After Providing Credentials, Enterprise Manager 11g FMW Console Hangs While Showing Loading Animation With java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment

(Doc ID 1923284.1)

Last updated on OCTOBER 04, 2016

Applies to:

Oracle Applications Technology Stack - Version 12.2 to 12.2 [Release 12.2]
Information in this document applies to any platform.


After providing the credentials for weblogic user to start the Oracle Enterprise Manager 11g FMW console hosted by the WLS Admin Server, it does not proceed to the pages, but hangs indefinite while showing the Loading animation:




Steps to confirm the issue addressed in this document:

1. Review the end of the AdminServer.log located in $EBS_DOMAIN_HOME/servers/AdminServer/logs and confirm an indicent is created.

   <Creating diagnostic image in [EBS_DOMAIN_HOME]/servers/AdminServer/adr/diag/ofm/EBS_domain_[SID]/AdminServer/incident/incdir_[X] with a lockout minute period of 1.>

2. Review the readme.txt in the indicent directory and verify this reports stack trace similar to following:

   DATE : [Timestamp]
   SERVER : AdminServer
   MESSAGE : [ServletContext@661847710[app:em module:/em path:/em spec-version:2.5]] Root cause of ServletException.
   java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(
        at java.awt.GraphicsEnvironment.createGE(
        at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(
        at java.awt.image.BufferedImage.createGraphics(
        at java.awt.image.BufferedImage.getGraphics(
        at oracle.dss.graph.pfj.Perspective.sendXMLToStreamExc(
        at oracle.dss.graph.CommonGraph.exportToXMLWithException(




The problem may be observed after:


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