java.lang.InternalError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable.

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    • java.lang.InternalError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable. at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method) at sun.awt.X11GraphicsEnvironment.clinit(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.init(Unknown Source) at java.awt.Frame.init(Unknown Source) at oracle.ewt.popup.PopupFrame.init(Unknown Source) at oracle.ewt.lwAWT.BufferedFrame.init(Unknown Source) at oracle.sysman.oio.oioc.OiocOneClickInstaller.init(OiocOneClickInstaller.java:378) at oracle.sysman.oio.oioc.OiocOneClickInstaller.main(OiocOneClickInstaller.java:2091)

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