Why all classes in javax.servlet.jsp are abstract?

Hi all,
I have two questions about how the package was designed:
1.) why all the classes in the javax.servlet.jsp are abstract? what is the benefits?
2.) why almost all the methods in the class, such as jspWriter, are abstract too? And we can use these abstract methods in the way we use "concrete" methods?
3.) the same thing for HTTPServlet class at javax.servlet package.
Thanks in advance
yllx

Thanks for the message. In fact, you don't need to reply to the message if you don't have the answer.
I suspect that this has something to do with the abstract factor design pattern. It allows each container engine to implement the detail based on its own specification. I just need some body to put more details on that.
Since this happens quite often if the J2EE library, it's good for us to understand why they do this way, and how we can use it in our design.
yylx

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    Unfortunately, this will never happen because the implementation of this tag call somewhere Config.find(PageContext, String) that will call the Config.get(PageContext, String, int) method....
    A quick fix would be to replace the name of the servlet context attribute :
    servletContext.setAttribute(Config.FMT_LOCALIZATION_CONTEXT + ".application", context);
    Could someone tell me if it is a bug ? A bug of the Message tag implementation ? A bug in JSTL code ? Or am I doing all wrong ?
    Note : I'am using a servlet 2.4/JSP 2.0 compatible application with the jstl 1.2 core library and the jakarta standard 1.1.2 implementation library. I'am using Jetty to test my application with Jasper as the JSP compiler...

    This is an internal decision made by JSTL as to how it stores its configuration values.
    The reason they have given here for the suffixes being added is to treat the four scopes as different namespaces, so that there can be no confusion between them.
    I'd say your mistake is trying to set this value into the attribute space yourself rather than using one of the defined interfaces for JSTL to do it - in web.xml, or using the Config class.
    I guess that would make your code
    Config.set(servletContext, Config.FMT_LOCALIZATION_CONTEXT, context); Using their interface for setting this attribute adds the required suffix automatically.
    Cheers,
    evnafets

  • Javax.servlet.jsp.JspException: REP-51002: Bind to Reports Server reportserver fail??

    why i cant open my report in JDeveloper tools but i can open in report builder ????
    this is the error i get ...
    Reports Error Page
    Fri Oct 18 15:41:54 SGT 2002
    javax.servlet.jsp.JspException: REP-51002: Bind to Reports Server reportserver failed
    javax.servlet.jsp.JspException: REP-51002: Bind to Reports Server reportserver failed
         int oracle.reports.jsp.ReportTag.doStartTag()
              ReportTag.java:329
         void MyReport.jspService(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
              MyReport.jsp:4
         void oracle.jsp.runtime.HttpJsp.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
              HttpJsp.java:119
         void oracle.jsp.runtimev2.JspPageTable.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.String)
              JspPageTable.java:302
         void oracle.jsp.runtimev2.JspServlet.internalService(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
              JspServlet.java:407
         void oracle.jsp.runtimev2.JspServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
              JspServlet.java:328
         void javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
              HttpServlet.java:336
         void com.evermind.server.http.ServletRequestDispatcher.invoke(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
              ServletRequestDispatcher.java:684
         void com.evermind.server.http.ServletRequestDispatcher.forwardInternal(javax.servlet.ServletRequest, javax.servlet.http.HttpServletResponse)
              ServletRequestDispatcher.java:269
         boolean com.evermind.server.http.HttpRequestHandler.processRequest(com.evermind.server.ApplicationServerThread, com.evermind.server.http.EvermindHttpServletRequest, com.evermind.server.http.EvermindHttpServletResponse, java.io.InputStream, java.io.OutputStream, boolean)
              HttpRequestHandler.java:735
         void com.evermind.server.http.HttpRequestHandler.run(java.lang.Thread)
              HttpRequestHandler.java:243
         void com.evermind.util.ThreadPoolThread.run()
              ThreadPoolThread.java:64

    i still get the same error .. is it i need to set any environment variable or ... any setting ...??
    login Oracle Database
    user name = system
    password = manager
    services = dbhenry
    setting JSP Report
    Report Name = MyReport1
    Reports Server = reportserver
    Parameters = userid=system/manager@dbhenry
    the cource code below is my JSP report coding :
    <rw:report id="MyReport1" parameters="server=reportserver&userid=system/manager@dbhenry">
    <rw:objects id="objects">
    <?xml version="1.0" encoding="WINDOWS-1252" ?>
    <report name="MyReport1" DTDVersion="9.0.2.0.0">
    <xmlSettings xmlTag="MYREPORT1" xmlPrologType="text">
    <![CDATA[<?xml version="1.0" encoding="&Encoding"?>]]>
    </xmlSettings>
    <data>
    <dataSource name="Q_1">
    <select>
    <![CDATA[SELECT ALL HENRY.TEL, HENRY."ADD", HENRY.NAME, HENRY.ID
    FROM HENRY ]]>
    </select>

