[Squirrel-sql-users] squirrlesql / Error: Failed to open Wayland display, fallback to X11 / 2

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squirrlesql / Error: Failed to open Wayland display, fallback to X11 / 2
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Hello,

Running squirrlesql on debian with the plasma desktop.
This fails to bring up the java swing interface and instead errors and 
opens a webpage with the squirrel user interface.  What causes this error 
and how is it resolved so the Java GUI runs?

export XDG_SESSION_TYPE=wayland
java -jar h2-2.3.232.jar 
Error: Failed to open Wayland display, fallback to X11. 
WAYLAND_DISPLAY='wayland-0' DISPLAY=':1'

Thank you.