On 1/7/2016 10:59 PM, Zap Org wrote: > i have solr5.0.0 installed in one machine with JVM specs java 1.7 32GB RAM > now from another machine i am sending query request to this machine with > specs JAVA 1.6 > so what really happening solr5.0.0 (1.7) is communicating with > solrj5.0.0(1.6)
The system with SolrJ 5.0.0 must have a newer Java version installed. It is simply not possible to run Solr or SolrJ 5.0.0 with Java 6. If you attempt to run version 4.8 or later with Java 6, you'll get an error that looks like this: Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/solr/xxx/yyy: Unsupported major.minor version 51.0 Here is some information about what the specific major.minor version number means: http://stackoverflow.com/a/11432195 Just for giggles, I attempted to compile SolrJ (which is a standalone module not dependent on the rest of Solr) in the branch_5x checkout with the build script changed to produce jars compatible with version 1.6. It would not compile when the target was set to 1.6, because the way the code is written *requires* Java 7, and has since version 4.8. Thanks, Shawn
