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

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  1. POHTTP Status 500 - org.apache.jasper.JasperException: java.lang.NullPointerException
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    <p>I deployed my project on the production server and getting the below error.</p> <p>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 ?</p> <p>error:</p> <pre><code>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 </code></pre> <p>IndexPage.jsp :</p> <pre><code>&lt;%@ page errorPage="error.jsp"%&gt; &lt;%@ page import="java.util.*" %&gt; &lt;%@ page import = "jdbc.RetrieveLangList,lang.MessageGetter" %&gt; &lt;%! HashMap&lt;String, String&gt; langListMap = new HashMap&lt;String, String&gt;(); %&gt; &lt;% //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"; %&gt; &lt;html&gt; &lt;HEAD&gt; &lt;TITLE&gt; Welcome to &lt;/TITLE&gt; &lt;link rel="SHORTCUT ICON" href="image/H.ico"/&gt; &lt;LINK href="image/css/Rcontent.css" type="text/css" rel="stylesheet"&gt; &lt;/HEAD&gt; &lt;script language="JavaScript"&gt; function loadPage(list) { location.href=list.options[list.selectedIndex].value; } &lt;/script&gt; &lt;SCRIPT language="Javascript"&gt; 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("&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Enter_User_ID")%&gt;"); supp_number.focus(); return false; } else if (isNaN(parseInt(stripped))) { alert("&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Invalid_User_ID")%&gt;"); supp_number.focus(); return false; } //Password Validation var supp_pass =document.loginForm.pass; if((supp_pass.value==null)||(supp_pass.value=="")) { alert("&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Enter_Password")%&gt;"); //alert("Please Enter Password"); supp_pass.focus(); return false; } return true; } &lt;/SCRIPT&gt; &lt;BODY bgcolor="#C7CACF"&gt; &lt;center&gt; &lt;table border = "0" bordercolor = "black" style="background-image:url('image/backgroundIndex.jpg');background-repeat:no-repeat" width="1000" HEIGHT = "700" &gt; &lt;tr height = "60"&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="2"&gt; &lt;form name="form1" &gt; &lt;TABLE border="0" width = "610"&gt; &lt;TR&gt; &lt;td width="300" align="right" height="40"&gt; &lt;select name="file" size="1" onchange="loadPage(this.form.elements[0])" target="_parent._top" onmouseclick="this.focus()" style="background-color: #ffffff;width:150px;"&gt; &lt;!-- This is language selection box --&gt; &lt;% 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())) { %&gt; &lt;option value="LPSSuppIndex.jsp?suppLanguage=&lt;%= m.getKey()%&gt;" selected="selected"&gt;&lt;%= m.getValue()%&gt;&lt;/option&gt; &lt;% } else { %&gt; &lt;option value="LPSSuppIndex.jsp?suppLanguage=&lt;%= m.getKey()%&gt;"&gt;&lt;%= m.getValue()%&gt;&lt;/option&gt; &lt;% } } %&gt; &lt;/select&gt; &lt;/td&gt; &lt;td width = "300px" align="right"&gt;&lt;a HREF="mailto:?subject=&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sub_contact")%&gt;&amp;body=&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line1_contact")%&gt;, %0D%0D%0D&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line2_contact")%&gt;, %0D%0D%0D&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line3_contact")%&gt;%0D%0D%0D"&gt;&lt;font color="#73767B" size="2"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "contact")%&gt;&lt;/font&gt;&lt;/a&gt;&lt;font color="#73767B"&gt;&lt;B&gt; |&lt;/B&gt;&lt;/font&gt;&lt;a href="http://www..com/en/service/imprint-legal-issues.html"&gt;&lt;font color="#73767B" size="2"&gt; &lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "imprint_legel_issue")%&gt;&lt;/font&gt;&lt;/a&gt;&lt;font color="#73767B"&gt;&lt;B&gt; | &lt;/B&gt;&lt;/font&gt;&lt;a href="http://www..com/en/service/sitemap.html"&gt;&lt;font color="#73767B" size="2"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sitemap")%&gt;&lt;/font&gt;&lt;/a&gt;&lt;/td&gt; &lt;/TR&gt; &lt;TR height="12px"&gt; &lt;TD colspan="2"&gt;&amp;nbsp;&lt;/TD&gt; &lt;/TR&gt; &lt;/TABLE&gt; &lt;/form&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height = "240px" valign="top"&gt; &lt;TABLE border="0" width = "195"&gt; &lt;TR&gt; &lt;TD height="40" width="155" align="left"&gt;&lt;div style="position:relative;left: 