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  1. September 27th, 2000, 12:13 PM #1
    yna54
    yna54 is offline Member
    Join Date
    Aug 2000
    Posts
    76

    Emergent, please help ???

    Could you please help me to find out this error :

    500 Internal Server Error
    /mymap5/jsp/browse.jsp:

    null
    java.lang.ClassCastException
    at ConceptBean.getConceptBeans(ConceptBean.java, Compiled Code)
    at jrun__jsp__browse2ejspf._jspService(jrun__jsp__browse2ejspf.java, Compiled Code)
    at allaire.jrun.jsp.HttpJSPServlet.service(HttpJSPServlet.java, Compiled Code)
    at allaire.jrun.servlet.JRunSE.service(JRunSE.java, Compiled Code)
    at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java, Compiled Code)
    at allaire.jrun.servlet.JRunNamedDispatcher.forward(JRunNamedDispatcher.java, Compiled Code)
    at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java, Compiled Code)
    at allaire.jrun.servlet.JRunSE.service(JRunSE.java, Compiled Code)
    at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java, Compiled Code)
    at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java, Compiled Code)
    at allaire.jrun.servlet.JRunSE.service(JRunSE.java, Compiled Code)
    at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java, Compiled Code)
    at allaire.jrun.http.WebEndpoint.run(WebEndpoint.java, Compiled Code)
    at allaire.jrun.ThreadPool.run(ThreadPool.java, Compiled Code)
    at allaire.jrun.WorkerThread.run(WorkerThread.java, Compiled Code)
    AND THIS IS : Browse.jsp :

    <%@ page import="ConceptBean" %>
    <jsp:useBean id="concept" class="ConceptBean" />
    <%
    ConceptBean[] concepts = concept.getConceptBeans();
    %>
    <html>
    <head>
    <title>Browse for a node</title>
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    </head>

    <body bgcolor="#FFFFFF">
    <form method="post" action="">
    <table width="10" border="0" cellspacing="0" cellpadding="0" align="center">
    <tr bgcolor="#FFFFCC">
    <td><font face="Verdana, Arial, Helvetica, sans-serif" color="#0000CC" size="2">Click
    on a node in this list then click on "select" to choose it.</font></td>
    </tr>
    <tr>
    <td>
    <div align="center">
    <select name="select" size="10">
    <%
    for (int i=0; i < concepts.length; i++) {
    concept = concepts[i];
    %>
    //<option value="<jsp:getProperty name="concept" property="id_number"/>">
    <jsp:getProperty name="concept" property="id_number"/>
    <jsp:getProperty name="concept" property="label"/>
    </option>
    <% } %>



    Thanks




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  2. September 27th, 2000, 12:47 PM #2
    kannanbalu
    kannanbalu is offline Member
    Join Date
    Jan 2000
    Location
    CA, USA
    Posts
    305

    Re: Emergent, please help ???

    Are you sure getConceptBeans() returns an array of ConceptBean?

    Kannan


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  3. September 27th, 2000, 03:14 PM #3
    laneh
    laneh is offline Junior Member
    Join Date
    Sep 2000
    Location
    Texas
    Posts
    22

    Re: Emergent, please help ???

    i don't do jsp programming.. but if it is close to java look at this line:

    for (int i=0; i < concepts.length; i++) {
    concept = concepts;

    is concept an array of some item or a singular item? concepts is an array as you have it.


    "There are no facts, only interpretations."
    -Friedrich Nietzsche
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