RFR: 8290149: java/nio/file/Files/probeContentType/Basic.java fails on Windows Server 2019/2022

[Jaikiran Pai]

On Tue, 12 Jul 2022 06:41:35 GMT, KIRIYAMA Takuya <duke at openjdk.org> wrote:

> On Windows Server 2019/2022, default content type of ".js" is set to "text/plain" in registry.
> 
> 
> C:\>reg query HKEY_CLASSES_ROOT.js /v "Content Type"
> 
> HKEY_CLASSES_ROOT.js
>     Content Type    REG_SZ    text/plain
> 
> 
> So, "text/plain" should be added for content type of ".js".
> 
> I propose to add default registry value to expected list. After fix, test passes on Windows Server 2022.
> 
> Could you review this fix, please?

I couldn't reproduce this neither on a Windows 2019 nor on a Windows 2022 system. 
However, the output of your command in the PR description does suggest that your system is configured to consider this "text/plain". Plus the documentation of `HKEY_CLASSES_ROOT` states that these values are per user configurable https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc739822(v=ws.10)

Based on that, I think this change is fine and trivial.

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

Marked as reviewed by jpai (Reviewer).

PR: https://git.openjdk.org/jdk/pull/9459