Qasim Mansoor [https://community.jboss.org/people/qasimmansoor] created the discussion "Help: java.lang.ClassNotFoundException Error." To view the discussion, visit: https://community.jboss.org/message/742243#742243 -------------------------------------------------------------- Dear All, I am developing a smiple web application with one servlet & one jsp page. I am getting +java.lang.ClassNotFoundException+ error. Any Ideas how to fix this? Following is the error: *Error Message:* HTTP Status 500 - type Exception report *message* description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: java.lang.ClassNotFoundException: org.apache.jsp.index_jsp org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:151) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) *root cause* java.lang.ClassNotFoundException: org.apache.jsp.index_jsp java.net.URLClassLoader$1.run(URLClassLoader.java:202) java.security.AccessController.doPrivileged(Native Method) java.net.URLClassLoader.findClass(URLClassLoader.java:190) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:135) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:67) org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:262) org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:145) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) *In JBOSS Console:* 11:21:17,643 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception java.lang.ClassNotFoundException: org.apache.jsp.index_jsp at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:135) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:67) at org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:262) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:145) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:662) Thanks in Advance. Br, ./Qasim -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/742243#742243] Start a new discussion in Beginner's Corner at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]