The SSLExtension class specifies incorrect values for heartbeat per RFC 6520 and post_handshake_auth per RFC 8446

ADDITIONAL SYSTEM INFORMATION :
All JDK's and OS types

A DESCRIPTION OF THE PROBLEM :
The SSLExtension class, which is part of the security libs contains the wrong value for heartbeat per RFC 6520. Its specifies 14 when it should be 15; while its set to 14, this value conflicts with use_srtp which is correctly set as 14.
References:
* https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml
* https://www.rfc-editor.org/rfc/rfc6520.html


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Check the class SSLExtension, notice the value of heartbeat duplicates use_srtp as 14 vs 15 as it should be.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
heartbeat == 15
ACTUAL -
heartbeat == 14

CUSTOMER SUBMITTED WORKAROUND :
No workaround

FREQUENCY : always