buildbot failure in on sling-trunk

[buildbot]

The Buildbot has detected a new failure on builder sling-trunk while building . 
Full details are available at:
    https://ci.apache.org/builders/sling-trunk/builds/2197

Buildbot URL: https://ci.apache.org/

Buildslave for this Build: bb_slave2_ubuntu

Build Reason: The AnyBranchScheduler scheduler named 'on-sling-commit' 
triggered this build
Build Source Stamp: [branch sling/trunk] 1732840
Blamelist: 

BUILD FAILED: failed compile

Sincerely,
 -The Buildbot