HTTP Status 500 - org apache jasper JasperException java lang NullPointerException

Question

I deployed my project on the production server and getting the below error.

It's a live project so , after getting error i replaced this with previous version that was running fine but now that is also throwing the same error.Please suggest me what could be the problem ?

error:

HTTP Status 500 - org.apache.jasper.JasperException: java.lang.NullPointerException

--------------------------------------------------------------------------------

type Exception report

message org.apache.jasper.JasperException: java.lang.NullPointerException

description The server encountered an internal error that prevented it from fulfilling this request.

exception 

org.apache.jasper.JasperException: org.apache.jasper.JasperException: java.lang.NullPointerException
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:502)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:412)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

org.apache.jasper.JasperException: java.lang.NullPointerException
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:502)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:430)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:709)
    org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:680)
    org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:821)
    org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:794)
    org.apache.jsp.LPSSuppIndex_jsp._jspService(LPSSuppIndex_jsp.java:393)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

java.lang.NullPointerException
    org.apache.jsp.error_jsp._jspService(error_jsp.java:124)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:709)
    org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:680)
    org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:821)
    org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:794)
    org.apache.jsp.LPSSuppIndex_jsp._jspService(LPSSuppIndex_jsp.java:393)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.36 logs.


--------------------------------------------------------------------------------

Apache Tomcat/6.0.36

IndexPage.jsp :

<%@ page errorPage="error.jsp"%>
<%@ page import="java.util.*" %>
<%@ page import = "jdbc.RetrieveLangList,lang.MessageGetter" %>
<%!
    HashMap<String, String> langListMap = new HashMap<String, String>();
%>
<%
        //Retrieving language MAP
        RetrieveLangList objList = new RetrieveLangList();
        langListMap = objList.LangList();
        Set s = langListMap.entrySet(); // Get hashmap in Set interface to get key and value
        Iterator it = s.iterator(); // Move next key and value of HashMap by iterator

        String suppLang = "en_US";
        suppLang = request.getParameter("suppLanguage");
        if (suppLang == null || suppLang.equalsIgnoreCase(""))
            suppLang = "en_US";
%>
<html>
<HEAD>
<TITLE> Welcome to  </TITLE>
<link rel="SHORTCUT ICON" href="image/H.ico"/>
<LINK href="image/css/Rcontent.css" type="text/css" rel="stylesheet">
</HEAD>
<script language="JavaScript">
function loadPage(list)
{
  location.href=list.options[list.selectedIndex].value;
}
</script>
<SCRIPT language="Javascript">
    function ValidateForm()
    {
    //Supplier Number Validation
    var supp_number =document.loginForm.uname;

    if((supp_number.value=="su")||(supp_number.value=="SU"))
        {
            return true;
        }

    var stripped = supp_number.value.replace(/[\(\)\.\-\ ]/g, ''); 
    if((supp_number.value==null)||(supp_number.value==""))
        {
        alert("<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Enter_User_ID")%>");
        supp_number.focus();
        return false;
        }
    else if (isNaN(parseInt(stripped))) {
        alert("<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Invalid_User_ID")%>");
        supp_number.focus();
        return false;
         }

        //Password Validation
        var supp_pass =document.loginForm.pass;
    if((supp_pass.value==null)||(supp_pass.value==""))
        {
        alert("<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Enter_Password")%>");
        //alert("Please Enter Password");
        supp_pass.focus();
        return false;
        }
    return true;
    }
</SCRIPT>
<BODY bgcolor="#C7CACF">
<center>
<table border = "0" bordercolor = "black" style="background-image:url('image/backgroundIndex.jpg');background-repeat:no-repeat" width="1000" HEIGHT = "700" >
<tr height = "60">
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td colspan="2">
    <form name="form1" >
    <TABLE border="0" width = "610">
    <TR>
       <td width="300" align="right" height="40">
            <select name="file" size="1" onchange="loadPage(this.form.elements[0])" target="_parent._top"  onmouseclick="this.focus()" style="background-color: #ffffff;width:150px;"> <!-- This is language selection box -->
            <%
            while (it.hasNext())
            {
                Map.Entry m = (Map.Entry) it.next(); // key=value separator this by Map.Entry to get key and value
                //System.out.println("value : "+m.getValue()+" key : "+m.getKey());
                if(suppLang.equals(m.getKey()))
                {
            %>
            <option value="LPSSuppIndex.jsp?suppLanguage=<%= m.getKey()%>" selected="selected"><%= m.getValue()%></option>
            <%
                }
                else
                {
            %>
            <option value="LPSSuppIndex.jsp?suppLanguage=<%= m.getKey()%>"><%= m.getValue()%></option>
            <%
                }
            }
            %>
            </select>
         </td>
         <td width = "300px" align="right"><a HREF="mailto:?subject=<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sub_contact")%>&body=<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line1_contact")%>, %0D%0D%0D<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line2_contact")%>, %0D%0D%0D<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line3_contact")%>%0D%0D%0D"><font color="#73767B" size="2"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "contact")%></font></a><font color="#73767B"><B> |</B></font><a href="http://www..com/en/service/imprint-legal-issues.html"><font color="#73767B" size="2"> <%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "imprint_legel_issue")%></font></a><font color="#73767B"><B> | </B></font><a href="http://www..com/en/service/sitemap.html"><font color="#73767B" size="2"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sitemap")%></font></a></td>
    </TR>
    <TR height="12px">
        <TD colspan="2">&nbsp;</TD>
    </TR>
    </TABLE>
    </form>
    </td>
</tr>

<tr>
     <td height = "240px" valign="top">
        <TABLE border="0" width = "195">
        <TR>
            <TD height="40" width="155" align="left"><div style="position:relative;left: 20px;"><a href="LPSSuppIndex.jsp"><font color="#73767B" size="3"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "home")%></font></a></div></TD>
        </TR>
        <TR>
            <TD height="37" align="left"><div style="position:relative;left: 20px;"><A HREF="mailto:[email protected]?subject=<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sub_contact")%>&body=<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line1_contact")%>, %0D%0D%0D<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line2_contact")%>, %0D%0D%0D<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line3_contact")%>%0D%0D%0D"><font color="#73767B"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "contact")%></font></a></div></TD>
        </TR>
        <TR>
            <TD height="35" align="left"><div style="position:relative;left: 20px;"><a href="LPSSuppIndex.jsp"><font color="#73767B" size="3"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "log_in")%></font></a></div></TD>
        </TR>
        <TR>
            <TD height="34" align="left">&nbsp;&nbsp;&nbsp;<a href="http://wwwcom"><font color="white" style="font-family:Arial, Helvetica, sans-serif;font-size: 10pt; font-weight: bold"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "tportal")%></font></a></TD>
        </TR>
        <TR>
            <TD height = "32" align="center">&nbsp;</TD>
        </TR>
        <TR>
            <TD height = "43px" colspan="2" align="center">&nbsp;</TD>
        </TR>

        </TABLE>
    </td>

    <td colspan="2">&nbsp;</td>
    <td rowspan="3" valign="top">
        <table border="0px" >
            <tr height="139px"><td>&nbsp;</td><td>&nbsp;</td></tr>
            <tr height="431px">
                <td valign="top" width="8px"><div class="vertical-line" style="position:relative;left:27px;top:0px;"></div></td>
                <td valign="top">
                    <!-- START RIGHT CONTENT  -->

                    <DIV class="cntr_cnt_gradbox" style="position: relative;left: 15px;top: -5px;">
                    <DIV class="cntr_head"><font size="2%"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "PDF_download")%>&nbsp;</font></DIV>
                    <DIV class="cntr_cnt_gradbox_inner">
                        <DIV class="cntr_frame" style="height: 60px;">
                            <DIV style="FLOAT: left;height: 50px;" >
                                <IMG src="image/PDF_Thumbnail_50x50.gif" border="0">
                            </DIV>
                            <DIV class="cntr_dl_cnt" style="MARGIN-LEFT: 55px;">
                                <A class="cntr_lnk" href="PDF/User Maner_EN.pdf" target="_blank"><font color="#73767B" size="2%"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "manual_en")%></font></A>
                            </DIV>&nbsp;
                            <BR class="clr">
                        </DIV>
                        <BR class="clr">
                        <DIV class="cntr_frame" style="height: 60px;">
                            <DIV style="FLOAT: left;height: 50px;" >
                                <IMG src="image/PDF_Thumbnail_50x50.gif" border="0">
                            </DIV>
                            <DIV class="cntr_dl_cnt" style="MARGIN-LEFT: 55px;">
                                <A class="cntr_lnk" href="PDF/Benutzerhl Printer_DE.pdf" target="_blank"><font color="#73767B" size="2%"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "manual_de")%></font></A>
                            </DIV>&nbsp;
                            <BR class="clr">
                        </DIV>
                        <BR class="clr">
                        <DIV class="cntr_frame" style="height: 60px;">
                            <DIV style="FLOAT: left;height: 50px;" >
                                <IMG src="image/PDF_Thumbnail_50x50.gif" border="0">
                            </DIV>
                            <DIV class="cntr_dl_cnt" style="MARGIN-LEFT: 55px;">
                                <A class="cntr_lnk" href="PDF/Print_Specification.pdf" target="_blank" title="<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "printHelp_tip")%>"><font color="#73767B" size="2%"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "printHelp")%></font></A>
                            </DIV>
                            <BR class="clr">
                        </DIV>
                        <DIV class="cntr_frame1" style="height: 30px;">
                             <div style="margin-left: 30px;"> <A class="cntr_lnk" href="PDF/quick_guide_en.pdf" target="_blank"><font color="#73767B" size="2%"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "one_point_lessons")%> - EN</font></A></div>
                        </DIV>

                        <DIV class="cntr_frame1" style="height: 30px;">
                             <div style="margin-left: 30px;"> <A class="cntr_lnk" href="PDF/quick_guide_de.pdf" target="_blank"><font color="#73767B" size="2%"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "one_point_lessons")%> - DE</font></A></div>
                        </DIV>
                        <DIV style="height: 30px;vertical-align: middle;">
                             <div style="margin-left: 30px;"> <A class="cntr_lnk" href="PDF/FAQ.pdf" target="_blank"><font color="#73767B" size="2%">FAQ</font></A></div>
                        </DIV>
                        </DIV>
                    </DIV>
                </td>
            </tr>
        </table>
    </td>
</tr>

<tr height = "210">
    <td>&nbsp;</td>
     <td>&nbsp;</td>
     <td>
     <form method="post" name="loginForm" action="./loginServlet" onsubmit="return ValidateForm()">
     <input type="hidden" name="selectedLang" value="<%=suppLang%>" >
     <TABLE border="0" bordercolor="black" width="370">
     <tr><td rowspan="6" width = "30">&nbsp;</td></tr>

     <TR height="45">
        <td width="110" ><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "user_id")%> : </td><!-- This is Supplier Number(User ID) entry field. -->
     <td width="230" align="center"><input type="text" size="25" name="uname" style="border-color: #529DFA;" maxlength="10"></td>
     </TR>
     <TR>
     <td height="45"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Password")%> : </td><!-- This is Password entry field. -->
      <td align="center"><input type="password" size="25" name="pass" style="border-color: #529DFA;"></td>
     </TR>
     <TR height="40">
     <td>&nbsp;</td>
     <td align ="center" height="40"><A HREF="[email protected]?subject=<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sub_forget_password")%>&body=<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line1_forget_password")%>, %0D%0D%0D<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line2_forget_password")%>%0D%0D%0D"><%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "forget_password")%></A>
    </td>
     </TR>
     <TR>   
     <td height="40" align="right"><input type="Submit" value="<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "log_in")%>" /> </td>
     <td align="center"><input type="button" onClick="location.href='register/suppRegistration.jsp?selectedLang=<%=suppLang%>'" value="<%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "new_user")%>" /></td>
     </TR>
     </TABLE></form>
     </td>
</tr>

<tr height = "114">
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
</tr>

<tr>
    <td width = "200">&nbsp;</td>
    <td width="170">&nbsp;</td>
    <td width="380">&nbsp;</td>
    <td width="230" align="center">&nbsp;</td>
</tr>
</table>
</center>
</BODY>
</HTML>

This question is related to java jsp nullpointerexception tomcat6

User · Answer

NullPointerException with JSP can also happen if   A getter returns a non-public inner class   This code will fail if you remove Getters s access modifier or make it private or protected   JAVA   package com myPackage  public class MyClass           Must be public or you will get          org apache jasper JasperException           java lang NullPointerException     public class Getters          public String          myProperty    return my property                      JSP EL can only access functions      private Getters  get      public  Getters  get    return  get         private String      my property       public MyClass String my property           super            this my property      my property           get   new Getters                  JSP   lt    taglib uri     http   java sun com jsp jstl core  prefix  c    gt   lt    page import  com myPackage MyClass    gt   lt       MyClass inst   new MyClass   PROP VALUE         pageContext setAttribute  my inst   inst       gt  lt html lang  en  gt  lt body gt         my inst get   myProperty      lt  body gt  lt  html gt

User · Answer

In Tomcat a  java and  class file will be created for every jsp files with in the application and the same can be found from the path below  Apache-Tomcat work Catalina localhost  ApplicationName  org apache jsp index jsp java  In your case the jsp name is error jsp so the path should be something like below Apache-Tomcat work Catalina localhost  ApplicationName  org apache jsp error jsp java in line no 124 you are trying to access a null object which results in null pointer exception

[java] HTTP Status 500 - org.apache.jasper.JasperException: java.lang.NullPointerException

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