Borderless window

[ItsHarry]

Hello

Since Minecraft doesn't have dual monitor support, I decided to try and pass the following argument to it:
-Dorg.lwjgl.opengl.Window.undecorated=true

I know Minecraft uses LWJGL and I've worked with LWJGL in the past

For some reason, I still see a little border around Minecraft, while it's supposed to be borderless.
Here's a picture showing what I mean:


I dug into Minecraft's source code and I don't see any reason why this wouldn't work.

Any ideas how I can get this to be borderless?

Thanks

[ItsHarry]

Nevermind, I got it.

I edited the source code to include setResizable(false)