I want the support of the following cipher suites in TLS using JCA:
The clean way would be to implement your own SSLSocketFactory.
If you want to try adding I only see the way to modify the internal classes via reflection.
The relevant class is:
com.sun.net.ssl.internal.ssl.CipherSuite
It has an overloaded private static method "add" for adding cipher implementations to the supported list. May be worth a try.