B4J Question File.DirApp and RPI permissions


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I debug my Non-UI app with RPI 3 Model B+. The app worked on Windows.
On Windows I have settings.json file on File.DirApp.
When I launch the app with B4J-bridje on RPI I get "java.io.FileNotFoundException: /home/pi/tempjars/settings.json (No such file or directory)"
Now I want to put the file settings.json that I took from Win PC on /home/pi/tempjars using RPI file explorer.
I get permission denied message from RPI.
Also I can't change permissions for the folder.
The question is how to copy or open file in /home/pi/tempjars?