Opening A Cloned EBS Instance In Enterprise Manager Hangs After Login

(Doc ID 2247157.1)

Last updated on MARCH 29, 2017

Applies to:

Oracle E-Business Suite Technology Stack - Version 12.2.5 and later
Oracle Applications DBA - Version 12.2.5 and later
Information in this document applies to any platform.

Symptoms

After clone,opening the EBS instance in Enterprise Manager does not work properly.

After enter username/password to login Enterprise Manager(:hostname.domain:7001/em),the Enterprise Manager is hung and right side Deployments filed display blank.

Please refer the following screen shot.

Contents of $EBS_DOMAIN_HOME/servers/AdminServer/logs/AdminServer-diagnostic.log file shows:

...
[2017-03-23T11:24:37.451+08:00] [AdminServer] [ERROR] [] [oracle.help.web.rich.OHWFilter] [tid: [ACTIVE].ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: weblogic] [ecid: 9fb5d6e5bfe6dd1c:58a6cc76:15af927fb22:-8000-00000000000000c1,0] [APP: em] [DSID: 0000LftCPiJEkJ1pzsd9iW1Oonpj000006] java.lang.InternalError: Can't connect to X11 window server using '' as the value of the DISPLAY variable.[[
javax.servlet.ServletException: java.lang.InternalError: Can't connect to X11 window server using '' as the value of the DISPLAY variable.
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:342)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
at oracle.sysman.emSDK.license.LicenseFilter.doFilter(LicenseFilter.java:164)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:211)
..

at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2283)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2182)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1491)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:263)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
Caused by: java.lang.InternalError: Can't connect to X11 window server using '' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65)
at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:110)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.X11GraphicsEnvironment.(X11GraphicsEnvironment.java:74)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:195)
at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:102)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:81)
at java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1182)
at java.awt.image.BufferedImage.getGraphics(BufferedImage.java:1172)
at oracle.dss.graph.pfj.Perspective.sendXMLToStreamExc(Perspective.java:12410)
at oracle.dss.graph.CommonGraph.exportToXMLWithException(CommonGraph.java:8131)
at oracle.adfinternal.view.faces.bi.renderkit.imageView.ImageViewRendererUtils.renderXML(ImageViewRendererUtils.java:572)

Cause

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