SSLSessionContext Interface
A javax.net.ssl.SSLSessionContext is a grouping
of SSLSessions
associated with a single entity. For example, it could be associated
with a server or client that participates in many sessions concurrently.
The methods on this interface enable the enumeration of all sessions
in a context and allow lookup of specific sessions via their session
ids.
An SSLSessionContext may optionally be obtained
from an SSLSession by calling the SSLSession getSessionContext method.
The context may be unavailable in some environments, in which case
the getSessionContext method returns null.