Custom tag: Compilation error

I created a simple class for a simple custom tag. Whenever, I tried to compile, I got this error message:
package javax.servlet.jsp.tagext does not exist
Here's what I did:
javac -classpath c:\jakarta-tomcat-5.5.9\common\lib\servlet-api.jar com\app\mytags\errorTag.java
I'm using J2SE 5.0 SDK and Tomcat 5.5.9. In addition, I also included the servlet-api.jar in classpath.
Thanks so much,
Raja

Here's what I did:
javac -classpath
c:\jakarta-tomcat-5.5.9\common\lib\servlet-api.jar
com\app\mytags\errorTag.javaUnless you have put com/app/mytags/errorTag.java into that jar file, that isn't what you did. If you did, the compiler would complain that it couldn't find errorTag.java. Because you don't have a classpath entry where it might be.

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Jsp/custom tag compiler error (HttpServletResponse)

I originally posted with on Oracle's site but I am not getting any help.
Our server is running Oracle 9ias with JServ and Apache.
I have created a simple jsp that calls a custom tag but I am getting the following error:
Method addHeader(java.lang.String, java.lang.String) not found in interface javax.servlet.http.HttpServletResponse.
response.addHeader("Pragma", "No-cache");
^
Is something not setup correctly or installed where it should be?
the code for the custom tag is from the O'reilly book "JavaServer Pages." This works with JDeveloper on my computer but not on our server.
package info.wyoroad.jsp.tags.generic;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
* This class is a custom action for setting response headers
* that prevent the page from being cached by a browser or
* proxy server.
* @author Hans Bergsten, Gefion software <[email protected]>
* @version 1.0
public class NoCacheTag extends TagSupport {
* Sets "no cache" response headers
public int doEndTag() throws JspException {
HttpServletResponse response =
(HttpServletResponse) pageContext.getResponse();
response.addHeader("Pragma", "No-cache");
response.addHeader("Cache-Control", "no-cache");
response.addDateHeader("Expires", 1);
return EVAL_PAGE;
}

The jsp looks like:
<%@ page language="java" contentType="text/html;charset=WINDOWS-1252"%>
<%@ taglib uri="/WEB-INF/wylib.tld" prefix="info" %>
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=WINDOWS-1252">
<META NAME="GENERATOR" CONTENT="Oracle JDeveloper">
<info:NoCache />
<TITLE>
Test tag
</TITLE>
</HEAD>
<BODY>
<H2>Test the tag NoCache</h2> </P>
</BODY>
</HTML>

