On Wed, 15 May 2024 04:20:09 GMT, Jaikiran Pai <j...@openjdk.org> wrote:

> Can I please get a review of this change which proposes to deprecate for 
> removal 3 methods on `java.net.MulticastSocket`? This addresses 
> https://bugs.openjdk.org/browse/JDK-8332181.
> 
> As noted in that issue these methods have been deprecated since Java 1.2 and 
> 1.4 days. They currently have replacement methods (noted in their javadoc) 
> which have been in use for several releases. This commit updates these 
> deprecated methods to deprecated for removal, to allow for their removal in a 
> future release.
> 
> No new tests have been added and existing tests in tier1, tier2 and tier3 
> continue to pass.

Hello Robert,

> Part of what makes Java so great is that you can take a Java 1 program and 
> run it under Java 22? with no modifications?
> 
> What does it cost to keep these methods around?

In this case, we do not want the applications to be using these methods. These 
methods accept a `ttl` value as `byte`. As noted in the javadoc of `setTTL()` 
method:

>The ttl is an unsigned 8-bit quantity, and so must be in the range {@code 0 <= 
>ttl <= 0xFF }

The `byte` type doesn't allow for these values to be accomodated. That's why 
those methods were deprecated very long back in favour of the ones noted in 
their javadoc.

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PR Comment: https://git.openjdk.org/jdk/pull/19242#issuecomment-2111577091

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