Java- load only fonts from jre/lib/fonts

Question

Java runtime adds fonts from system to its GraphicsEnvironment. Oracle/Sun documentation on fontconfig.properties is here. These explain how to add fonts to Java.

I am looking for restricting the font loading(testing). Unloading a loaded font is not straightforward (discussed here Unregister font with GraphicsEnvironment?)

Is there a way to restrict java to load fonts listed in jre/lib folder?

Answer 1

Specify empty sun.java2d.fontpath property to prevent from loading system fonts.

  java -Dsun.java2d.fontpath= -jar YourApp