Can not startup Continuum 1.1-beta-1

[L. J.]

Get below exception during startup

Exception in thread "main" java.lang.UnsupportedClassVersionError:
org/apache/maven/continuum/xmlrpc/server/ContinuumXmlRpcServlet (Unsupported
major.minor version 49.0)

Is anyone having the same problem?

Thanks.

LJ