Error in JSP Custom Tag Program

Hi Dear,
when I compile my JSP Custom tag program on weblogic Its give that Error..
Parsing of JSP File '/Home.jsp' failed: /Home.jsp(-1): cannot load TLD: weblogic.xml.dom.ChildCountException: missing child tagclass in tag
probably occurred due to an error in /Home.jsp line -1:
Tue Sep 09 18:46:56 GMT 2008
My Files are:
Home.jsp:
<%@ taglib uri="/WEB-INF/tlds/taglib.tld" prefix="neeraj" %>
<neeraj:hello name="Vijay">
It is a Tag Body<br>
</neeraj:hello>
taglib.tld:
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>1.2</jsp-version>
<uri>WEB-INF/tlds/taglib.tld</uri>
<tag>
<name>hello</name>
<tag-class>mypack.MyTag</tag-class>
<attribute>
<name>name</name>
<required>true</required>
</attribute>
</tag>
</taglib>
MyTag.java:
package mypack;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class MyTag extends TagSupport
String name;
public void setName(String c)
try
name=c;
catch(Exception e)
count=1;
public int doStartTag()
return EVAL_BODY_INCLUDE;
public int doAfterBody
JspWriter out=pageContext.getOut();
out.print("Good Night "+name);
catch(Exception e)
return EVAL_PAGE;
web.xml:
<web-app>
<welcome-file-list>
<welcome-file>/Home.jsp</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>taglib</taglib-uri>
<taglib-location>/WEB-INF/tlds/taglib.tld</taglib-location>
</taglib>
</web-app>
Please resolve my issue..

I had the same problem. In your .tld change tagclass to tag-class and bodycontent to body-content and that should do the trick. The names slightly changed for JSP spec 1.2.
          

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    Hi
    I am new in jsp?s custom tag development and trying to run it's example with jakarta-tomcat-4.1.30. I have hello.jsp
    <%@ taglib uri="/WEB-INF/mytaglib.tld" prefix="first" %>
    <HTML>
    <HEAD> <TITLE>hELLO tAG</TITLE></HEAD>
    <BODY bgcolor="#ffffcc"><B>My first tag prints</B>
    <first:hello/></HTML>
    and mytaglib.tld as
    <?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>1.2</jspversion>
    <shortname></shortname>
    <uri></uri>
    <info>A simple tag library for the example</info>
    <tag>
    <name>hello</name>
    <tagclass>HelloTag</tagclass>
    <bodycontent>empty</bodycontent>
    <info></info>
    </tag>
    </taglib>
    and HelloTag.java as
    import javax.servlet.jsp.JspException;
    import javax.servlet.jsp.PageContext;
    import javax.servlet.jsp.tagext.Tag;
    public class HelloTag implements Tag {
         private PageContext pageContext;
         private Tag parent;
         public HelloTag() {
              super();     }
         public void setPageContext(PageContext arg0) {
              this.pageContext = arg0;}
         public void setParent(Tag arg0) {
              this.parent = arg0;}
         public Tag getParent() {
              return parent;}
         public int doStartTag() throws JspException {
              try{
                   pageContext.getOut().print("This is my first Tag");
              }catch(Exception e){throw new JspException("Error);}
              return SKIP_PAGE;     }
         public int doEndTag() throws JspException {
              return SKIP_PAGE;}
         public void release() {     }
    I am getting following error
    type Exception report
    message
    description The server encountered an internal error () that prevented it from fulfilling this request.
    exception
    org.apache.jasper.JasperException: /hello.jsp(7,0) Unable to load class hello
         at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
         at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:428)
         at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:219)
         at org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:712)
         at org.apache.jasper.compiler.Parser.parseElements(Parser.java:804)
         at org.apache.jasper.compiler.Parser.parse(Parser.java:122)
         at org.apache.jasper.compiler.ParserController.parse(ParserController.java:199)
         at org.apache.jasper.compiler.ParserController.parse(ParserController.java:153)
         at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:227)
         at org.apache.jasper.compiler.Compiler.compile(Compiler.java:369)
         at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:473)
         at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:190)
         at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
         at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
    Can anyone help me in running this example.

    an uri is not an url,
    in your web.xml you should have something like
    <taglib>
    <taglib-uri>http://yourtaglib/taglib</taglib-uri>
    <taglib-location>/WEB-INF/yourtaglibtld</taglib-location>
    </taglib>
    that uri should be same as in the tld.file and same as in the <%@ taglib tag

