NIFI-15541
                 URL: https://issues.apache.org/jira/browse/NIFI-15541
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework, Flow Versioning
            Reporter: Pierre Villard
            Assignee: Pierre Villard


When upgrading a versioned flow that introduces a new child process group, the new process group is incorrectly bound to a parameter context matched by name rather than using the same parameter context as its parent.

Steps to reproduce:
 # Create a versioned flow v1 with Process Group A attached to Parameter Context P

 # Create v2 by adding a child Process Group B inside A, also attached to P

 # Import v1 twice using "do not keep existing parameter context" - this creates A1 with P, and A2 with P (1)

 # Upgrade A2 from v1 to v2

Current behavior:

The newly added Process Group B in A2 gets bound to P instead of P (1)

Expected behavior:

Process Group B should use P (1), the same parameter context as its parent A2

Root cause:

In StandardVersionedComponentSynchronizer.updateParameterContext(), when a new child process group is added during synchronization, it looks up parameter contexts by name globally rather than inheriting from the parent group.



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