I received the same error message from STM32CubeProgrammer 2.0.1 after upgrading Debian 9 "Stretch" (JRE v8) to Debian 10 "Buster" (JRE v11). I attempted to downgrade back to JRE/JFX v8:$ sudo apt install openjdk-8-jdk openjdk-8-jre openjfx=8u111-b14...