Bug: Files UWP Prioritizes Content Type Over User-Set Default App for Opening Files (e.g., .jar Files)

[CommandPrompt-Wang]

Description

This is an issue related to file type association priority and content sniffing in Files UWP.

1. The user has set a default application for the .jar file type (e.g., Java(TM) Platform SE binary).
2. When double-clicking a .jar file in Files UWP, the app ignores the user's default program setting and incorrectly attempts to open it using the built-in "compressed folder" functionality.
3. Expected behavior: Double-clicking the file should execute it using the user-set default application (Java).
   Only If you restart Files Totally (not close and reopen the window) can resolve this issue, quite confusing.

Steps To Reproduce

1. In Settings > Apps > Default apps, set the default app for .jar files to Java(TM) Platform SE binary.
2. Locate a .jar file in Files UWP (e.g., hmcl.jar).
3. Double-click the file.
4. Actual Result: The file is expanded as if it were a folder inside Files UWP.
5. Expected Result: The file should be executed in the background using the Java runtime.

output_small_x264.mp4

Files Version

3.9.1.0

Windows Version

10.0.26100.4652 WorkStation

User ID

No response

Log File

I think this won't help.

debug.log

[yaira2]

Thank you for the report, we're currently tracking this and working to address this issue in #17394.