I am wondering if there are any updates on the progress of the JSR proposed in
this
message? Small quote:

The Search Specification will be an API for composing and federating search queries to a
set of search providers, and aggregating returned results. The main
goal is to support search as a way of integrating enterprise
systems. Examples of use cases include a Java web application or
portal that offers combined Web, enterprise, and site search, or a front-end
Java customer support application that offers search of a variety of
back-end enterprise applications, as a way of locating all available
information on a particular customer.