[HADOOP-15283] Upgrade from findbugs 3.0.1 to spotbugs 3.1.2 in branch-2 to fix docker image build

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.10.0, 2.9.1, 2.8.4, 2.7.6
• Target Version/s: 2.10.0, 2.9.1, 2.8.4, 2.7.6
• Assignee: Akira Ajisaka
• Reporter: Xiao Chen
• Created: 02/Mar/18 21:40
• Updated: 04/Mar/18 15:08
• Resolved: 04/Mar/18 15:08

Description

Not sure about other branches, but branch-2.8 pre-commit is failing at building docker images.

See https://builds.apache.org/job/PreCommit-HDFS-Build/23274

...
Step 13/31 : RUN mkdir -p /opt/findbugs &&     curl -L -s -S          https://sourceforge.net/projects/findbugs/files/findbugs/3.0.1/findbugs-noUpdateChecks-3.0.1.tar.gz/download          -o /opt/findbugs.tar.gz &&     tar xzf /opt/findbugs.tar.gz --strip-components 1 -C /opt/findbugs
 ---> Running in 59d3581d6f6c

gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now
The command '/bin/sh -c mkdir -p /opt/findbugs &&     curl -L -s -S          https://sourceforge.net/projects/findbugs/files/findbugs/3.0.1/findbugs-noUpdateChecks-3.0.1.tar.gz/download          -o /opt/findbugs.tar.gz &&     tar xzf /opt/findbugs.tar.gz --strip-components 1 -C /opt/findbugs' returned a non-zero code: 2

Total Elapsed time:  11m 54s

ERROR: Docker failed to build image.