TEC601075: Could not initialize class sun.awt.X11GraphicsEnvironment error during APM 9.5 install

Document created by CA Employee on May 26, 2016Last modified by SamCreek on May 26, 2016
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Document ID:  TEC601075
Last Modified Date:  10/23/2013
Author: CA

  • Products
    • CA Application Performance Management
  • Releases
    • CA Application Performance Management:Release:CA APM 9.5
  • Components





Red Hat Linux 2.6 Fresh install of 9.5 MOM 64bit, 24 GIG Memory

When running installer in console mode, we see an error below and are unable to complete the install:

Status: FATAL ERROR Additional Notes: FATAL ERROR - The Installer has failed due to an Unhandled Exception java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment.


The DISPLAY variable is used in Linux based environments for opening additional windows, usually for graphics. In non-graphics terminals, setting the DISPLAY variable will give rise to an exception, since the terminal is not meant to support graphics. For that reason, in non-graphics terminals, you need to unset the DISPLAY variable. The X11R6 libraries are for graphics based environments and are NOT required during console mode installation. Unsetting the DISPLAY variable usually helps gets past this error to proceed with install.



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