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Spectrum WebApp not loading with message Request processing failed. Please refer the tomcat log for more details


Article ID: 200041


Updated On:


CA Spectrum CA eHealth


Spectrum WebApp not loading and WebTomcat is running.

Trying to connect to the Webapp configuration page using the Webapp connector port returns HTTP Status 404 - Not Found:




An incomplete Webswing installation is preventing the WebApp from loading in the browser. 

NOTE:    On RHEL package xorg-x11-server-Xvfb-1.10.4-6.el6.x86_64 is a pre-requisite for using WebApp.   If this package does not exist the spectrum folder will not be created from the spectrum.war file.



Release : 10.4.x

Component : Spectrum Core / SpectroSERVER


If the SPECROOT/webtomcat/webswing folder DOES NOT exist:

1.  You can copy it from another instance of OneClick running the same version or uninstall\resintall OneClick.  You can also extract if this exists which will create the SPECROOT/webtomcat/webswing folder.

2.  Then copy the SPECROOT/webtomcat/webswing/spectrum.war to the webtomcat/webapps folder.

3. Start WebTomcat ($SPECROOT/webtomcat/bin/

4. The spectrum.war file will create a new spectrum folder and fully populate it.

If the SPECROOT/webtomcat/webswing folder exists:

1.  cd $SPECROOT/webtomcat/webapps

2.  Rename the spectrum folder

3.  $SPECROOT/webtomcat/bin/

The spectrum.war file will create a new spectrum folder and fully populate it.

Additional Information

OneClick WebApp User Guide