Unsupported major.minor version 51.0 when deploying solr 4.7.2

[Danesh Kuruppu]

Hi all,

I am getting following error when I try to deploy solr.war.

java.lang.UnsupportedClassVersionError:
org/apache/solr/servlet/SolrDispatchFilter : Unsupported major.minor
version 51.0 (unable to load class
org.apache.solr.servlet.SolrDispatchFilter).

Server Java Version: 1.6.0_45
Solr Version: solr-4.7.2

I found that above error occurs because solr is looking for java 7 runtime.
solr-4.7.2 suppose to be run at java 6.

What would be the cause for this error?

Thanks
Danesh