[JENKINS] Lucene-Solr-4.x-MacOSX (64bit/jdk1.8.0) - Build # 1653 - Still Failing!

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

Build: http://jenkins.thetaphi.de/job/Lucene-Solr-4.x-MacOSX/1653/
Java: 64bit/jdk1.8.0 -XX:-UseCompressedOops -XX:+UseParallelGC

All tests passed

Build Log:
[...truncated 44785 lines...]
-documentation-lint:
     [echo] checking for broken html...
    [jtidy] Checking for broken html (such as invalid tags)...
   [delete] Deleting directory /Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/lucene/build/jtidy_tmp
     [echo] Checking for broken links...
     [exec] 
     [exec] Crawl/parse...
     [exec] 
     [exec] Verify...
     [echo] Checking for missing docs...
     [exec] Traceback (most recent call last):
     [exec]   File "/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/dev-tools/scripts/checkJavaDocs.py", line 371, in <module>
     [exec]     if checkPackageSummaries(sys.argv[1], level):
     [exec]   File "/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/dev-tools/scripts/checkJavaDocs.py", line 351, in checkPackageSummaries
     [exec]     if checkClassSummaries(fullPath):
     [exec]   File "/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/dev-tools/scripts/checkJavaDocs.py", line 215, in checkClassSummaries
     [exec]     missing.append((lastCaption, unEscapeURL(lastItem)))
     [exec]   File "/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/dev-tools/scripts/checkJavaDocs.py", line 303, in unEscapeURL
     [exec]     s = s.replace('%20', ' ')
     [exec] AttributeError: 'NoneType' object has no attribute 'replace'

BUILD FAILED
/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/build.xml:467: The following error occurred while executing this line:
/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/build.xml:63: The following error occurred while executing this line:
/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/lucene/build.xml:212: The following error occurred while executing this line:
/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/lucene/build.xml:247: The following error occurred while executing this line:
/Users/jenkins/workspace/Lucene-Solr-4.x-MacOSX/lucene/common-build.xml:2338: exec returned: 1

Total time: 138 minutes 59 seconds
Build step 'Invoke Ant' marked build as failure
[description-setter] Description set: Java: 64bit/jdk1.8.0 -XX:-UseCompressedOops -XX:+UseParallelGC
Archiving artifacts
Recording test results
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any