2621159 - Tomcat not getting started after update

•  Unable to Start tomcat after applying update on SAP BusinessObjects Business Intelligence Platform 
•  The stderr log file gives below error meassages:

  Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/catalina/startup/Bootstrap
  Caused by: java.lang.ClassNotFoundException: org.apache.catalina.startup.Bootstrap at java.net.URLClassLoader.findClass(URLClassLoader.java:443)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:490) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:380) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:266) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:465)

  After running version.bat command from tomcat/bin got below error: Error occurred during initialization of VM java/lang/NoClassDefFoundError: java/lang/Object
  [Last 4000 events in the event buffer] <thread> <time> <id> <description> 4180 0.01 0x00000001 Creating red and yellow zone [0x0000000000ed0000,0x0000000000ed4000]
  Aborting ...

• SAP BusinessObjects Business Intelligence Platform 4.2 .
• Windows Operating system .
• Clustered environment.

 java.lang.NoClassDefFoundError, java.lang.ClassLoader.loadClass(ClassLoader.java:423), org.apache.catalina.startup.Bootstrap.main,  java.lang.ClassNotFoundException, Error occurred during initialization of VM, tomcat stopped , KBA , BI-BIP-INS , Installation, Updates, Upgrade, Patching , BI-BIP-DEP , Webapp Deployment, Networking, Vulnerabilities, Webservices , Problem