[JENKINS] Lucene-Solr-trunk-Linux (64bit/jdk1.8.0_72) - Build # 16020 - Still Failing!

[Policeman Jenkins Server <je...@thetaphi.de>]

Build: http://jenkins.thetaphi.de/job/Lucene-Solr-trunk-Linux/16020/
Java: 64bit/jdk1.8.0_72 -XX:+UseCompressedOops -XX:+UseSerialGC

All tests passed

Build Log:
[...truncated 36079 lines...]
-check-forbidden-all:
[forbidden-apis] Reading bundled API signatures: jdk-unsafe-1.8
[forbidden-apis] Reading bundled API signatures: jdk-deprecated-1.8
[forbidden-apis] Reading bundled API signatures: commons-io-unsafe-2.4
[forbidden-apis] Reading API signatures: /home/jenkins/workspace/Lucene-Solr-trunk-Linux/lucene/tools/forbiddenApis/base.txt
[forbidden-apis] Reading API signatures: /home/jenkins/workspace/Lucene-Solr-trunk-Linux/lucene/tools/forbiddenApis/servlet-api.txt
[forbidden-apis] Reading API signatures: /home/jenkins/workspace/Lucene-Solr-trunk-Linux/lucene/tools/forbiddenApis/solr.txt
[forbidden-apis] Loading classes to check...
[forbidden-apis] Scanning classes for violations...
[forbidden-apis] Forbidden method invocation: java.lang.String#format(java.lang.String,java.lang.Object[]) [Uses default locale]
[forbidden-apis]   in org.apache.solr.cloud.OverseerTest$MockZKController (OverseerTest.java:128)
[forbidden-apis] Scanned 3180 (and 1946 related) class file(s) for forbidden API invocations (in 1.07s), 1 error(s).

BUILD FAILED
/home/jenkins/workspace/Lucene-Solr-trunk-Linux/build.xml:740: The following error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-trunk-Linux/build.xml:117: The following error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-trunk-Linux/solr/build.xml:347: The following error occurred while executing this line:
/home/jenkins/workspace/Lucene-Solr-trunk-Linux/solr/common-build.xml:504: Check for forbidden API calls failed, see log.

Total time: 63 minutes 49 seconds
Build step 'Invoke Ant' marked build as failure
Archiving artifacts
[WARNINGS] Skipping publisher since build result is FAILURE
Recording test results
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any