DisplayLink Forum - View Single Post - Java programs won't start when external screen is set as main

MikoLone · 04-15-2022, 05:22 PM

I had the same problem this morning. In my app, this java code threw a null pointer exception for this line of code.

Code:

GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration().getBounds();

For some reason, when you have the main monitor set to one that is connected to the dock, getDefualtScreenDevice() returns null.

I was also using java 8.

04-15-2022, 05:22 PM	#2
MikoLone Junior Member Join Date: Apr 2022 Posts: 2	Had the same problem I had the same problem this morning. In my app, this java code threw a null pointer exception for this line of code. Code: GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration().getBounds(); For some reason, when you have the main monitor set to one that is connected to the dock, getDefualtScreenDevice() returns null. I was also using java 8.