make sure Java 1.7 was used to compile the JARs in binary release
make sure Java 1.7 was used to compile the JARs in binary release

git-svn-id: 308d55f399f3bd9aa0560a10e81a003040006c48@1461067 13f79535-47bb-0310-9956-ffa450edef68

apache/solr,apache/solr,apache/solr,apache/solr,apache/solr