[BUG] Mouse Position Not Registered By Client

[GigiaJ]

BEFORE REPORTING
Ensure RuneLite is up to date in IDE and you are using the latest version of the master branch

Describe the bug
Currently the mouse is not registering in the client with the code
System.out.println(((Applet) bot.getClient()).getMousePosition(true));
This returns null if the actual cursor is outside the client.
This would absolutely result in bans.

To Reproduce
Steps to reproduce the behavior:

1. Insert the line of code after mouse moves
2. Launch client and observe the mouse move reports and the nulls.

Expected behavior
The nulls shouldn't exist. Our actual mouse is being tracked and this is an issue. Clearly this needs to be looked into.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]

Additional context
Add any other context about the problem here.

[GigiaJ]

Things to look at currently:

• The mouse listeners and the data they are receiving
• The container info such as isShowing, we don't want isShowing to be false

[GigiaJ]

Possibly convert the actual canvas file into one we want?
Instrumentation?

[dginovker]

Tangentially related JoonasVali/NaturalMouseMotion#10