[JENKINS] Lucene-Solr-4.x-Windows (64bit/jdk1.7.0_10) - Build # 2397 - Failure!

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

Build: http://jenkins.thetaphi.de/job/Lucene-Solr-4.x-Windows/2397/
Java: 64bit/jdk1.7.0_10 -XX:+UseG1GC

All tests passed

Build Log:
[...truncated 25765 lines...]
-documentation-lint:
     [echo] checking for broken html...
    [jtidy] Checking for broken html (such as invalid tags)...
   [delete] Deleting directory C:\Users\JenkinsSlave\workspace\Lucene-Solr-4.x-Windows\lucene\build\jtidy_tmp
     [echo] Checking for broken links...
     [exec] 
     [exec] Crawl/parse...
     [exec] 
     [exec] Verify...
     [exec] 
     [exec] file:///build/docs/core/org/apache/lucene/analysis/package-summary.html
     [exec]   BAD EXTERNAL LINK: http://lucene.apache.org/core/discussion.html
     [exec] 
     [exec] Broken javadocs links were found!

BUILD FAILED
C:\Users\JenkinsSlave\workspace\Lucene-Solr-4.x-Windows\build.xml:60: The following error occurred while executing this line:
C:\Users\JenkinsSlave\workspace\Lucene-Solr-4.x-Windows\lucene\build.xml:242: The following error occurred while executing this line:
C:\Users\JenkinsSlave\workspace\Lucene-Solr-4.x-Windows\lucene\common-build.xml:1960: exec returned: 1

Total time: 64 minutes 10 seconds
Build step 'Invoke Ant' marked build as failure
Archiving artifacts
Recording test results
Description set: Java: 64bit/jdk1.7.0_10 -XX:+UseG1GC
Email was triggered for: Failure
Sending email for trigger: Failure