Using Tags in a JSP

Hi,
I have an insert form based on
a table called EXIT_APP, in which I have
an LOV return the employee number to a field. When I do the committing though, I need to find the ID for the employee
based on his employee number.
I keep getting the NullPointerException
error though.
I have included the code from my Submit Insert form :
<%@ page language="java" contentType="text/html;charset=WINDOWS-1252" %>
<html xmlns:jbo="foo">
<body>
<center>
<br>
<%@ taglib uri="/webapp/DataTags.tld" prefix="jbo" %>
<br>
<jbo:ApplicationModule id="package3.Package3Module" configname="package3.Package3Module.Package3ModuleLocal" username="ems_dba" password="dba"/>
<br>
<jbo:DataSource id="ds" appid="package3.Package3Module" viewobject="ExitApplicationsView"/>
<jbo:DataSource id="hremp" appid="package3.Package3Module" viewobject="HrEmployeesView" ></jbo:DataSource>
<%
String pno = request.getParameter("Persal_No");
oracle.jbo.ViewObject view = hremp.getRowSet().getViewObject();
view.setWhereClause("Persal_No = " + pno);
view.executeQuery();
Number Eid = (Number)hremp.getRowSet().getCurrentRow().getAttribute("id");
%>
<jbo:Row id="exitrow" datasource="ds" action="Create" >
<jbo:SetAttribute dataitem="*"/>
<jbo:SetAttribute dataitem="EmplId" value="<% Eid %>" />
</jbo:Row>
<%
try
%>
<jbo:PostChanges appid="package3.Package3Module"/>
<jbo:Commit appid="package3.Package3Module"/>
<p>Items Inserted Successfully!</p>
<%
catch(Exception exc)
out.println("<pre>");
exc.printStackTrace(new java.io.PrintWriter(out));
out.println("</pre>");
%>
<br>
Click here to return
</center>
</body>
<jbo:ReleasePageResources releasemode="Stateless"/>
</html>
Any help would be appreciated.

Hi Simon,
I have tried the declaration previously but
Jdeveloper says that a quoted value is needed.
I have attached the first few lines of the error message below :
java.lang.NullPointerException
void myproject3_html.ExitApplicationsView_InsertSubmit._jspService(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
void oracle.jsp.runtime.HttpJsp.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
void oracle.jsp.app.JspApplication.dispatchRequest(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
void oracle.jsp.JspServlet.doDispatch(oracle.jsp.app.JspRequestContext)
void oracle.jsp.JspServlet.internalService(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
void oracle.jsp.JspServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
void javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
void oracle.lite.web.JupServlet.service(oracle.lite.web.JupRequest, oracle.lite.web.JupResponse)
void oracle.lite.web.MimeServletHandler.handle(oracle.lite.web.JupApplication, java.lang.String, int, oracle.lite.web.JupRequest, oracle.lite.web.JupResponse)
void oracle.lite.web.JupApplication.service(oracle.lite.web.JupRequest, oracle.lite.web.JupResponse)
Hope it makes sense to you!
Regards
null

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              import javax.servlet.jsp.tagext.*;
              public class PageHeader extends BodyTagSupport {
              public int doStartTag() throws javax.servlet.jsp.JspException {
              return BodyTag.EVAL_BODY_TAG;
              public int doAfterBody() throws javax.servlet.jsp.JspException {
              return(SKIP_BODY);
              

              Are you using Jikes? See if this helps ...
              http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.jsp&item=6287&utag=
              Mike
              "Radik Usmanov" <[email protected]> wrote:
              >
              >An application use custom tags (JSP Tag extensions) in JSP page
              >included into another JSP page by means <jsp:include> instruction.
              >
              >After we had installed Service Pack 9 for Weblogic 5.1
              >browser's call of including JSP began show an error.
              >When I remove Weblogic510sp9.jar and Weblogic510sp9boot.jar
              >references from startWebLogic.cmd, the error diagnostic disappear.
              >
              >Is Service Pack Number 9 wrong?
              >==========================
              >Web browser diagnostic:
              >
              >Error 500--Internal Server Error
              >From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
              >10.5.1 500 Internal Server Error
              >The server encountered an unexpected condition which prevented it from
              >fulfilling
              >the request.
              >
              >==========================
              >Console diagnostic:
              >
              >Tue Jun 05 17:40:14 MSD 2001:<I> <WebAppServletContext-dscat> looking
              >for taglib
              >uri /exttags.tld as resource /WEB-INF/e
              >xttags.tld in Web Application root:
              >Tue Jun 05 17:40:15 MSD 2001:<I> <WebAppServletContext-dscat> Generated
              >java file:
              >C:\weblogic\dscat\WEB-INF\_tmp_war_ds
              >cat\jsp_servlet\_jsp\_opos\_catalog.java
              >Tue Jun 05 17:40:25 MSD 2001:<E> <WebAppServletContext-dscat> Servlet
              >failed with
              >Exception
              >java.lang.VerifyError: (class: jsp_servlet/_jsp/_opos/_catalog, method:
              >_jspService
              >signature: (Ljavax/servlet/http/Http
              >ServletRequest;Ljavax/servlet/http/HttpServletResponse;)V) Register 12
              >contains
              >wrong type
              > at java.lang.Class.newInstance0(Native Method)
              > at java.lang.Class.newInstance(Unknown Source)
              > at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:469)
              > at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java,
              >Compiled Code)
              > at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:442)
              > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:228)
              > at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:200)
              > at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:115)
              > at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:138)
              > at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:915)
              > at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:879)
              > at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:269)
              > at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:365)
              > at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:253)
              > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled
              >Code)
              >
              >==========================
              >Including JSP file:
              >...
              > <%@ include file="catalog_real.jsp" %>
              >...
              >
              >==========================
              >Included JSP file:
              >...
              > <%@ taglib uri="/exttags.tld" prefix="dscat" %>
              >...
              ><dscat:pageheader>Catalog header</dscat:pageheader>
              >...
              >==========================
              >Tag extansions library (WEB-INF/exttags.tld file):
              >
              ><?xml version="1.0" encoding="ISO-8859-1" ?>
              ><!DOCTYPE taglib
              > PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"
              >     "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
              >
              ><taglib>
              > <tlibversion>1.0</tlibversion>
              > <jspversion>1.1</jspversion>
              > <shortname>dscat</shortname>
              >
              > <tag>
              > <name>pageheader</name>
              > <tagclass>ru.ibs.xbcat.view.tag.PageHeader</tagclass>
              > </tag>
              >
              ></taglib>
              >==========================
              >Class PageHeader:
              >
              >package ru.ibs.xbcat.view.tag;
              >
              >import java.io.*;
              >import javax.servlet.jsp.*;
              >import javax.servlet.jsp.tagext.*;
              >
              >public class PageHeader extends BodyTagSupport {
              >
              > public int doStartTag() throws javax.servlet.jsp.JspException {
              > return BodyTag.EVAL_BODY_TAG;
              > }
              >
              > public int doAfterBody() throws javax.servlet.jsp.JspException {
              > ...
              > return(SKIP_BODY);
              > }
              >}
              >
              

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