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Exception in thread “awt-eventqueue-0” java.awt.headlessexception: blog classification: exception
Exception in thread "AWT-EventQueue-0" java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:159)Solution:
Add this in the Java startup parameter
Java code
-Djava.awt.headless= true
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