[KAFKA-5887] Replace findBugs with spotBugs for Java 9+ support

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1.0
• Component/s: build
• Assignee: Ismael Juma
• Reporter: Ismael Juma
• Created: 13/Sep/17 17:44
• Updated: 10/Sep/18 20:16
• Resolved: 10/Sep/18 20:14

Description

findBugs doesn't support Java 9 and it seems to be abandonware at this point:

https://github.com/findbugsproject/findbugs/issues/105
https://github.com/gradle/gradle/issues/720

It has been forked, but the fork requires Java 8:

https://github.com/spotbugs/spotbugs
https://github.com/spotbugs/spotbugs/blob/master/docs/migration.rst#findbugs-gradle-plugin

We should migrate once we move to Java 8 if spotbugs is still being actively developed and findBugs continues to be dead.

Additional tasks:

1. Remove the code that disables the Gradle plugin for findBugs (or spotbugs) when building with Java 9.

2. Enable the findBugs plugin in Jenkins for the relevant builds:
https://builds.apache.org/job/kafka-trunk-jdk10/
https://builds.apache.org/job/kafka-pr-jdk10-scala2.12/

Issue Links

• blocks: KAFKA-7390 Enable the find-sec-bugs spotBugs plugin for Gradle
• is blocked by: KAFKA-4501 Support Java 9
• links to: GitHub Pull Request #5625