JSP and package deployment problem in Tomcat 5

Hi,
I tried very simple exercise that includes JSP and javabean (from package), but I have the following error:
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: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Compiling 1 source file
[javac] C:\jwsdp\work\Catalina\localhost\exercises\org\apache\jsp\ex01\ex01_jsp.java:10:
package pack01 does not exist
[javac] import pack01.ex01;
[javac] ^
Bellow are all my sources
1. directory structure
========================
C:\jwsdp\webapps\exercises
index.html
C:\jwsdp\webapps\exercises\ex01
build.bat
ex01.jsp
C:\jwsdp\webapps\exercises\ex01\WEB-INF
web.xml
C:\jwsdp\webapps\exercises\ex01\WEB-INF\classes
C:\jwsdp\webapps\exercises\ex01\WEB-INF\classes\pack01
ex01.class
ex01.java
C:\jwsdp\webapps\exercises\ex01\WEB-INF\lib
pack01.jar
2. sources
==========
<< ex01.jsp >>
<HTML> <HEAD> <TITLE>Ex01</TITLE> </HEAD>
<BODY>
<FORM METHOD="GET" ACTION="ex01.jsp">
<%@ page import = "pack01.ex01" %>
<H2>Ex01</H2>
<jsp:useBean id = "x" class = "ex01" scope="application"/>
</FORM>
</BODY> </HTML>
<< ex01.java >>
package pack01;
import java.io.*;
public class ex01 implements Serializable {
private String value;
public ex01() {
value = "EX01";
public void setValue(String s) {
value = s;
public String getValue() {
return value;
<< build.bat >>
cd WEB-INF\classes\
cd
del ex01.jar
javac -deprecation -verbose pack01\ex01.java
jar cvf ..\lib\pack01.jar pack01\ex01.class
<< C:\jwsdp\webapps\exercises.xml >>
<Context className="org.apache.catalina.core.StandardContext"
     cachingAllowed="true"
     charsetMapperClass="org.apache.catalina.util.CharsetMapper"
     configFile="webapps\exercises.xml"
     cookies="true"
     crossContext="false"
     debug="0"
     displayName="Exercises"
     docBase="C:\jwsdp\webapps\exercises"
     domain="Catalina"
     engineName="Catalina"
     j2EEApplication="none"
     j2EEServer="none"
     lazy="true"
     mapperClass="org.apache.catalina.core.StandardContextMapper"
     path="/exercises"
     privileged="false"
     reloadable="true"
     startupTime="30"
     swallowOutput="true"
     useNaming="true"
     wrapperClass="org.apache.catalina.core.StandardWrapper" >
</Context>
What is wrong ?
I have Windows NT and Tomcat 5 (from jwsdp 1.2).
Thank you,
Alex.

I just tried to reproduce the problem with old version of Tomcat (4.0.2) and ... it works. It is definitely specific for Tomcat 5 (or may be one of the late Tomcat 4 as well). There is another related difference:
With Tomcat 4 I could create javabean in class subdirectory (default package) and use
<%@ page import="ex01" %>
Now with Tomcat 5 I have syntax error in this line.
This syntax error disappeared when I moved javabean into package pack01.

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