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Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.	at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)	at sun.awt.X11GraphicsEnvironment.(Unknown Source)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Unknown Source)	at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(Unknown Source)	at java.awt.Window.init(Unknown Source)	at java.awt.Window.(Unknown Source)	at java.awt.Frame.(Unknown Source)	at oracle.ewt.popup.PopupFrame.(Unknown Source)	at oracle.ewt.lwAWT.BufferedFrame.(Unknown Source)	at oracle.sysman.oio.oioc.OiocOneClickInstaller.(OiocOneClickInstaller.java:378)	at oracle.sysman.oio.oioc.OiocOneClickInstaller.main(OiocOneClickInstaller.java:2091)