No X11 DISPLAY variable was set

[Unix'EM]

I have some java packages, which i use to run in j2ee and apache when on windows. I tried to use this software on my linux box and i got this weird error :

java.awt.HeadlessException:No X11 DISPLAY variable was set, but this program performed an operation which requires it.

What is wrong? How do i set display variable? Any help?

[Calvin K]

If you are on the main windows you could try this :

export DISPLAY=:0.0

and if you are using csh or tcsh try this :

setenv DISPLAY :0.0

Hope this helps!

[MrChris-]

You can try this too. Try to start your server with the following command :

-Djava.awt.headless=true

[Solomon]

Try this too, If you are on a shell like ksh, bash use this :

export DISPLAY=:0

and if you are on any shell based on c like chs, tcsh use this :

setenv DISPLAY :0