RFR: 8298381: Improve handling of session tickets for multiple SSLContexts [v6]

[Volker Simonis]

On Sat, 7 Jan 2023 08:21:38 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> Volker Simonis has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Updated copyright year to 2023
>
> src/java.base/share/classes/sun/security/ssl/SSLSessionContextImpl.java line 209:
> 
>> 207:     // Package-private, used only from SessionTicketExtension.KeyState::getCurrentKey.
>> 208:     SessionTicketExtension.StatelessKey getKey(HandshakeContext hc) {
>> 209:         SessionTicketExtension.StatelessKey ssk = keyHashMap.get(currentKeyID);
> 
> is it safe to assume that the "currentKeyID" initialized/updated before on a different thread can be correctly read here?

Yes, because `currentKeyID` is updated in a synchronized section *after* the corresponding key was added to `keyHashMap`.

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PR: https://git.openjdk.org/jdk/pull/11590