[NIFI-9955] Upgrade ZooKeeper 3.4.14 to 3.5.9

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.17.0, 1.16.1
• Component/s: Extensions
• Labels: dependency-upgrade licence
• Assignee: David Handermann
• Reporter: David Handermann
• Created: 23/Apr/22 22:06
• Updated: 27/Apr/22 18:40
• Resolved: 24/Apr/22 13:49

Description

Multiple extension components have a dependency on ZooKeeper 3.4.14, which includes a transitive dependency on SpotBugs. The SpotBugs library is licensed under LGPL 2.1, which is not compatible with ASL 2:

https://www.apache.org/legal/resolved.html#category-x

NiFi Framework components already depend on ZooKeeper 3.5.9, so upgrading references to 3.4.14 aligns with current supported versions. Upgrading to a more recent version of ZooKeeper can be addressed in a separate issue.

Issue Links

• links to: GitHub Pull Request #5995