Custom Tag Library - error in IWS

My environment: Solaris 2.7, IWS4.1 SP3.
I currently try to run the Custom Tag Library example from IWS itself in
server_root/plugins/samples/servlets/taglibs. I follow the instructions to
config the IWS but fail to run the example. I turn on JSP debugging and
find the following error messages:
[12/Oct/2000:13:03:10] info (28609): Service(): uri=/jsps/test-tags.jsp
cgiScriptName=/jsps/test-tags.jsp token=null cached=false
[12/Oct/2000:13:03:10] info (28609): Internal Info: loading servlet
/jsps/test-tags.jsp
[12/Oct/2000:13:03:10] info (28609): JSP: This is a jsp 1.x file
[12/Oct/2000:13:03:10] info (28609): JSP: Before JSP1x compiler.compile,
servletName = /jsps/test-tags.jsp servletPath =
/u01/devin/docs/jsps/test-tags.jsp & dir = ../ClassCache
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Package name is:
jsps.jsps
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Class name is:
test0002dtags_jsp
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Java file name is:
/opt/netscape/server4/https-devin/config/../ClassCache/_jsps/_jsps/_test_000
2dtags_jsp.java
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Class file name is:
/opt/netscape/server4/https-devin/config/../ClassCache/_jsps/_jsps/_test_000
2dtags_jsp.class
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace:
Handling Directive: page {language=java}
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Accepted
org.apache.jasper.compiler.Parser$Directive at /jsps/test-tags.jsp(0,0)
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace:
Handling Directive: taglib {uri=/jsps/test-tags.jar, prefix=tt}
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Copying
/jsps/test-tags.jar into
/opt/netscape/server4/https-devin/config/../ClassCache//jsps/test-tags.jar
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Adding jar
/opt/netscape/server4/https-devin/config/../ClassCache//jsps/test-tags.jar
to my classpath
[12/Oct/2000:13:03:10] info (28609): Aborting JVM
[12/Oct/2000:13:03:10] info (28609): Exiting JVM due to: jvm_abort () and
jvm.exitOnAbort > 0
[12/Oct/2000:13:03:10] info (28609): JVM exit statistics:
AttachedThreads/Max=1/1, ActiveThreads/Max=1/1
[12/Oct/2000:13:03:11] info (28716): Initializing MMapSession Manager to
hold a maximum of (1000) sessions, each of which can store a maximum of
(100) values and no value size bigger than (1024) bytes, with a timeout
value of (1800) seconds
IWS keeps aborting JVM and one can see from the log that it abort jvm when
trying to :
[12/Oct/2000:13:03:10] info (28609): JSP1x Jasper Trace: Adding jar
/opt/netscape/server4/https-devin/config/../ClassCache//jsps/test-tags.jar
to my classpath
[12/Oct/2000:13:03:10] info (28609): Aborting JVM
I have tried another much simple Custome Tag Library example that only contain a simple tag that do output to page, but still getting the same error.

I had the same issue with WAS 6.1.0.2. I do not have a solution, but a workaround. I hope the workaround I have works for you too.
In my case, I have the TLD files deployed in a jar. So, the JSP 2.0 container is supposed to read those TLD files from the jar file. Since that was not happening, I extracted the TLD file from the jar file and placed it under my web project's WEB-INF folder.
I restarted my server and after that it worked.
Look at the IBM site to see if they have come up with a patch for WAS 6.0.
Hope this helps.
-Javier

Custom tag 'process' error

<< runtime failure in custom tag 'process' >>>
Trying to create a simple portlet but it keeps giving the following stack
trace.
Any clues ?
TIA
javax.servlet.ServletException: runtime failure in custom tag 'process'
at
jsp._portals._repository.__user_add_portlets._jspService(__user_add_portlets
.java:871)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:106)
at
weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImp
l.java:154)
at
com.beasys.commerce.foundation.flow.ServletDestinationHandler.handleDestinat
ion(ServletDestinationHandler.java:51)
at
com.beasys.commerce.foundation.flow.FlowManager.service(FlowManager.java:448
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:106)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:907)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:851)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
Manager.java:252)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:364)
at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:252)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:129)

There are a number possible reasons for the error "runtime failure in custom tag
'process'" for WLCS 3.11 and 3.2. You might check the following:
1) Make sure that WebLogic Server 5.10 SP6 is installed correctly and that
weblogic510sp6.jar and weblogic510sp6boot.jar are at the fronts of
weblogic_classpath and java_classpath, respectively.
2) Check to see if weblogic-tags-510.jar from WebLogic Server 5.10 SP6 is copied
to %weblogic_home%\lib\weblogic-tags-510.jar.
3) The WLPS database is corrupted for reason or another. Rerun the appropriate
database script at \weblogiccommerce\db\cloudscape\create-all-cloudscape.bat or
\weblogiccommerce\db\oracle\create-all-oracle.sql.
Ted
aamerG wrote:
<< runtime failure in custom tag 'process' >>>
Trying to create a simple portlet but it keeps giving the following stack
trace.
Any clues ?
TIA
javax.servlet.ServletException: runtime failure in custom tag 'process'
at
jsp._portals._repository.__user_add_portlets._jspService(__user_add_portlets
.java:871)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:106)
at
weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImp
l.java:154)
at
com.beasys.commerce.foundation.flow.ServletDestinationHandler.handleDestinat
ion(ServletDestinationHandler.java:51)
at
com.beasys.commerce.foundation.flow.FlowManager.service(FlowManager.java:448
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:106)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:907)
at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
l.java:851)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
Manager.java:252)
at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:364)
at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:252)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:129)

Custom Tag - Strange Error!!!

