Unable to load tag handler class "com.opensymphony.webwork.views.jsp.PropertyTag

[monika se]

Please help me.

My stack trace on running helloworld.jsp is:

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: /helloworld.jsp(10,0) Unable to load tag handler class "com.opensymphony.webwork.views.jsp.PropertyTag" for tag "ww:property"
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:198)
org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1198)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1422)
org.apache.jasper.compiler.Parser.parse(Parser.java:130)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:255)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:103)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:185)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:347)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:326)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.32 logs.

Apache Tomcat/6.0.32

when i refresh this browser, i gets stack trace as:
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: org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:161)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:338)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause

org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:630)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:149)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:338)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause

java.lang.ClassNotFoundException: org.apache.jsp.helloworld_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:134)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:149)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:338)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.32 logs.

Apache Tomcat/6.0.32

[monika se]

I saw and enquired , this class file is inside that lib/webwork jar. still dont know why it is not getting loaded.

Also I am using IDEA. If i refresh my browser, i get helloworld_jsp not found .. class not found error..

Please suggest me what went wrong?? what all files should i check.

[Eswar Nec]

Post your code here.
The ranchers easy to understand your problems.

[monika se]

MY ALL FILES ARE GIVEN BELOW.
I AM TRYING WEBWORK HELLO WORLD PROGRAM DEALING WITH INPUTS.
web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">


<servlet>
<servlet-name>webwork</servlet-name>
<servlet-class>com.opensymphony.webwork.dispatcher.ServletDispatcher</servlet-class>

</servlet>
<servlet>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>fork</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>3</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>webwork</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<jsp-config>
<taglib>
<taglib-uri>
webwork
</taglib-uri>
<taglib-location>
web/lib/webwork2/webwork-2.2.6.jar
</taglib-location>
</taglib>
</jsp-config>
</web-app>



xwork.xml

<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN" "http://www.opensymphony.com/xwork/xwork-1.1.1.dtd">


<xwork>
<include file="webwork-default.xml"/>
<package name="default" extends="webwork-default">
<default-interceptor-ref name="completeStack"/>

<action name="helloWorld" class="HelloWorld">
<result name="success">/WEB-INF/helloworld.jsp</result>
<result name="input">/WEB-INF/name.jsp</result>
</action>
</package>
</xwork>

HelloWorld.java

import com.opensymphony.xwork.Action;

public class HelloWorld implements Action {
private String message;
private String name;

public String execute() {

message = "Hello, " + name + "!\n";
message += "The time is:\n";
message += System.currentTimeMillis();
return SUCCESS;
}

public String getMessage() {
return message;
}

public void setName(String name) {
this.name = name;
}

public String getName() {
return this.name;
}
}

helloworld.jsp

<%@ taglib prefix="ww" uri="/webwork" %>


<html>
<head>
<title>Hello Page</title>
</head>
<body>
The message generated by my first action is:
<ww:property value="message"/>
</body>
</html>

name.jsp

<%--
Created by IntelliJ IDEA.
User: MBurnwal
Date: Mar 31, 2011
Time: 12:42:29 PM
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Enter your name</title>
</head>
<body>
Please enter your name:
<form action="helloWorld.action">
<label>
<input type="text" name="name"/>
</label>
<input type="submit"/>
</form>
</body>
</html>