Best way to detect whether code is running in an application server java

Question

For a J2EE bean I am reusing code that was developed for a java swing application. JOptionPane.showMessageDialog() is unfortunately commonly used. Most occurenc

Answer 1

Make sure the server is started with

java -Djava.awt.headless=true

Most servers should be started that way by default. Then you can check:

boolean headless_check = GraphicsEnvironment.isHeadless();

More details on headless available here: