failed to default sun.jnu.encoding=utf-8

SoapUI version 5.8.0

win10 on azure remote desktop

java

i want to make soapUI display thailand character.

i tried this

-Dfile.encoding=UTF-8
-Dsun.jnu.encoding=UTF-8
-Dnative.encoding=UTF-8

but system properties shows below:

in notepad++, thailand character display correctly under utf8 mode, it means my system can support thailand characters

when pasted to soapUI, it display as square

it works fine in 5.7.2 on my laptop both win10 & win11.