Help me rguarding page forwading

i have two pages.:- USING RAD:-
SearchLeaveType.jsp:-
<%
//String PAGE_CODE="HRAR06";LEVM03
String PAGE_CODE="LEVM020";
%>
<%@ include file= "/common/sessionValidator.jsp" %>

<%
request.setAttribute("title","SearchEmployee");
%>

<jsp:include page= "/common/topband.jsp" />
<%
///YOU ARE REQUESTED NOT TO TOUCH ANY OF THE CODE ABOVE WITHOUT PRIOR PERMISSION.
%>

<%@ page language="java" import="java.util.*,java.io.*,java.text.*,com.sdne t.hr.support.*,
com.sdnet.disnet.cmn.support.*, com.sdnet.disnet.customer.support.*, com.sdnet.util.common.*,
com.sdnet.supnet.masters.support.*" %>

<jsp:useBean id ="hrWorker" class="com.sdnet.hr.support.HRWorker" scope="request"/>
<table width="100%" border="0" cellspacing="0" cellpadding="0" height="385">
<script language="JavaScript">
function view()
{

var ind=window.document.form1.leaveType.options.select edIndex;
if(window.document.form1.leaveType.options[ind].value=="Select")
{
alert("Please select a Leave Type first");
}
else
{
window.document.form1.submit();
}
}
<%
User user=(User)session.getValue("user");
System.out.println("Prashant 1st-----------------------------------------------"+user);
session.setAttribute("YearCode",request.getParamet er("YearCode"));
String usercode=user.getUserCode();
String yearcode ="";
java.util.Date _yearcode = new java.util.Date();
SimpleDateFormat simpledatef = new SimpleDateFormat ("yyyyMM");
yearcode = simpledatef.format(_yearcode);
// System.out.println(" oooo =======> "+yearcode.substring(0,4));
//daWorker.showDetailLeaveApplication1(usercode,year code.substring(0,4));//change in this method ratish
HashMap leave = new HashMap();
//leave = daWorker.getleaveDetailnew(usercode); //
//leave = daWorker.getleaveDetailnew1(usercode);
request.setAttribute("leave", leave);
String sysdate ="";
java.util.Date _sysdate = new java.util.Date();
SimpleDateFormat simpledf = new SimpleDateFormat ("dd'/'MM'/'yyyy");
sysdate = simpledf.format(_sysdate);

%>
</script>

<tr >
<td colspan="2" class="heading" width="100%">SELECT LEAVE TYPE</td>
</tr>
<tr align="center" >

<td colspan="2" width="100%" valign="top" height="352">

<%
ArrayList leaveT=(ArrayList)hrWorker.loadLeave();
// String yearCode=request.getParameter("YearCode");

// yearCode=session.getAttribute("YearCode");
session.setAttribute("YearCode",request.getParamet er("YearCode"));

String message =(String)request.getAttribute("error");
%>

<form name="form1" method="post" action="LeaveApplicationEntry.jsp">

<p> </p>
<p> </p>
<p> </p>
<p> </p>
<%
if( (message != null) && ( (message.trim().length() ) > 0) )
{
%>

<div align="center" >
<span class="error" >
<%=message %>
</span>
</div>

<br>
<%

}
else
{

}
%>

<table width="55%" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td class="back">
<table width="100%" border="0" cellspacing="1" cellpadding="3">
<tr>

<td class="back" width="35%">Select Leave Type :</td>

<td class="tableback" width="65%">
<select name="leaveType">
<%
for(int loopArrear=0;loopArrear<leaveT.size();loopArrear++ )
{
Hr leaveInfo=(Hr)leaveT.get(loopArrear);

//String empVal=leaveInfo.getEmpCode()+"|"+empInfo.getEmplo yeeName()+"|"+yearCode;
%>
<option value="<%=leaveInfo.getLeaveType()%>"><%=leaveInfo .getLeaveType()%></option>
<%
// System.out.println("valueUser="+empVal+" "+empInfo.getEmpCode());
}
%>
<option value="Select" selected>Select</option>
</select>
</td>
</tr>
</table>
</td>
</tr>
</table>
<br>
<br>

