I migrated an existing javafx application from java 8 to java 11. I verified that all files were encoded and saved with UTF-8. My system is windows 10 with java 11.0.5. I can't see the euro symbol in the tables, nor the accented characters inside the dialog boxes. I also noticed that the font icons are not displayed either.
I loaded this module
--module-path
"D:\JAVA\HomeManagement\lib\jar"
--add-modules
javafx.controls,javafx.fxml,javafx.graphics,javafx.base,javafx.media,javafx.swing,javafx.web,javafx.swt
--add-exports=javafx.graphics/com.sun.javafx.css=javafx.controls
--add-opens=javafx.graphics/com.sun.javafx.css=javafx.controls