Created by Anonymous, last modified by Unknown User (elifarley) on Apr 12, 2016 Problem Jenkins got java.awt.headless problem I installed Jenkins in Ubuntu linux and run Jenkins in the tomcat6. I open any Jenkins page which is showing a trend chart. I get the following error on the page: Graphics N/A Unable to access X. You need to run the web container in the headless mode. Add -Djava.awt.headles