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Author

org.apache.jasper.JasperException: Unable to load class for JSP

Giuliano Di Giovanni
Greenhorn

Joined: Feb 03, 2009
Posts: 3
Hi everybody. I already had a look to the hints contained in this forum regarding the fault in subject but they didn't work.
Can you be so kind to have a look and give me a help?
In the following the specifications:



*************ERROR*******************


*exception

org.apache.jasper.JasperException: org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:156)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
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:620)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.lang.ClassNotFoundException: org.apache.jsp.index_jsp
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
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:618)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

************END ERROR*******************

************ Directory Structure ********************

SimpleStruts
|
+-- index.jsp (*)
|
+-- build.xml (*)
|
+-- WEB-INF
|
+-- web.xml (*)
|
+-- struts-config.xml (*)
|
+-- struts-bean.tld (*)
|
+-- struts-nested.tld (*)
|
+-- struts-html.tld (*)
|
+-- struts-logic.tld (*)
|
+-- struts-template.tld (*)
|
+-- app.tld (*)
|
+-- classes
| |
| +-- strutsExampleClasses
| |
| +-- ApplicationResources.properties (*)
| |
| +-- Name.java (*)
| |
| +-- NameForm.java (*)
| |
| +-- SetNameAction.java (*)
|
+-- lib
|
+-- commons-beanutils-1.8.0.jar (*)
|
+-- commons-chain-1.2.jar (*)
|
+-- commons-digester-1.8.jar (*)
|
+-- commons-logging-1.0.4.jar (*)
|
+-- commons-validator-1.3.1.jar (*)
|
+-- jsp-api.jar (*)
|
+-- oro-2.0.8.jar (*)
|
+-- servlet-api.jar (*)
|
+-- struts-core-1.3.10.jar (*)
|
+-- struts-taglib-1.3.10.jar (*)
|
+-- struts-tiles-1.3.10.jar (*)

(*) denotes a file



***********WEB.XML**********************

<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

<display-name>SimpleStruts</display-name>

<!-- Action Servlet Configuration -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>
StrutsExample.ApplicationResources</param-value>
</init-param>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>validate</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>


<!-- Action Servlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>


<!-- The Welcome File List -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>

<!-- Application Tag Library Descriptor -->
<taglib>
<taglib-uri>/WEB-INF/app.tld</taglib-uri>
<taglib-location>/WEB-INF/app.tld</taglib-location>
</taglib>

<!-- Struts Tag Library Descriptors -->
<taglib>
<taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>/WEB-INF/struts-nested.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>/WEB-INF/struts-tiles.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
</taglib>


</web-app>

************ STRUTS-CONFIG.XML **********************

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->

<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
"http://struts.apache.org/dtds/struts-config_1_3.dtd">

<struts-config>

<form-beans>
<form-bean name="nameForm"
type="StrutsExample.NameForm"/>
</form-beans>

<global-forwards>
<forward name="success" path="/index.jsp"/>
</global-forwards>

<action-mappings>

<!-- Save user registration -->
<action path="/setName"
type="StrutsExample.SetNameAction"
name="nameForm"
scope="request"
input="/index.jsp"/>
</action-mappings>

</struts-config>



************ INDEX.JSP ********************

<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/app.tld" prefix="app" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-nested.tld" prefix="nested" %>
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>

<html:html>
<head>
<title>
<bean:message key="welcome.title"/>
</title>
<html:base/>
</head>
<body>
<html:errors/>
<html:form action="/setName">
<html:hidden property="action"/>
<bean:message key="prompt.name"/>
<html:text property="name" size="16" maxlength="16"/>
<br></br>
<html:submit>
<bean:message key="button.save"/>
</html:submit>
<html:reset>
<bean:message key="button.reset"/>
</html:reset>
</html:form>
<hr></hr>
<logic:present name="name">
<font color="blue">
<bean:write name="name" property="name"/>
</font>
<hr></hr>
</logic:present>
</body>
</html:html>

Jimmy Clark
Ranch Hand

Joined: Apr 16, 2008
Posts: 2187
Which Java Web server are you using?
Giuliano Di Giovanni
Greenhorn

Joined: Feb 03, 2009
Posts: 3
Hi James, sorry I forgot to specify it.
I'm using Tomcat 6 and struts 1.3.10
I don't think the problem is in the java files. Ant works fine and the behaviour of the various Action and ActionForm is very trivial.
Thanks for your time
Regards
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: org.apache.jasper.JasperException: Unable to load class for JSP