  • Using gateway'd URLs in JSP custom tag attributes

    Hello,
    I am running Plumtree G6 using a gateway prefix to gateway Javascript from a remote server. I have recently discovered, thanks to people's help on the forum here, that in certain cases, you need to wrap a URL in a pt:url tag in order for Plumtree to recognize it as a URL that has to be gateway'd (i.e. a URL inside of a Javascript function).
    However, I have a custom tag that contains a contextPath attribute. This custom tag then includes other XML files that get included in the final page that is displayed. I am passing this value as my contextPath:
    <mytag:body sessionName="mysession" campusName="SampleCampus" contextPath="<pt:url pt:href='http://localhost:7021/application/scripts' xmlns:pt='http://www.plumtree.com/xmlschemas/ptui/'/>"/>
    However, in the resulting content that is created from this custom tag, the contextPath value is still set to <pt:url pt:href=......./>, and not the actual gateway'd URL. I would have thought that Plumtree would have recognized and gateway'd this URL before it got substituted in the custom tag.
    Does anyone have any thoughts on how to get around a problem like this? One thought I had was to get ahold of the gateway URL value and pass that value directly in my contextPath attribute. Is it possible to get that gateway value, or is there a better solution here?
    Thanks again for any help you can provide.

    Chris,
    I added your code, changed the portlet's web service to send a login token for this portlet, and was then getting some ClassNotFoundExceptions related to Axis classes. So, I went and added all of the jar files from the devkit's lib directory (i.e. plumtree\ptedk\5.3\devkit\WEB-INF\lib), recompiled, and those errors went away. But, now I see the following error:
    java.lang.NoSuchFieldError: RPC
         at com.plumtree.remote.prc.soap.QueryInterfaceAPISoapBindingStub.(QueryInterfaceAPISoapBindingStub.java:27)
         at com.plumtree.remote.prc.soap.QueryInterfaceAPIServiceLocator.getQueryInterfaceAPI(QueryInterfaceAPIServiceLocator.java:43)
         at com.plumtree.remote.prc.soap.QueryInterfaceProcedures.(QueryInterfaceProcedures.java:37)
         at com.plumtree.remote.prc.xp.XPRemoteSession.(XPRemoteSession.java:202)
         at com.plumtree.remote.prc.xp.XPRemoteSessionFactory.GetTokenContext(XPRemoteSessionFactory.java:80)
         at com.plumtree.remote.portlet.xp.XPPortletContext.getRemotePortalSession(XPPortletContext.java:261)
         at com.plumtree.remote.portlet.PortletContextWrapper.getRemotePortalSession(PortletContextWrapper.java:45)
         at jsp_servlet._collabrasuite.__riarooms._jspService(__riarooms.java:325)
         at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
         at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1006)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:417)
         at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6718)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
         at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3764)
         at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2644)
         at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
         at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
    I am using version 5.3 of the EDK, and running Plumtree Foundation G6. Have you ever seen an error like this before?
    Thanks again for all of your help.

  • JSP Custom tag not working correctly for multiple users

    I am doing some support work for an existing web system. When doing single user access (a custom tag is called within the JSP); the output of the Custom tag is fine. However, during multiple user access to the JSP, as I could see on the log files, 2 users access the custom tag at exactly the same time- the output of one of the users was incorrect. The custom tag btw, uses TreeMap, Stringbuffer and does not have a body, only attributes passed to it. It takes an input file and a Hashmap as input attributes and it sets a string in the page context which is later being used in the JSP. No error is logged, its just that the string produced(placed in the page context) is incorrect. This only happens when this tag is called at same time(when multiple users accessing the page) Has anyone encountered this problem? Is there a known pooling/thread problem with custom tags?

