Unable to compile Class for JSPC

[Sanjay]

  Dear All,
                  I am running tomcat 4.0.1 Server and have created WEB-INF/classes 
directory. I've put my test.class file under this classes directory and accessing it 
from one JSP file with "usebean" method. I am getting following error while accessing 
the webpage.

"org.apache.jasper.JasperException:Unable to compile class for JSPC:............
Class test not found... import test "

Could you pls. guide me to solve the above error.

Thanks in advance,
Sanjay