20px;"&gt;&lt;a href="LPSSuppIndex.jsp"&gt;&lt;font color="#73767B" size="3"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "home")%&gt;&lt;/font&gt;&lt;/a&gt;&lt;/div&gt;&lt;/TD&gt; &lt;/TR&gt; &lt;TR&gt; &lt;TD height="37" align="left"&gt;&lt;div style="position:relative;left: 20px;"&gt;&lt;A HREF="mailto:er_Admin@de..com?subject=&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sub_contact")%&gt;&amp;body=&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line1_contact")%&gt;, %0D%0D%0D&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line2_contact")%&gt;, %0D%0D%0D&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line3_contact")%&gt;%0D%0D%0D"&gt;&lt;font color="#73767B"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "contact")%&gt;&lt;/font&gt;&lt;/a&gt;&lt;/div&gt;&lt;/TD&gt; &lt;/TR&gt; &lt;TR&gt; &lt;TD height="35" align="left"&gt;&lt;div style="position:relative;left: 20px;"&gt;&lt;a href="LPSSuppIndex.jsp"&gt;&lt;font color="#73767B" size="3"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "log_in")%&gt;&lt;/font&gt;&lt;/a&gt;&lt;/div&gt;&lt;/TD&gt; &lt;/TR&gt; &lt;TR&gt; &lt;TD height="34" align="left"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;a href="http://wwwcom"&gt;&lt;font color="white" style="font-family:Arial, Helvetica, sans-serif;font-size: 10pt; font-weight: bold"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "tportal")%&gt;&lt;/font&gt;&lt;/a&gt;&lt;/TD&gt; &lt;/TR&gt; &lt;TR&gt; &lt;TD height = "32" align="center"&gt;&amp;nbsp;&lt;/TD&gt; &lt;/TR&gt; &lt;TR&gt; &lt;TD height = "43px" colspan="2" align="center"&gt;&amp;nbsp;&lt;/TD&gt; &lt;/TR&gt; &lt;/TABLE&gt; &lt;/td&gt; &lt;td colspan="2"&gt;&amp;nbsp;&lt;/td&gt; &lt;td rowspan="3" valign="top"&gt; &lt;table border="0px" &gt; &lt;tr height="139px"&gt;&lt;td&gt;&amp;nbsp;&lt;/td&gt;&lt;td&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;tr height="431px"&gt; &lt;td valign="top" width="8px"&gt;&lt;div class="vertical-line" style="position:relative;left:27px;top:0px;"&gt;&lt;/div&gt;&lt;/td&gt; &lt;td valign="top"&gt; &lt;!-- START RIGHT CONTENT --&gt; &lt;DIV class="cntr_cnt_gradbox" style="position: relative;left: 15px;top: -5px;"&gt; &lt;DIV class="cntr_head"&gt;&lt;font size="2%"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "PDF_download")%&gt;&amp;nbsp;&lt;/font&gt;&lt;/DIV&gt; &lt;DIV class="cntr_cnt_gradbox_inner"&gt; &lt;DIV class="cntr_frame" style="height: 60px;"&gt; &lt;DIV style="FLOAT: left;height: 50px;" &gt; &lt;IMG src="image/PDF_Thumbnail_50x50.gif" border="0"&gt; &lt;/DIV&gt; &lt;DIV class="cntr_dl_cnt" style="MARGIN-LEFT: 55px;"&gt; &lt;A class="cntr_lnk" href="PDF/User Maner_EN.pdf" target="_blank"&gt;&lt;font color="#73767B" size="2%"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "manual_en")%&gt;&lt;/font&gt;&lt;/A&gt; &lt;/DIV&gt;&amp;nbsp; &lt;BR class="clr"&gt; &lt;/DIV&gt; &lt;BR class="clr"&gt; &lt;DIV class="cntr_frame" style="height: 60px;"&gt; &lt;DIV style="FLOAT: left;height: 50px;" &gt; &lt;IMG src="image/PDF_Thumbnail_50x50.gif" border="0"&gt; &lt;/DIV&gt; &lt;DIV class="cntr_dl_cnt" style="MARGIN-LEFT: 55px;"&gt; &lt;A class="cntr_lnk" href="PDF/Benutzerhl Printer_DE.pdf" target="_blank"&gt;&lt;font color="#73767B" size="2%"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "manual_de")%&gt;&lt;/font&gt;&lt;/A&gt; &lt;/DIV&gt;&amp;nbsp; &lt;BR class="clr"&gt; &lt;/DIV&gt; &lt;BR class="clr"&gt; &lt;DIV class="cntr_frame" style="height: 60px;"&gt; &lt;DIV style="FLOAT: left;height: 50px;" &gt; &lt;IMG src="image/PDF_Thumbnail_50x50.gif" border="0"&gt; &lt;/DIV&gt; &lt;DIV class="cntr_dl_cnt" style="MARGIN-LEFT: 55px;"&gt; &lt;A class="cntr_lnk" href="PDF/Print_Specification.pdf" target="_blank" title="&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "printHelp_tip")%&gt;"&gt;&lt;font color="#73767B" size="2%"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "printHelp")%&gt;&lt;/font&gt;&lt;/A&gt; &lt;/DIV&gt; &lt;BR class="clr"&gt; &lt;/DIV&gt; &lt;DIV class="cntr_frame1" style="height: 30px;"&gt; &lt;div style="margin-left: 30px;"&gt; &lt;A class="cntr_lnk" href="PDF/quick_guide_en.pdf" target="_blank"&gt;&lt;font color="#73767B" size="2%"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "one_point_lessons")%&gt; - EN&lt;/font&gt;&lt;/A&gt;&lt;/div&gt; &lt;/DIV&gt; &lt;DIV