Resolution:
Symptoms:
=========
The Administrator server starts successfully but the following exception is logged:

       Caching Applications ...
       this may take a while Done Caching Applications
       java.lang.ClassNotFoundException: com.tibco.bw.administrator.BwPlugIn
           at java.lang.ClassNotFoundException.<init>(ClassNotFoundException.java:77)
           at java.net.URLClassLoader.findClass(URLClassLoader.java:385)

Other possible exceptions include:

       java.lang.ClassNotFoundException: com.tibco.administrator.jms.JMSResourceFactoryPlugIn
       java.lang.ClassNotFoundException: com.tibco.portalservices.administrator.PortalServicesResourceFactoryPlugIn
       java.lang.ClassNotFoundException: com.tibco.bwmanualwork.ResourceFactoryPlugIn
       java.lang.ClassNotFoundException: com.tibco.uddi.console.UddiResourceFactoryPlugIn

Cause:
======
Admin-plugins are not loaded properly by the Administrator, most likely due to corruption. For example, the <Tibco_Home>/bw/<version>/admin-plugins/ could have been restored from an incorrect backup.

Resolution:
=========
Reload the plugins in the Administrator server (in the  "Application Management -> All Service Instances -> TIBCO Administrator -> Plug-Ins" tab)  from known good war files.

Plugins for application components are generally found in the  <Tibco_Home>/<product>/<version>/admin-plugins/ on the machine in the domain having the newest version installed.
Example: <Tibco_Home>/bw/<version>/admin-plugins/BWAdmin.war for BusinessWorks.

Some plugins, such as bwmanualworks, jmsadmin,... are provided with the default installation of Tibco Administrator. You may have to do a temporary installation for Administration and copy the war files from the  /tibco/administrator/<version>/administrator-plugins folder.

Note: The Administrator server silently ignores attempts to reload a plugin with a lower or equal implementation version than the one already loaded. If the newest plugin is already loaded, you need to either remove it beforehand or manually increase the implementation version in the war file before uploading. (See KB : 35787 entitled, "TIBCO Business Works Application's  Processes Tab  is missing, shows error or does not display the process stats from Admin GUI.") .

Error: "java.lang.ClassNotFoundException: com.tibco.bw.administrator.BwPlugIn" during Administrator server startup

35787