[JENKINS] Lucene-Solr-Tests-4.x-Java6 - Build # 2106 - Failure

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Build: https://builds.apache.org/job/Lucene-Solr-Tests-4.x-Java6/2106/

All tests passed

Build Log:
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check-licenses:
     [echo] License check under: /usr/home/hudson/hudson-slave/workspace/Lucene-Solr-Tests-4.x-Java6/solr
 [licenses] MISSING sha1 checksum file for: /usr/home/hudson/hudson-slave/workspace/Lucene-Solr-Tests-4.x-Java6/solr/core/lib/protobuf-java-2.5.0.jar
 [licenses] EXPECTED sha1 checksum file : /usr/home/hudson/hudson-slave/workspace/Lucene-Solr-Tests-4.x-Java6/solr/licenses/protobuf-java-2.5.0.jar.sha1

[...truncated 1 lines...]
BUILD FAILED
/usr/home/hudson/hudson-slave/workspace/Lucene-Solr-Tests-4.x-Java6/build.xml:428: The following error occurred while executing this line:
/usr/home/hudson/hudson-slave/workspace/Lucene-Solr-Tests-4.x-Java6/build.xml:67: The following error occurred while executing this line:
/usr/home/hudson/hudson-slave/workspace/Lucene-Solr-Tests-4.x-Java6/solr/build.xml:254: The following error occurred while executing this line:
/usr/home/hudson/hudson-slave/workspace/Lucene-Solr-Tests-4.x-Java6/lucene/tools/custom-tasks.xml:62: License check failed. Check the logs.

Total time: 74 minutes 50 seconds
Build step 'Invoke Ant' marked build as failure
Archiving artifacts
Recording test results
Email was triggered for: Failure
Sending email for trigger: Failure