class="cntr_frame1" style="height: 30px;"&gt; &lt;div style="margin-left: 30px;"&gt; &lt;A class="cntr_lnk" href="PDF/quick_guide_de.pdf" target="_blank"&gt;&lt;font color="#73767B" size="2%"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "one_point_lessons")%&gt; - DE&lt;/font&gt;&lt;/A&gt;&lt;/div&gt; &lt;/DIV&gt; &lt;DIV style="height: 30px;vertical-align: middle;"&gt; &lt;div style="margin-left: 30px;"&gt; &lt;A class="cntr_lnk" href="PDF/FAQ.pdf" target="_blank"&gt;&lt;font color="#73767B" size="2%"&gt;FAQ&lt;/font&gt;&lt;/A&gt;&lt;/div&gt; &lt;/DIV&gt; &lt;/DIV&gt; &lt;/DIV&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr height = "210"&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt; &lt;form method="post" name="loginForm" action="./loginServlet" onsubmit="return ValidateForm()"&gt; &lt;input type="hidden" name="selectedLang" value="&lt;%=suppLang%&gt;" &gt; &lt;TABLE border="0" bordercolor="black" width="370"&gt; &lt;tr&gt;&lt;td rowspan="6" width = "30"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt; &lt;TR height="45"&gt; &lt;td width="110" &gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "user_id")%&gt; : &lt;/td&gt;&lt;!-- This is Supplier Number(User ID) entry field. --&gt; &lt;td width="230" align="center"&gt;&lt;input type="text" size="25" name="uname" style="border-color: #529DFA;" maxlength="10"&gt;&lt;/td&gt; &lt;/TR&gt; &lt;TR&gt; &lt;td height="45"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "Password")%&gt; : &lt;/td&gt;&lt;!-- This is Password entry field. --&gt; &lt;td align="center"&gt;&lt;input type="password" size="25" name="pass" style="border-color: #529DFA;"&gt;&lt;/td&gt; &lt;/TR&gt; &lt;TR height="40"&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td align ="center" height="40"&gt;&lt;A HREF="mailto_Printer_Admin@de.h.com?subject=&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "sub_forget_password")%&gt;&amp;body=&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line1_forget_password")%&gt;, %0D%0D%0D&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "body_line2_forget_password")%&gt;%0D%0D%0D"&gt;&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "forget_password")%&gt;&lt;/A&gt; &lt;/td&gt; &lt;/TR&gt; &lt;TR&gt; &lt;td height="40" align="right"&gt;&lt;input type="Submit" value="&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "log_in")%&gt;" /&gt; &lt;/td&gt; &lt;td align="center"&gt;&lt;input type="button" onClick="location.href='register/suppRegistration.jsp?selectedLang=&lt;%=suppLang%&gt;'" value="&lt;%=MessageGetter.getMessage("lang.MessagesBundle", suppLang, "new_user")%&gt;" /&gt;&lt;/td&gt; &lt;/TR&gt; &lt;/TABLE&gt;&lt;/form&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr height = "114"&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td width = "200"&gt;&amp;nbsp;&lt;/td&gt; &lt;td width="170"&gt;&amp;nbsp;&lt;/td&gt; &lt;td width="380"&gt;&amp;nbsp;&lt;/td&gt; &lt;td width="230" align="center"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/center&gt; &lt;/BODY&gt; &lt;/HTML&gt; </code></pre>
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USNibha Jain
    1. USNibha Jain
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. VO
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      1. POHTTP Status 500 - org.apache.jasper.JasperException: java.lang.NullPointerException
      1. This table or related slice is empty.
      1. VTDownMod
    1. CONullPointerException is a code error, you are trying to access a null object. Better post servlet code also for getting the right help.
      singulars
      1. POHTTP Status 500 - org.apache.jasper.JasperException: java.lang.NullPointerException
      1. USJuned Ahsan
    2. COshow also the LPSSuppIndex.jsp code, there must be a null object there
      singulars
      1. POHTTP Status 500 - org.apache.jasper.JasperException: java.lang.NullPointerException
      1. USMaVRoSCy
    3. CONOthing to do with `jar's` here, Post the Jsp code causing error.
      singulars
      1. POHTTP Status 500 - org.apache.jasper.JasperException: java.lang.NullPointerException
      1. USꜱᴜʀᴇꜱʜ ᴀᴛᴛᴀ
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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