  • Javax.servlet.jsp.JspException: java.lang.NullPointerException

    hi,
    I try to view my presentation in jsp page.I use oracle jdeveloper 9.2.0.4 and bibeans 9.2.0.4 and once 1 month ago I did this taks (I view a presentation from bibdemo in jsp file)
    now I try to view my own presentation in jsp but I recieve error message in my own schema and bibdemo schema!!
    when I use windows xp I recieve following error :
    500 Internal Server Error
    javax.servlet.jsp.JspException: BIB-10310 An unknown exception occurred.
    BIB-10101 Handler failed to handle UserObject.
    BIB-14067 Persistable object threw exception during lookup on method setXMLAsString; component class oracle.dss.dataSource.client.QueryClient; exception oracle.dss.util.persistence.BIPersistenceException.
    BIB-9509 Oracle OLAP did not create cursor.
    oracle.olapi.data.source.UnmatchedInputsException
    BIB-9509 Oracle OLAP did not create cursor.
    oracle.olapi.data.source.UnmatchedInputsException
    oracle.olapi.data.source.UnmatchedInputsException
         at oracle.dss.addins.jspTags.PresentationTag.doStartTag(PresentationTag.java:194)
         at test.jspService(test.jsp:6)
         [test.jsp]
         at oracle.jsp.runtime.HttpJsp.service(HttpJsp.java:139)
         at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:349)
         at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
         at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:778)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:790)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
         at java.lang.Thread.run(Thread.java:534)
    and when I use windows NT I recieve following error :
    500 Internal Server Error
    javax.servlet.jsp.JspException: java.lang.NullPointerException
         at oracle.dss.addins.jspTags.RenderTag.doEndTag(RenderTag.java:212)
         at kafa_report__7._jspService(kafa_report_7.jsp:18)
         [kafa_report_7.jsp]
         at oracle.jsp.runtime.HttpJsp.service(HttpJsp.java:139)
         at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:349)
         at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
         at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:778)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:790)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
         at com.evermind[Oracle Application Server Containers for J2EE 10g (9.0.4.0.0)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
         at java.lang.Thread.run(Thread.java:534)
    I
    what the problem is ????????
    thanks in advance,

