Robocode Menubar is blackbox

[Jonghwa Park]

The first menu bar of the robocode appears in black like attach image. If I mouse over, I can see the original menu properly.
I tested the Java version on both openjdk17 and oracle jdk17 on windows parallels, but it's the same.

[Flemming N. Larsen]

What version of Robocode are you using? In the recent version (1.9.4.8), I did some fixing regarding graphics issues.
What was the last version of Robocode, where you don't see this issue?
It is typically an issue that happens on Windows with NVidea graphics card (I have such a system).

[Jonghwa Park]

Thanks your reply.
I have tested it in the latest version 1.9.4.9.
There was no problem when I tested it on another Windows computer.
I'll test it again in the version you mentioned.

[Flemming N. Larsen]

Thanks. Please let me know if it works on version 1.9.4.8 or 1.9.4.7 or not. 👍
It might have been introduced with the new version 1.9.4.9.

[Flemming N. Larsen]

I have created a new alpha version for the next version of Robocode, where I updated all the script files for starting Robocode:
https://robocode.sourceforge.io/files/robocode-1.9.4.10-setup.jar

Read the robocode.bat into a text editor / IDE and have a look at the various settings.
E.g. you can change this line:

set J2D_D3D=true

..into:

set J2D_D3D=false

And you just uncomment this line, if you are running with Java older than version 12:

set _JAVA_OPTIONS="-Djava.security.manager=allow"