Hi:
I'm trying to create a CustomClassLoader that I could use as my Web
App's classloader.
But I've been unsuccessful so far.
The problem:
==========================================================
When I create a JSP with the content :
<%
Class clazz = Class.forName("com.testing.junk.Cyber");
Object anObject = clazz.newInstance();
String value = anObject.toString();
%>
The text is <%=value%>
===========================================================
I get the exception:
===========================================================
root cause
java.lang.ClassNotFoundException: com.testing.junk.Cyber
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:127)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:65)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:164)
org.apache.jsp.test_jsp._jspService(org.apache.jsp.test_jsp:44)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
===========================================================
Here's what I'm doing:
1. I've read the documents at :
http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html
and
http://tomcat.apache.org/tomcat-5.5-doc/config/context.html
2. I've created the class MyClassLoader which extends
WebappClassLoader and placed it at
This class calls super.addRepository("d:/temp/bin/") via its constructors.
3. I've placed MyClassLoader at ${catalina.home}/server/classes
4. My ${catalina.home}/webapps/test.xml file has the contents
<Context docBase="d:/temp/test"
privileged="false" antiResourceLocking="false" antiJARLocking="false">
<Loader
classname="com.testing.tomcat.loader.ConfigurableClasspathWebappClassLoader"
classpathEntriesFile="d:\\temp\\abc.properties" />
</Context>
5. The class com.testing.junk.Cyber is placed at d:/temp/bin
-- Sriram
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