A big problem when runing in linux,pls..help me...

[Emily]

Hi,all!

I'm a JFC user and just made a servlet by using JFC.
Everything went smoothly when I run it on WinXP(with tomcat4.1),I saw the pie chart as what I expected.
but after
my moving the servlet into a pc based on RH-linux(with tomcat4.1），an error occured,and tomcat reminded me like this:////
root cause
java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.////
I can make sure that the versions of JFC and Jcommon I used are same~~
Who can help me solve the hazard~~
Thanks a lottttt!!!

[Karthicks]

Hi ,

This is due display error. Probabily you would have run the tomcat server in non x mode (you would have telnet the machine and started the tomcat server in non x mode).

solutions ,

1) start the server in x mode (konsole /prompt etc)
2) Or export DISPALY to the client machine from which you connect to the server. Eg export DISPLAY=karthick:0.0
3) Or set a system parameter to tomcat server vm while start up -Djava.awt.headless=true. I am not sure , i think it will affect the performance It may involve sync method call of the ui classes internally.


I hope your problem could be solved by the above said solution.

S.Karthick

[Emily]

Hi,Karthicks!Thanks a lot!
By what u mentioned above,I succeed!

[Guest]

The following code at the init() methos of the servlet also fix the problem:
System.setProperty("java.awt.headless", "true");