java.lang.InternalError: Can't connect to X11 window server using DISPLAY variable (Doc ID 567004.1)

Last updated on JUNE 07, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 to 11.2.0.4 [Release 9.2 to 11.2]
Information in this document applies to any platform.
Checked for relevance on 19-Aug-2010, by the author


Symptoms

When one of the Oracle graphic user interface (GUI) tools gives the error:

Exception in thread "main" java.lang.InternalError: Can't connect to X11 window
server using '<hostname>:0.0' as the value of the DISPLAY variable.

There can be a number of potential causes. The purpose of this NOTE is to categorize and list those potential causes.

Cause

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