[HBASE-20587] Replace Jackson with shaded thirdparty gson

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 2.3.0
• Component/s: dependencies
• Hadoop Flags: Incompatible change, Reviewed
• Release Note: Remove jackson dependencies from most hbase modules except hbase-rest, use shaded gson instead. The output json will be a bit different since jackson can use getter/setter, but gson will always use the fields.
• Assignee: Duo Zhang
• Reporter: Josh Elser
• Created: 15/May/18 16:34
• Updated: 24/Jun/22 17:56
• Resolved: 22/Feb/19 09:06

Description

HBASE-20582 got me looking at how we use Jackson. It appears that we moved some JSON code from hbase-server into hbase-common via HBASE-19053. But, there seems to be no good reason why this code should live there and not in hbase-http instead. Keeping Jackson off the user's classpath is a nice goal.

FYI appy, mdrob

Issue Links

• breaks: HBASE-21947 TestShell is broken after we remove the jackson dependencies
• links to: Review Board