RFR: 8344220: Remove calls to SecurityManager and doPrivileged in java.net.InetAddress and sun.net.util.IPAddressUtil after JEP 486 integration [v2]

[Alan Bateman]

On Tue, 26 Nov 2024 15:17:42 GMT, Aleksei Efimov <aefimov at openjdk.org> wrote:

>> This PR removes calls to and mentions of the `SecurityManager` and the `doPrivileged` from the `java.net.InetAddress` and `sun.net.util.IPAddressUtil` and related classes. 
>> 
>> Noteworthy changes:
>> - the default value (`30s`) of the `networkaddress.cache.ttl` security property responsible for successfull address lookups  kept unchanged, the mention of SM removed from the property description in the `net-properties.html` file.
>> - connect permission checks are removed from the `InetAddress`, and relevant classes, like `SocketPermission`. `SocketPermission.initEphemeralPorts` was also modified to remove `doPrivileged`.
>> - `RuntimePermission("inetAddressResolverProvider")` permission has been removed from the system-wide `InetAddressResolver` initialization code.
>> 
>> `tier1` to `tier3` tests show no relevant failures.
>
> Aleksei Efimov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Address review comments. Remove unused methods from InetAddressCachePolicy.

More code removed, good.

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

Marked as reviewed by alanb (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/22376#pullrequestreview-2462434950