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

[Jaikiran Pai]

On Tue, 26 Nov 2024 00:31:24 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.

Hello Aleksei, the `static` block of `InetAddress` has calls like `GetPropertyAction.privilegedGetProperty()` which too can be replaced by `System.getProperty()`.

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

PR Comment: https://git.openjdk.org/jdk/pull/22376#issuecomment-2500183521