Thanks for spotting this. I filed https://bugs.openjdk.java.net/browse/JDK-8236624 to update the docs.

--Sean

On 12/17/19 7:53 AM, ra...@web.de wrote:
Hi Tony,

thank you for the clarification.

Btw: If I'm not mistaken, the new System properties for stateless session 
resumption are not included in the documentation 
https://docs.oracle.com/en/java/javase/13/security/java-secure-socket-extension-jsse-reference-guide.html#GUID-93DEEE16-0B70-40E5-BBE7-55C3FD432345
 (Table 8-3) so far. If they should be added there at a later time, maybe, your 
clarification for TLS 1.3 could be incorporated there?

Regards,

Ralph
On 12/16/2019 3:20 PM, Anthony Scarpino wrote:
Dear all,


in Java 13 the new System properties 
jdk.tls.client.enableSessionTicketExtension and 
jdk.tls.server.enableSessionTicketExtension were introduced. In TLS 1.2 and 
prior these properties support stateful session resumption according to RFC 
5077.

In TLS 1.3, however, there is no SessionTicketExtension and it isn't clear from 
the description [1] what impact jdk.tls.server.enableSessionTicketExtension has 
in case of a TLS 1.3 connection.

Question 1: Does a Java server perform on a TLS 1.3 connection a stateless 
resp. stateful session resumption, if
jdk.tls.server.enableSessionTicketExtension is set to true resp. false?

Yes


Question 2: Does the content of the NewSessionTicket message in TLS 1.3 depend 
on the value of jdk.tls.server.enableSessionTicketExtension?

Yes


Tony

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