Jan 3, 2009 · AWT is a Java interface to native system GUI code present in your OS. It will not work the same on every system, although it tries. Swing is a more-or-less pure-Java GUI. It …

Dec 9, 2024 · Try modifying your application to handle AWT errors gracefully. Use GraphicsEnvironment.isHeadless () to determine the state dynamically and disable UI …

Sep 9, 2011 · AWT, Swing and SWT are UI toolkits but I would certainly not call them "frameworks". Frameworks are based upon a given UI toolkit and provide the glue to build …

Exception in thread "main" java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. at java.awt.GraphicsEnvironment.

Now I just get "Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using 'localhost:1.0' as the value of the DISPLAY variable." on Ubuntu 16.04.

export JAVA_TOOL_OPTIONS='-Djava.awt.headless=true' After that if the problem still persists, removing all packages that may interfere may be a radical solution.

Dec 26, 2012 · I heard that when we use awt or swing, while creating a FRAME, an unchecked exception may be thrown which is "Headless exception". I never got this exception. Can …

There is no performance benefit of setting java.awt.headless=true if you're not using AWT features. AWT features are loaded on-demand. As explained in the linked article, headless …

Is the java.awt included in JDK 10? Ye, the package does exist. The Java10 API docs do confirm the same as well. If yes where is and how can I make visible to Eclipse? In a modular code, all …

Jul 8, 2014 · No, AWT is doing the painting, or more to the point, it provides access to the Graphics layer for Swing to paint on. Swing, unlike JavaFX, borrows a lot from the AWT API …