On Mon, 25 Jan 2021 22:17:56 GMT, Xue-Lei Andrew Fan <xue...@openjdk.org> wrote:

>> The TLS protocols are designed to tolerant unknown TLS extensions. However, 
>> although it is not common, there are a few TLS implementations that cannot 
>> handle unknown extensions properly. As results in unexpected 
>> interoperability issue when new extensions are introduced in JDK. The 
>> interoperability impact could be mitigated If applications can customize the 
>> extensions if needed.
>> 
>> With this update, two system properties are added to configure the default 
>> extensions in either client or server side of TLS connections.  Please note 
>> that the impact of blocking TLS extensions is complicated.  For example, a 
>> TLS connection may not be able to established if a mandatory extension is 
>> blocked.  Please don't use this feature unless you clearly understand the 
>> impact.
>> 
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8217633 
>> CSR: https://bugs.openjdk.java.net/browse/JDK-8217993
>
> Xue-Lei Andrew Fan has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   Update copyright years to 2021

Marked as reviewed by rhalade (Reviewer).

-------------

PR: https://git.openjdk.java.net/jdk/pull/1752

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