MapViewer Runtime Failure After Upgrading BI from Release 11.1.1.6 to Release 11.1.1.7

After upgrade of current OBIEE to 11.1.1.7 from 11.1.1.6 when trying to access mapviewer URL (http://localhost:7001/mapviewer  below error occured.

"HTTP 500 Internal Server Error" 

Mapviewer was deployed into bi_server1 and related logfile were examined located at $DOMAIN_HOME/bifoundation_domain/servers/bi_server1/logs. Log files had entries like

WatchRuleType: Log
WatchRule: (SEVERITY = 'Error') AND ((MSGID = 'WL-101020') OR (MSGID = 'WL-101017') OR (MSGID = 'WL-000802') OR (MSGID = 'BEA-101020') OR (MSGID = 'BEA-101017') OR (MSGID = 'BEA-000802'))
WatchData: DATE = Dec 5, 2014 8:49:56 PM EET SERVER = bi_server1 MESSAGE = [ServletContext@1774584388[app:mapviewer module:/mapviewer path:/mapviewer spec-version:2.5 version:11.1.1]] Root cause of ServletException.
java.lang.NoClassDefFoundError: oracle/adfinternal/view/faces/taglib/html/HtmlHtmlTag
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
        at java.lang.Class.getConstructor0(Class.java:2699)
        at java.lang.Class.newInstance0(Class.java:326)
        at java.lang.Class.newInstance(Class.java:308)

As a solution Oracle  suggests to delete some files of MapViewer deployment and delete the Weblogic internal cache of the MapViewer application. 

1. Stop Managed server (bi_server1)
2. Delete the following files from MapViewer deployment MW_HOME/Oracle_BI1/bifoundation/jee/mapviewer.ear

• web.war/WEB-INF/lib/adf-faces-api.jar
• web.war/WEB-INF/lib/adf-faces-impl.jar
• web.war/WEB-INF/lib/commons-digester.jar
• web.war/WEB-INF/lib/commons-logging-1.1.jar
• web.war/WEB-INF/lib/jsf-api.jar
• web.war/WEB-INF/lib/jsf-impl.jar
• web.war/WEB-INF/lib/jsr173_1.0_api.jar
• web.war/WEB-INF/lib/mvutil.jar
• web.war/WEB-INF/lib/xdb.jar
• web.war/WEB-INF/adf-faces-config.xml
• web.war/WEB-INF/orion-web.xml

 3. Delete the directory
 MW_HOME/user_projects/domains/bifoundation_domain/servers/bi_server1/tmp/_WL_user/mapviewer_11.1.1

4. Restart the managed server

Source 
http://docs.oracle.com/cd/E28280_01/doc.1111/e14770/biee.htm#CHDJIDBD