[JENKINS] Lucene-Solr-SmokeRelease-6.x - Build # 136 - Failure

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Build: https://builds.apache.org/job/Lucene-Solr-SmokeRelease-6.x/136/

No tests ran.

Build Log:
[...truncated 10825 lines...]
    [javac] Compiling 955 source files to /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-6.x/solr/build/solr-core/classes/java
    [javac] /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-6.x/solr/core/src/java/org/apache/solr/update/TransactionLog.java:174: error: variable o might not have been initialized
    [javac]           return;
    [javac]           ^
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 1 error

BUILD FAILED
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-6.x/build.xml:543: The following error occurred while executing this line:
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-6.x/solr/build.xml:520: The following error occurred while executing this line:
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-6.x/solr/common-build.xml:398: The following error occurred while executing this line:
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-6.x/lucene/common-build.xml:501: The following error occurred while executing this line:
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-6.x/lucene/common-build.xml:1955: Compile failed; see the compiler error output for details.

Total time: 5 minutes 15 seconds
Build step 'Invoke Ant' marked build as failure
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any