UTF-8 characters not supported when printing to System.out or System.err

[ChrystianKacki]

When I use println() methods of System.out or System.err with some UTF-8 characters like ł ś ę ó it prints question mark ? characters/blocks.
I am using IntelliJ IDEA with built-in Maven. In my IDE, in the similar case org.codehaus.mojo.exec-maven-plugin works perfectly.
I need to solve this please.
Could this be an issue of Apache Commons Exec used by the javafx-maven-plugin ?