tree 22e43f0e0afe6e02c78a0e047c0e5f8d3bcf7846
parent 6cfa54086b622906969c3f57b0c429d4e27d0eb8
author Sergiy Matusevych <motus@apache.org> 1590112718 -0700
committer Dongjoon Hyun <dongjoon@apache.org> 1590162708 -0700

[REEF-2062] Migrate from FindBugs to SpotBugs

FindBugs is not supported anymore, so we're migrating to the latest version of SpotBugs.

Summary of changes:
* Update Maven pom.xml files to reference to the latest verison of SpotBugs
* Rename teh related config files and intermediate files and make sure the SpotBugs report is correct
* No changes in code were required.

JIRA: [REEF-2062](https://issues.apache.org/jira/projects/REEF/issues/REEF-2062)