<input type="button" name="Submit" value="Submit" onClick="view() ">
</form>
</td>
</tr>
</table>
<%
%>
<jsp:include page= "/common/bottomband.jsp" flush="true"/>

and other is : LeaveApplicationEntry.jsp

<html>
<head>
<link rel="stylesheet" type="text/css" href="main.css">
<%
String PAGE_CODE="LEVM02";
/**

* Copyright(c) 2001, Bharti Telesoft Ltd.
* All Rights Reserved

*-----------------------------------------------------------------------
* Author Date History
*-----------------------------------------------------------------------
* ratish jha 12/08/2008 Initial Creation
*-----------------------------------------------------------------------
*/
%>
<%@ include file= "/common/sessionValidator.jsp" %>
<%
System.out.println("Prashant in Leave Application Entry");
request.setAttribute("title","Leave Application");
%>
<jsp:include page= "/common/topband.jsp" flush="true"/>

<%
System.out.println("Hello Prashant....................................1");
User user1=(User)session.getValue("user");
System.out.println("Hello Prashant....................................1"+req uest.getAttribute("leaveType"));
System.out.println("Hello Prashant....................................1"+use r1);
///YOU ARE REQUESTED NOT TO TOUCH ANY OF THE CODE ABOVE WITHOUT PRIOR PERMISSION.
%>

<%@ page language="java" import="java.text.*, java.util.*,com.sdnet.util.common.SDNETUtil.*, com.sdnet.hr.support.*" %>
<%@ page session="true" %>
<%System.out.println("Hello Prashant....................................2"); %>
<jsp:useBean id ="daWorker" class="com.sdnet.hr.support.DailyAttendenceWorker" scope="session"/>
<jsp:setProperty name="rmWorker" property="*"/>
<%System.out.println("Hello Prashant....................................3"); %>

<script language="Javascript1.2">
//04102008

//end
function isValidDate(s)
{
var ddmmyyyy = s.value;
if(ddmmyyyy==null)
{
alert("Sorry date must be in dd/mm/yyyy format ");
return false;
}
if(ddmmyyyy.length !=10)
{
alert("Sorry date must be in dd/mm/yyyy format ");
return false;
}
var dd = ddmmyyyy.substring(0,2);
var mm = ddmmyyyy.substring(3,5);
var yyyy = ddmmyyyy.substring(6);
var FirstSlash = ddmmyyyy.substring(2,3);
var SecondSlash = ddmmyyyy.substring(5,6);
if(FirstSlash != '/')
{
alert("Sorry date must be in dd/mm/yyyy format ");
return false;
}
if(SecondSlash != '/')
{
alert("Sorry date must be in dd/mm/yyyy format ");
return false;
}
var leap1 = parseInt(yyyy%4);
if(dd<0 || dd>31)
{
alert("Sorry date between 1 and 31 ");
return false;
}
if(mm<0 || mm>12)
{
alert("Sorry month between 1 and 12 ");
return false;
}
if((dd==29) && mm==2 && leap1!=0)
{
alert("Not a valid leap yr ");
return false;
}
if(mm==2)
{
if((dd==31) || (dd==30))
{
alert("Feb not having 30 and 31 ");
return false;
}
}
if((mm==4) ||(mm==6) ||(mm==9) ||(mm==11))
{
if(dd==31)
{
alert("4,6,9,11 not having 31 days");
return false;
}
}
return true;

