ClassNotFoundException

[buzz]

Hi all, I am attempting to call the following code when I get a CNFE:

Object tempObj = Beans.instantiate (null,actionDelegateName);
servletActionDelegate = (ServletActionDelegate)Beans.getInstanceOf(tempObj,ServletActionDelegate.class);

The actual class exists in the appropriate package in the WEB-INF/classes directory (within a war file) but for some reason it still cannot be found....

I've tried to include the class packaged in a jar in the jboss/lib/ext directory also - still, it cannot be found.

Here is part of the stacktrace:

[EmbeddedTomcatSX] java.lang.ClassNotFoundException: x.xx.xxx.actiondelegates.ProfileManagerServletActionDelegate
[EmbeddedTomcatSX] at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
[EmbeddedTomcatSX] at java.security.AccessController.doPrivileged(Native Method)
[EmbeddedTomcatSX] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
[EmbeddedTomcatSX] at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
[EmbeddedTomcatSX] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
[EmbeddedTomcatSX] at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
[EmbeddedTomcatSX] at java.beans.Beans.instantiate(Beans.java:190)
[EmbeddedTomcatSX] at java.beans.Beans.instantiate(Beans.java:51)

Thanks in advance for any advice!

Buzz

[atifumar]

What Confiuration are u using , i am using jboss2.2.2/tomcat3.2.2 , i also had problems in finding the classes packaged in a jar file Actually when u start jboss-tomcat then its unable to find the jar file ,
i tackled this problem by including the jar file in the classpath this solves the problem
here's hwat i did in the run_with_tomcat.bat

@echo off
set JBOSS_CLASSPATH=%JBOSS_CLASSPATH%;%JAVA_HOME%/lib/tools.jar;%JBOSS_HOME%/deploy
.\run.bat tomcat

if this also dosent work then try setting the full path of ur jar file

i hope one of the two will work
bfn

[buzz]

I am also using jboss 2.2.2-tomcat 3.2.2.

Do you know if there is a definitive document regarding classpaths when dealing with jboss 2.2.2-tomcat 3.2.2. ?

[buzz]

I believe I know what the problem is but I am unsure how to fix it....

I make the following call:

Object tempObj = Beans.instantiate (null,actionDelegateName);

Becuase I pass null as the first argument, a "system classloader" is used.... but that is not necessarily the classloader that has web-inf/classes or web-inf/lib in its classpath...

so the question is how do I get a reference to the classloader that has web-inf/classes and web-inf/lib in its classpath?

[buzz]

I'm dancing a jig as I write this...

I used the following to get the appropriate classloader:

Object tempObj = Beans.instantiate (this.getClass().getClassLoader(),actionDelegateName);

woo hoo!

[marc.fleury]

That's the context class loader