OBIEE 12c Chart Error (Charts Graphics Not Displaying) Linux Headless error

OBIEE 12c Chart Error on Linux & No Graphics 

When you create or run a chart in OBIEE and its blank ie no graphics. An error will appear in the obips log showing a headless error on linux.

This can be overcome by firstly checking if the DISPLAY variable was set ie X11 when bringing up OBIEE Services.

Run env command and check if DISPLAY Variable is set.


If display variable was set then stop.sh all FMW/OBIEE Services issue the unset DISPLAY command in linux terminal and start.sh all services.



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If the above does not work then try below.....

export JAVA_OPTIONS=-Djava.awt.headless=true

You must specify -Djava.awt.headless=true in the setDomainEnv.sh file. This has nothing to do with Unix systems as this option is available on every platform



Solution:
The solution for this problem is to add -Djava.awt.headless=true to the list of server start arguments of the managed server.  You can change it by,
Login to the Weblogic admin console.
Expand Environment and select Servers.
In the Servers table, click the name of the managed server you want to configure.
Select Configuration > Server Start.
If this is another server or some other java application, you can add this property to wherever place you can specify the JVM arguments for the start of that server or application.