RFR: 8314094: java/lang/ProcessHandle/InfoTest.java fails on Windows when run as user with Administrator privileges

[Christoph Langer]

On Mon, 28 Aug 2023 05:24:09 GMT, Arno Zeller <azeller at openjdk.org> wrote:

>> I think you might use System.getProperty("user.name"). But I am not sure about domain names of users on Windows.
>> I am also not sure why the user name is currently determined by creating a file - there might be a reason for this that is not obvious to me.
>
> It seems that ProcessHandle.info()  returns **DOMAIN/USERNAME** on Windows but System.getProperty("user.name") only the **USERNAME**.
> You can get **DOMAIN** and **USERNAME** on **Windows** by calling:
> com.sun.security.auth.module.NTSystem NTSystem = new com.sun.security.auth.module.NTSystem();
> String user = NTSystem.getName();
> String domain = NTSystem.getDomain();

Yes, I think using System.getProperty("user.name") is brittle as well. If we'd use `com.sun.security.auth.module.NTSystem`, we would introduce the dependency to another module - `jdk.security.auth`. Not sure, whether this is a good option.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15222#discussion_r1308412488