Summary of submitter's issue:

In a TLS session resumption scenario, the connection fails in following scenario if using JDK 7u/6u

Server started and configured to use TLSv1 only
Client started and sends ClientHello with TLSv1.2 request
Server responds with ServerHello using TLSv1
Connection succeeds and proceeds using TLSv1
Clients sleeps
Server restarted to use TLSv1.2 only.
Client attempts a session resumption
ClientHello contains TLSv1 protocol version request.
Server now rejects this request:

Exception in thread "main" javax.net.ssl.SSLHandshakeException: Client requested protocol TLSv1 not enabled or not supported
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1897)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:300)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:290)
    at sun.security.ssl.ServerHandshaker.clientHello(ServerHandshaker.java:506)
    at sun.security.ssl.ServerHandshaker.processMessage(ServerHandshaker.java:222)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1009)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:930)