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via Oracle Community by 843797, 1 year ago
This exception has no message.
via GitHub by tmiddlet2666
, 1 year ago
via Google Groups by deeztech, 2 years ago
This exception has no message.
via Oracle Community by 843807, 1 year ago
via Oracle Community by 843835, 1 year ago
java.awt.HeadlessException: 	at java.awt.GraphicsEnvironment.checkHeadless(Unknown Source)	at java.awt.Window.(Unknown Source)	at java.awt.Frame.(Unknown Source)	at HeadlessBasics.main(