}

function Save()
{
var leavefrom = form1.fromdate.value;
var leaveto = form1.todate.value;
leavefrom = leavefrom.substring(3,5);
leaveto = leaveto.substring(3,5);
if(leavefrom!=leaveto)
{
alert("Please Apply seperatly for each Month Leave as new Record");
form1.todate.focus();
}
else if(form1.numberofdays.value=="")
{
alert("Please Insert Number of Days");
form1.numberofdays.focus();
}
else
{
window.document.form1.submit();
}
}

function checks(ob)
{
var flag=true;
if(isNaN(ob.value))
{
alert("Please Enter Numeric Value Only");
ob.value="";
flag=false;
ob.focus();
}
else if((flag)&&(parseFloat(ob.value)<0))
{
alert("(-)ve Amount is not allowed")
ob.focus()
}
else if((flag)&&(ob.value==" "))
{
ob.value="";
}
checknumberofDays();
}

function chknull(ob)
{
var flag= true;
if(ob.value=="")
{
alert("Field Can not Left Blank");
flag=false;
ob.focus();
}
}
//30092009

function checkf(ob)

{

var FestivalLeave=document.form1.FestivalLeave.value;
//alert("FestivalLeave=="+FestivalLeave);

var numberofdays=eval(document.form1.numberofdays.valu e);
//alert("numberofdays=="+numberofdays);
if (FestivalLeave=='y' )
{
if( parseFloat(form1.numberofdays.value)>1)
{
alert("Please aqpply only one day festival leave ");
document.form1.numberofdays.value=1;
document.form1.todate.value=document.form1.fromdat e.value
//document.form1.FestivalLeave.value=false;
//FestivalLeave
//form1.numberofdays.focus();
//return false;
}
}

}

//end

//end
function checknumberofDays()
{
if(parseFloat(form1.numberofdays.value)>parseFloat (form1.leavebalence.value))
{
alert("You can not applied the Leave");
form1.numberofdays.focus();
form1.numberofdays.value="";
}
}
<%
User user=(User)session.getValue("user");
String usercode=user.getUserCode();
String yearcode ="";
java.util.Date _yearcode = new java.util.Date();
SimpleDateFormat simpledatef = new SimpleDateFormat ("yyyyMM");
yearcode = simpledatef.format(_yearcode);
// System.out.println(" oooo =======> "+yearcode.substring(0,4));
daWorker.showDetailLeaveApplication1(usercode,year code.substring(0,4));//change in this method ratish
HashMap leave = new HashMap();
//leave = daWorker.getleaveDetailnew(usercode); //
leave = daWorker.getleaveDetailnew1(usercode);
request.setAttribute("leave", leave);
String sysdate ="";
java.util.Date _sysdate = new java.util.Date();
SimpleDateFormat simpledf = new SimpleDateFormat ("dd'/'MM'/'yyyy");
sysdate = simpledf.format(_sysdate);

%>
</script>
<body>
<form name="form1" method="get" action="LeaveApplicationEntryC.jsp">
<table width="100%" height="150" border="0" align="center" cellspacing="0" cellpadding="0" id="table1">
<tr>
<td class="heading" width="100%">Leave Application</td>
</tr>
<tr><td> </td></tr>
<tr><td> </td></tr>
<tr>
<td width="100%">
<table width="100%" border="1" cellspacing="0" cellpadding="0" id="table2">
<tr><input type="hidden" name="usercode" value="<%=usercode %>">
<input type="hidden" name="yearcode" value="<%=yearcode.substring(0,4) %>">
<input type="hidden" name="gradecode" value="<%=daWorker.getGradecode() %>">
<input type="hidden" name="deptcode" value="<%=daWorker.getDeptcode() %>">
<input type="hidden" name="locationcode" value="<%=daWorker.getLocationcode() %>">


<input type="hidden" name="emailid" value="<%=daWorker.getEmailid() %>">
<input type="hidden" name="empname1" value="<%=daWorker.getEmpname() %>">
<%//System.out.println("emailid in jsp page is ----22092008----------"+daWorker.getEmailid()); %>


