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When trying to run a JavaFX app from Raspberry Pi B+ device running Raspbian the UI does not show up unlike when running from a PC.

The command invoked was: 

java -jar app.jar

enter image description here

What could be the problem that the UI does not show up?

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2 Answers 2

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The solution is to run with this command:

sudo java -Djavafx.platform=eglfb -cp /opt/jdk1.8.0_111/jre/lib/jfxswt.jar:app.jar com.app.MainApp

After doing something similar to this:

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I guess the user, who is executing the program, has no reading access on the css files. According to that the GUI can't be loaded.

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