This error i am getting when i am trying to deploy my application on clustered environment.

jspServlet "weblogic.servlet.WlwJSPServlet" defined in weblogic.xml could not
be loaded.
java.lang.ClassNotFoundException: weblogic.servlet.WlwJSPServlet
at weblogic.utils.classloaders.GenericClassLoader.fin dClass(GenericClassLoader.java:185)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 99)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 55)

?? Any thoughts???