<td class="back" width="25%" height="20">Employee Name</td>
<td class="tableback" width="25%" height="20"><%=daWorker.getEmpname() %></td>
<td class="back" width="25%" height="20">Grade Name</td>
<td class="tableback" width="25%" height="20"><%=daWorker.getGradename() %></td>
</tr>
<tr>
<td class="back" width="25%" height="20">Department Name</td>
<td class="tableback" width="25%" height="20"><%=daWorker.getDeptname() %></td>
<td class="back" width="25%" height="20">Designation</td>
<td class="tableback" width="25%" height="20"><%=daWorker.getDesigname() %></td>
</tr>
<tr>
<td class="back" width="25%" height="20">Category</td>
<td class="tableback" width="25%" height="20"><%=daWorker.getCatname() %></td>
<td class="back" width="25%" align="center">Leave Balance</td>
<TD width="25%" align="left" class="tableback"><input type="text" name="leavebalence" class="maninput" readonly value="<%=daWorker.getLeavebalance() %>"></TD>

</tr>

</table>
<tr>
<td>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td align="center" class=back rowspan="1" width="10%">Leave No</td>
<td align="center" class=back rowspan="1" width="10%">Date of Application</td>
<td align="center" class=back rowspan="1" width="10%">No of Days</td>
<td align="center" class=back colspan="1" width="15%">Leave Applied Period</td>
<td align="left" class=back rowspan="1" width="15%">Reasons</td>
<td align="left" class=back rowspan="1" width="10%">IMP Approved Date</td>
<td align="left" class=back rowspan="1" width="10%">IMP Status</td>
<td align="left" class=back rowspan="1" width="10%"> Hod Approved Date</td>
<td align="left" class=back rowspan="1" width="8%">HodStatus</td>
<td align="left" class=back rowspan="1" width="10%">HRA Approved Date</td>
<td align="left" class=back rowspan="1" width="10%">HRA AppStatus</td>
<td align="left" class=back rowspan="1" width="10%">Cancel</td>
<td align="left" class=back rowspan="1" width="10%">Cancel Date</td>

</tr>

<%
leave = (HashMap)request.getAttribute("leave");
if(leave.size()>0)
{
//for(int i=0;i<leave.size()/4;i++)
//System.out.println("leave.size()==========="+leave .size());
//09102008 for(int i=0;i<leave.size()/11;i++)
for(int i=0;i<leave.size()/15;i++)
{
%>
<tr>
<td align="center" class="tableback" height="10"><%=leave.get("leaveno"+i) %></td>
<td align="center" class="tableback" height="10"><%=leave.get("applieddate"+i) %></td>
<%
//HashMap h11=;
//if((leave.get("fleave"+i)=="Y") || ((leave.get("fleave"+i)).equals("Y")))
//System.out.println("-------------leave f==="+leave.get("fleave"+i));
if((leave.get("fleave"+i)==null) || (leave.get("fleave"+i)=="") || (leave.get("fleave"+i)=="N" ))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10"><%=leave.get("leavetotal"+i) %> </td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("leavetotal"+i) %></td>

<%} %>

<td align="center" class="tableback" height="15"><%=leave.get("leavefrom"+i) %>- <%=leave.get("leaveto"+i) %></td>

<td align="left" class="tableback" height="15"><%=leave.get("reasons"+i) %></td>
<%//System.out.println("reasons================"+leave .get("reasons"+i) );%>

<%
if((leave.get("VERIFIEDON"+i)==null) || (leave.get("VERIFIEDON"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10"></td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("VERIFIEDON"+i)%></td>

<%} %>

<%
if((leave.get("VERIFYSTATUS"+i)==null) || (leave.get("VERIFYSTATUS"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10">-</td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("VERIFYSTATUS"+i)%></td>

<%} %>

<%
if((leave.get("HODVERIFIEDON"+i)==null) || (leave.get("HODVERIFIEDON"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10">-</td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("HODVERIFIEDON"+i)%></td>

<%} %>
<%
if((leave.get("HODVERIFYSTATUS"+i)==null) || (leave.get("HODVERIFYSTATUS"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10">-</td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("HODVERIFYSTATUS"+i)%></td>

<%} %>

<%
if((leave.get("APPROVEDON"+i)==null) || (leave.get("APPROVEDON"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10">-</td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("APPROVEDON"+i)%></td>

