// my html code that calls the Javabean stored in the following path : "http//localhost:8080/vennila/Beans/bean.jsp" <html>
<body>
<
jsp:useBean id="a" class="sun.bean" scope="session"/>
<jsp:setProperty name="a" property="*"/>
<%=a.getName()%>
<%=a.getName2()%>
</body>
</html>
// my input page that calls the <html>
<head>
<title>New Page 1</title>
</head>
<body>
<form method="POST" action="http://localhost:8080/vennila/Beans/bean.jsp">
<p><input type="text" name="name" size="20"></p>
<p><input type="text" name="name2" size="20"></p>
<p><input type="submit" value="Submit" name="B1"></p>
</form>
</body>
</html>
// my java bean stored in the following path : C:\Program Files\Apache Tomcat 4.0\webapps\vennila\WEB-INF\classes package sun;
public class bean implements java.io.Serializable
{
private
String name;
private String name2;
public bean()
{
}
public void setName(String name1)
{
name=name1;
}
public String getName()
{
return name;
}
public void setName2(String name3)
{
name2=name3;
}
public String getName2()
{
return name2;
}
}
while compiling the bean file i haven't got any error but when executing the jsp file i am getting the following error,
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
error: Invalid class file format in C:\Program Files\Apache Tomcat 4.0\webapps\vennila\WEB-INF\classes\sun\bean.class. The major.minor version '49.0' is too recent for this tool to understand.
An error occurred at line: 4 in the jsp file: /Beans/bean.jsp
Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\localhost\vennila\Beans\bean$jsp.java:60: Class sun.bean not found.
sun.bean a = null; ^
when i execute the same code in my neighbours system its working. kindly let me know what could be the reason in my system or is it in my program. 