    hi,
    here the result :
    <?xml version="1.0" encoding="UTF-8" ?>
    - <BICheckConfig version="1.0.2.0">
    <Check key="JDEV_ORACLE_HOME" value="d:\jdev904" />
    <Check key="JAVA_HOME" value="C:\j2sdk1.4.2_01" />
    <Check key="JDeveloper version" value="9.0.4.0.1419" />
    <Check key="BI Beans release description" value="BI Beans 9.0.4 Production Release" />
    <Check key="BI Beans component number" value="9.0.4.23.0" />
    <Check key="BI Beans internal version" value="2.7.5.32" />
    <Check key="host" value="200.20.20.11" />
    <Check key="port" value="1521" />
    <Check key="sid" value="ora10g" />
    <Check key="user" value="dw_targetschema" />
    <Check key="Connecting to the database" value="Successful" />
    <Check key="JDBC driver version" value="9.2.0.4.0" />
    <Check key="JDBC JAR file location" value="D:\jdev904\jdev\lib\patches" />
    <Check key="Database version" value="10.1.0.2.0" />
    <Check key="OLAP Catalog version" value="10.1.0.2.0" />
    <Check key="OLAP AW Engine version" value="10.1.0.2.0" />
    <Check key="OLAP API Server version" value="10.1.0.2.0" />
    <Check key="BI Beans Catalog version" value="N/A; not installed in dw_targetschema" />
    <Check key="OLAP API JAR file version" value="9.2" />
    <Check key="OLAP API JAR file location" value="d:\jdev904\jdev\lib\ext" />
    <Check key="OLAP API Metadata Load" value="Successful" />
    <Check key="Number of metadata folders" value="2" />
    <Check key="Number of metadata measures" value="1" />
    <Check key="Number of metadata dimensions" value="3" />
    - <Check key="OLAP API Metadata">
    - <![CDATA[
    ==============================================================================
    Type      Name (S=Schema, C=Cube, M=Measure, D=Dimension)         Status   
    ========= ======================================================= ============
    Folder... ROOT
    Folder...   KAFA_COLLECTION
    Folder...   KAFA_COLLECTION2
    Measure..      SALARY                                             Unsuccessful
                   S=DW_TARGETSCHEMA, C=EMPLOYEMENT_CUBE, M=SALARY
                   Connection lost. Reconnect                         Successful
    Dimension      DEP_DIM                                            Successful
                   S=DW_TARGETSCHEMA, D=DEP_DIM
    Dimension      EMP_DIM                                            Successful
                   S=DW_TARGETSCHEMA, D=EMP_DIM
    Dimension      JOB_DIM                                            Successful
                   S=DW_TARGETSCHEMA, D=JOB_DIM
      ]]>
    </Check>
    - <Check key="StackTrace">
    - <![CDATA[
    ============================================================================
    Queries on the following measures or dimensions failed
    (S=Schema, C=Cube, M=Measure, D=Dimension)
    "SALARY" measure query with S=DW_TARGETSCHEMA, C=EMPLOYEMENT_CUBE, M=SALARY
    ============================================================================
    Exception stacktrace for "SALARY" measure query with S=DW_TARGETSCHEMA, C=EMPLOYEMENT_CUBE, M=SALARY
    ============================================================================
    1) BIB-9009 Oracle OLAP could not create cursor.
    oracle.express.idl.util.OlapiException: No more data to read from socket
    2) BIB-9009 Oracle OLAP could not create cursor.
    oracle.express.idl.util.OlapiException: No more data to read from socket
    1) BIB-9009 Oracle OLAP could not create cursor.
    oracle.express.idl.util.OlapiException: No more data to read from socket
    ============================================================================
    oracle.dss.dataSource.common.QueryRuntimeException: BIB-9009 Oracle OLAP could not create cursor.
    oracle.express.idl.util.OlapiException: No more data to read from socket
    java.lang.CloneNotSupportedException: BIB-9009 Oracle OLAP could not create cursor.
    oracle.express.idl.util.OlapiException: No more data to read from socket
         at oracle.dss.dataSource.common.Query.addQueryListener(Query.java:480)
         at BICheckConfig.runDefaultMeasureQuery(BICheckConfig.java:480)
         at BICheckConfig.printFolder(BICheckConfig.java:405)
         at BICheckConfig.printFolder(BICheckConfig.java:464)
         at BICheckConfig.checkConnection(BICheckConfig.java:350)
         at BICheckConfig.main(BICheckConfig.java:1348)
    2) BIB-9009 Oracle OLAP could not create cursor.
    oracle.express.idl.util.OlapiException: No more data to read from socket
    ============================================================================
    java.lang.CloneNotSupportedException: BIB-9009 Oracle OLAP could not create cursor.
    oracle.express.idl.util.OlapiException: No more data to read from socket
         at oracle.dss.dataSource.common.CubeCursor.clone(CubeCursor.java:387)
         at oracle.dss.dataSource.common.Query.addNewCubeCursorCopy(Query.java:2366)
         at oracle.dss.dataSource.common.Query.addQueryListener(Query.java:477)
         at BICheckConfig.runDefaultMeasureQuery(BICheckConfig.java:480)
         at BICheckConfig.printFolder(BICheckConfig.java:405)
         at BICheckConfig.printFolder(BICheckConfig.java:464)
         at BICheckConfig.checkConnection(BICheckConfig.java:350)
         at BICheckConfig.main(BICheckConfig.java:1348)
      ]]>
    </Check>
    </BICheckConfig>
    when I was transfering the collection from warehouse builder to database I recieve some error messages.
    but when I try to connect to database from bibeans every thing was ok so I thougth maybe it is because of that.
    and that about bibdemo why it doesn't work???
    it works before and I check it with bi_checkconfig
    thanks ,
    shima

