No X11 DISPLAY variable was set, but this program performed an operation which requires it.
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:159)
at java.awt.Window.<init>(Window.java:317)
at java.awt.Frame.<init>(Frame.java:419)
at java.awt.Frame.<init>(Frame.java:384)
at javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1666)
at javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1743)
at javax.swing.JWindow.<init>(JWindow.java:156)
at javax.swing.JWindow.<init>(JWindow.java:108)
While i was trying to run java application (gui based) from linux and i get above mentioned error. Any help is appreciated