<%} %>

<%
if((leave.get("APPSTATUS"+i)==null) || (leave.get("APPSTATUS"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10">-</td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("APPSTATUS"+i)%></td>

<%} %>


<%
if((leave.get("cstatus"+i)==null) || (leave.get("cstatus"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10">-</td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("cstatus"+i)%></td>

<%} %>

<%
if((leave.get("cdate"+i)==null) || (leave.get("cdate"+i)==""))
{
//leave.get("fleave"+i);

%>
<td align="center" class="tableback" height="10">-</td>
<% } else {%>
<td align="center" class="tableback" height="10"> <%=leave.get("cdate"+i)%></td>

<%} %>




</tr>
<% }
} %>
</table>
</td>
</tr>
<tr>
<td>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td align="center" class=back rowspan="2" width="25%">Date of Application</td>
<td align="center" class=back rowspan="2" width="25%">No of Days</td>
<td align="center" class=back colspan="2" width="50%">Leave Applied Period</td>
</tr>
<tr>
<td align="center" class="back">From(DD/MM/YYYY)</td>
<td align="center" class="back">To(DD/MM/YYYY)</td>
</tr>
<tr>
<td align="center" class="tableback"><input type="text" name="dateofapplication" class="maninput" readonly value="<%=sysdate %>"></td>
<td align="center" class="tableback"><input type="text" name="numberofdays" size="10" class="maninput" onblur="checks(this)"></td>
<td align="center" class="tableback"><input type="text" name="fromdate" size="10" maxlength="10" class="maninput" onblur="isValidDate(this)"></td>
<td align="center" class="tableback"><input type="text" name="todate" size="10" maxlength="10" class="maninput" onblur="isValidDate(this)"></td>
</tr>


<%

//estivalLeave=request.getParameter("FestivalLeave") ;
//System.out.println("FestivalLeave============="+Fe stivalLeave);
String available="";
String yearcodel=yearcode.substring(0,4);
System.out.println("yearcodel=========="+yearcodel );
available=daWorker.loadklleaveStatus(usercode,year codel);
//System.out.println("FestivalLeave======available== =04102008===="+available);
//07102008
if(available==null || available=="")
{
available="N";
}
//end
boolean success = false;
if(available.equalsIgnoreCase("Y"))
{
//System.out.println("FestivalLeave====if==available ===04102008===="+available);
%>
<tr>
<td class="back" width="50%" align="center">Festival Leave:</td>
<td class="tableback" colspan="3">
<input type="checkbox" name="FestivalLeave" value="N" checked DISABLED> </td></tr>
<%}

else
{
//System.out.println("FestivalLeave=====else==041020 08===="+available);
%>
<tr>
<td class="back" width="50%" align="center">Festival Leave:</td>
<td class="tableback" colspan="3">
<input type="checkbox" name="FestivalLeave" value="y" onclick="checkf(this)"> </td></tr>
<%} %>


</table>
</td>
</tr>
<tr>
<td>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td class="back" width="50%" align="center">Reasons</td>
<td width="50%" align="center" class="tableback"><TEXTAREA name="reasons" class="maninput" cols="50"></TEXTAREA></td>

</tr>
</table>

</td>
</tr>
<tr>
<td>
<table width="100%" align="center">
<tr>
<td width="100%" align="center"><input type="button" name="Submit" value="Apply" onClick="Save()">

</tr>
</table>
<tr><td> </td></tr>
<tr><td> </td></tr>
</table>
</form>
</body>
</html>
<jsp/common/bottomband.jsp/bottomband.jsp" flush="true"/>

now when i am passing from 1st page to second page it giving error 500 NULL POINTER exception in USEBEAN TAG of second file
<jsp:useBean id ="daWorker" class="com.sdnet.hr.support.DailyAttendenceWorker" scope="session"/>
<jsp:setProperty name="rmWorker" property="*"/>

can anyone help me?