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

[Arno Zeller]

On Fri, 25 Aug 2023 07:47:19 GMT, Arno Zeller <azeller at openjdk.org> wrote:

>> test/jdk/java/lang/ProcessHandle/InfoTest.java line 304:
>> 
>>> 302:                     if (Platform.isWindows() && "BUILTIN\\Administrators".equals(whoami)) {
>>> 303:                         System.out.println("Test seems to be run as Administrator. " +
>>> 304:                                 "Check for user correctness is not possible.");
>> 
>> Is there an alternative way to determine the expected username? 
>> Perhaps by running a windows command or extracting it from the environment (System.getEnv("XX"))?
>
> 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();

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PR Review Comment: https://git.openjdk.org/jdk/pull/15222#discussion_r1306920852