Skip to main content

Struts Exceptions during development

javax.servlet.ServletException: Wrapper cannot find servlet class org.apache.struts.action.ActionServlet or a class it depends on
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Unknown Source)

root cause
java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1360)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Unknown Source)

To avoid these type of exceptions/erros place all the struts related jar files in the lib folder of your web application.

Comments

Popular posts from this blog

Design Patterns using Java

According to Gang of Four(GOF) any software is classified in to one of the three categories. I read so many books about design patterns which provide a lot of information about Design Patterns in a language neutral way or related to a particular programming language. I am trying to complement the great books by providing the precise and concise information that is required in the day to day programming of a Java Developer. Any software can be classified into one of the three categories -Framework, Toolkit, Application. Framework - Framework defines a set of steps to create an application. Framework provides design reuse. Toolkit - Toolkit provides some utility functions to an existing application. Toolkit provides code reuse. Application - Application is some thing that is specific to the project, and is not useful outside the context of the current application. Gang of Four divided the Design Patterns in to 3 types based on their usage. There are 3 types of Gang of Fo