[LUCENE-9188] Add jacoco code coverage support to gradle build

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.0
• Component/s: general/build
• Lucene Fields: New
• Assignee: Uwe Schindler
• Reporter: Robert Muir
• Created: 28/Jan/20 16:00
• Updated: 28/Aug/22 15:57
• Resolved: 02/May/21 14:34

Description

Seems to be missing. I looked into it a little, all the documented ways of using the jacoco plugin seem to involve black magic if you are using "java" plugin, but we are using "javaLibrary", so I wasn't able to hold it right.

This one should work very well, it has low overhead and should work fine running tests in parallel (since it supports merging of coverage data files: that's how it works in the ant build)

Issue Links

• relates to: LUCENE-9433 Remove Ant support from trunk
• links to: GitHub Pull Request #119