    in a servlet/jsp (a jsp is compiled into a servlet),
    the class atrributes are shared. only the
    variables declared in the doservice (doGet or doPost)
    method are threadsafe.
    post your jsp plzhere's the snippet of the jsp code:
    <%@ page language="java"
    errorPage="Error.jsp"
    autoFlush="false"
    buffer="128kb"
    import="java.text.*,
    java.math.BigDecimal,
    java.rmi.RemoteException,
    java.util.*,
    java.io.*,
    %>
    <%@ include file="Secure.jsp" %>
    // a set of request.getParameter are being called here
    HashMap myMap = new HashMap();
    myMap.put(xmlDPhoneNumber, dPhoneNumber);
    myMap.put(xmlDPhoneType, "D");
    myMap.put(xmlDPhoneExt, dExtension);
    myMap.put(xmlDPhoneDigits, dPhoneDigits);
    // other myMap putting of key values are called here
    %>
    <test:applyCustomerSearchValues id="resultXml" xmlTemplate="/xml/message/CustomerUpdateRequest.xml"
    xmlMap="<%= myMap %>" />
    <test:transformXMLString id="customerUpdateRequest"
    xmlString="<%= resultXml.toString() %>"
    xslFileName="/xsl/message/CustomerCreateRequest.xsl"
    paramMap="<%= PMap %>"/>
    now here's the thing: the xml produced by test:applyCustomerSearchValues is resultXml which is used in test:transformXMLString. I got no problem with the output of test:transformXMLString. I am sure that a phone number is being passed into the former as part of the HashMap key-value. However when test:applyCustomerSearchValues is called when 2 users access the jsp, it seems like the the first xml produced does not have the phone number in it - but the other has it. The xml is OK for both users, its just that the values of the HashMap do not seem to be passed correctly into the xml produced.
    --- here's the snippet of the log, the first httpWorkerThread-80-6 does not have the phone number, however the second one-httpWorkerThread-80-7 has the phone number. The first one should also have a phone number as in the start of the log, the number was listed, but as the system called the test:applyCustomerSearchValues tag, the number was not included. There are different phone numbers for the 2 users. The odd thing here is, the userID which is the 'LastUpdatedBy' element has been set correctly. The userID is being fetched from a session attribute while the phone number is fetched from a request parameter, both are being placed in the HashMap attribute passed to the custom tag.
    2007-06-05 10:55:41,954 DEBUG [httpWorkerThread-80-6] (?:?) - ApplyCustomerSearchValuesTag : String produced is :<Values><Customer>
    <Status>
         <CustomerType></CustomerType>
         <FirstContactDate>2007-06-05</FirstContactDate>
         <StatusFlags>
              <Fraud>N</Fraud>
              <BadCheck>N</BadCheck>
              <BadCredit>N</BadCredit>
              <DoNotMerge>N</DoNotMerge>
              <ARHoldRefundCheck>N</ARHoldRefundCheck>
         </StatusFlags>
         <LastUpdatedDateTime>2007-06-05 10:55:41</LastUpdatedDateTime>
         <LastUpdatedBy>5555</LastUpdatedBy>
         <OPAlertClass></OPAlertClass>
         <MailListStoreID></MailListStoreID>
         <OriginatingSource>CSA</OriginatingSource>
    </Status>
    <DPhone id="D">
         <DPhoneNumber></DPhoneNumber>
         <DPhoneDigits></DPhoneDigits>
         <DPhoneType></DPhoneType>
         <DExtension></DExtension>
         <DAreaCode></DAreaCode>
         <DPhoneCountryCode></DPhoneCountryCode>
    </DPhone>
    </Customer>
    </Values>
    2007-06-05 10:55:41,954 DEBUG [httpWorkerThread-80-7] (?:?) - ApplyCustomerSearchValuesTag : String produced is :<Values><Customer>
    <Status>
         <CustomerType>N</CustomerType>
         <FirstContactDate>2007-06-05</FirstContactDate>
         <StatusFlags>
              <Fraud>N</Fraud>
              <BadCheck>N</BadCheck>
              <BadCredit>N</BadCredit>
              <DoNotMerge>N</DoNotMerge>
              <ARHoldRefundCheck>N</ARHoldRefundCheck>
         </StatusFlags>
         <LastUpdatedDateTime>2007-06-05 10:55:41</LastUpdatedDateTime>
         <LastUpdatedBy>1840</LastUpdatedBy>
         <OPAlertClass></OPAlertClass>
         <MailListStoreID></MailListStoreID>
         <OriginatingSource>CSA</OriginatingSource>
    </Status>
    <DPhone id="D">
         <DPhoneNumber>(123) 123-4788</DPhoneNumber>
         <DPhoneDigits>1231234788</DPhoneDigits>
         <DPhoneType>D</DPhoneType>
         <DExtension></DExtension>
         <DAreaCode>123</DAreaCode>
         <DPhoneCountryCode>US</DPhoneCountryCode>
    </DPhone>
    </Customer>
    </Values>
    Message was edited by:
    Mutya

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