  • "javax.servlet.jsp.JspException: null" When trying to use JSTL

    Hello,
    I am trying to use some taglibs from Apache but I am getting the following error when trying to access the relevant page:
    org.apache.jasper.JasperException: javax.servlet.jsp.JspException: null
         org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    root cause
    org.apache.jasper.JasperException: javax.servlet.jsp.JspException: null
         org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)
         org.apache.jsp.Questions_jsp._jspService(Questions_jsp.java:42)
         org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    root cause
    javax.servlet.ServletException: javax.servlet.jsp.JspException: null
         org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:854)
         org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
         org.apache.jsp.WEB_002dINF.EL_005f2_jsp._jspService(EL_005f2_jsp.java:171)
         org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)
         org.apache.jsp.Questions_jsp._jspService(Questions_jsp.java:42)
         org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    root cause
    java.lang.reflect.InvocationTargetException
         sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
         sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         java.lang.reflect.Method.invoke(Method.java:597)
         org.apache.taglibs.standard.tag.common.core.SetSupport.doEndTag(Unknown Source)
         org.apache.jsp.WEB_002dINF.EL_005f2_jsp._jspx_meth_c_set_0(EL_005f2_jsp.java:208)
         org.apache.jsp.WEB_002dINF.EL_005f2_jsp._jspService(EL_005f2_jsp.java:113)
         org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)
         org.apache.jsp.Questions_jsp._jspService(Questions_jsp.java:42)
         org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
         org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
         org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
         org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
         javax.servlet.http.HttpServlet.service(HttpServlet.java:802)My web.xml file is as follows:
    <?xml version="1.0" encoding="ISO-8859-1"?>
    <web-app xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee/web-app_2_4.xsd"
    version="2.4">
    <display-name>Jsp_Ex09 - JSP Standard Tag Library</display-name>
    <welcome-file-list>
    <welcome-file>welcome.jsp</welcome-file>
    </welcome-file-list>
    <jsp-config>
    <taglib>
    <taglib-uri>/simplequestions</taglib-uri>
    <taglib-location>/WEB-INF/tlds/simplefaq.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri>
    <taglib-location>/WEB-INF/tlds/c.tld</taglib-location>
    </taglib>
    <taglib>
    <taglib-uri>http://java.sun.com/jsp/jstl/fmt</taglib-uri>
    <taglib-location>/WEB-INF/tlds/fmt.tld</taglib-location>
    </taglib>
    <jsp-property-group>
    <url-pattern>*.jsp</url-pattern>
    <el-ignored>false</el-ignored>
    <scripting-invalid>true</scripting-invalid>
    </jsp-property-group>
    </jsp-config>
    </web-app>I have the standard and jstl jars in my lib directory and the relevant tlds files int the tlds directory. I am using Tomcat 5.5 and J2EE 5.
    The jsp in question is as follows:
    <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <%@taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
    <html>
    <head>
    <title>JSTL Q2</title>
    </head>
    <body>
    <h1>JSTL Question 2</h1>
    <h2>How do I use the JSTL?</h2>
    <jsp:useBean id="questions" class="com.apress.faq.Questions"
    scope="page">
    <jsp:setProperty name="questions" property="topic" value="EL"/>
    </jsp:useBean>
    <table border="1">
    <!-- the literal JSTL tag will be in left column of table -->
    <!-- the evaluated JSTL tag will be in right column of table -->
    <tr><th>tag</th><th>result</th></tr>
    <!-- this tag uses c:out to send the value of an EL to the response -->
    <tr><td><c:out value="${'${'}questions.topic}"/></td>
    <td><c:out value="${questions.topic}"/></td>
    </tr>
    <!-- this tag uses c:set to set the property of a JavaBean -->
    <c:set target="${questions}" property="topic" value="JSTL" />
    <tr>
    <td><c:set target="${'${'}questions}" property="topic"
    value="JSTL"/>
    </td>
    <td><c:out value="${questions.topic}"/></td>
    </tr>
    <!-- this tag uses c:if to determine whether to create another row -->
    <c:if test="${questions.topic == 'EL'}">
    <tr><td>This row will not be created</td>
    <td></td>
    </tr>
    </c:if>
    <c:if test="${questions.topic == 'JSTL'}">
    <tr><td>This row was created because the c:if tag result was true</td>
    <td></td>
    </tr>
    </c:if>
    </table>
    <h2>Multiplication table, 1 - 5</h2>
    <!-use the forEach tag to create a table -->
    <table border="1">
    <tr><td></td><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>
    <c:forEach var="i" begin="1" end="5">
    <tr><td><c:out value="${i}"/></td>
    <c:forEach var="j" begin="1" end="5">
    <td><c:out value="${i*j}"/></td>
    </c:forEach>
    </tr>
    </c:forEach>
    </table>
    <h2>Formatting numbers</h2
    <br><fmt:formatNumber value="23.456" type="number" /> results in
    <fmt:formatNumber value="23.456" type="number" />
    <br><fmt:formatNumber type="currency">23.456
    </fmt:formatNumber> results in <fmt:formatNumber
    type="currency">23.456</fmt:formatNumber>
    <br><fmt:formatNumber value=".23456" type="percent"/> results
    in <fmt:formatNumber value=".23456" type="percent"/>
    <br><fmt:formatNumber value=".23456" type="percent"
    minFractionDigits="2"/> results in <fmt:formatNumber
    value=".23456" type="percent" minFractionDigits="2"/>
    </body>
    </html>Can anyone spot the problem?
    Sorry for such a big post!

    ava.lang.reflect.InvocationTargetException
         sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
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