Java version 17 to be supported

[subwiz]

#98 and #94 reports regression.

[subwiz]

After the build from PR:

javac -version
javac 23.0.2

$ file ui/build/classes/java/main/org/wiztools/restclient/ui/AboutDialog.class
ui/build/classes/java/main/org/wiztools/restclient/ui/AboutDialog.class: compiled Java class data, version 61.0