Hi All,
I've a custom tag.. and inside that I simply wrote up one
select query and following that I put one condition like this,
<cfif #qryCustomerSelect.cust_category# neq 5>
//Statements..
</cfif>
And I am getting one strange error stating
"qryCustomerSelec.cust_categoryt" is undefined... I tried dumping
the query and it worked well..
What I am doing wrong here?...
Any help is greatly appreciated...
Thanks

take away the octothorps and specify a row number.

Jdev 10G Custom Tag compilation problems

Hi,
I noticed that new tld's are added to "src/META-INF/."
When i compile my jsp to reference the tld it is not successful b/c it is looking for the tlds within the "public_html" or somewhere within it. I turned off tld and web.xml validation, but jdev 10G still validates the location of the tld. Is there way to configure Jdev to put the tld in another location?
I know i can work around this by building w/ ant or someother compiler external to Jdev, but would like to remedy this problem so i can use jdeveloper as it is.
hope someone can shed some light, i've been working on this all day long...
Thanks in advance,
Eugene

i am referenceing the tld via the web.xml alias entry. I found a work around where i copy the tld to somewhere in the public_html location of the project. I guess Jdeveloper doesn't look for the tld within META-INF which is embedded in the src directory structure of the project. For some reason, Jdeveloper doesn't look there for the TLD where it writes the tld to. it's interesting that jdeveloper doesn't look for the tld where it writes to. :)
from the server side, when i deploy, it works okay. but to get around the compilation problem, i have to copy the tld or softlink it to the META-INF location of the original tld.
I tried turning off web.xml, tld, and jsp validation of TLDs to get around this problem, but that doesn't seem to "turn it off."
How do you approach this problem? do you use ant or some other external build process?
thanks!

Error in running custom tag

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

Custom Tag Error with Weblogic SP9

          Hi
          I seem to be having a problem with a custom tag that I wrote. When I run the JSP
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          (on the JSP). The method called on this StringUtils class is valueOf(). This method
          in essence makes sure that the result of the expression is not null and then subsequently
          calls a toString() on the value. Note that if the value is null it simply returns
          an empty string.
          The problem is that when we go to service pack 9, this method is not called (StringUtils.valueOf()).
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          in the custom tag definintion (on the JSP) is null. Secondly, it will also error
          out when the setter method is called within the custom tag, if the object returned
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          Here's a sample usage of the tag:
          <wescombop:selectTag
          selectName="buildingNumber"
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          trimSelectedItem="true"
          selectTagDataName="buildingNumberDataAttribute" />
          Note: buildingJB.getBuildingNumber() returns BigDecimal
          Here's a snipett of the line generated java:
          * Without the service pack
          comwestfieldgrp_wescom_bop_view_tag_SelectTag_1.setSelectedItem(weblogic.utils.StringUtils.valueOf(buildingJB.getBuildingNumber()));
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          comwestfieldgrp_wescom_bop_view_tag_SelectTag_1.setSelectedItem(buildingJB.getBuildingNumber());
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          the code with service pack 9 will result in a compilation error, since buildingJB.getBuildingNumber()
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          Has anyone experience this problem before... Any help would be deeply appreciated.
          Thanks all.
          Niran


          Modify the <cewolf:param> tag.
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          <cewolf:producer id="report"> <cewolf:param name="type" value="all" > </cewolf:param>
          </cewolf:producer> </cewolf:data> </cewolf:chart>
          "Balakrishnan" <[email protected]> wrote:
          >
          >We are using cewolf charting library in weblogic 7.0. The charting library
          >is implemented
          >as custom jsp tag library module.
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          >
          >/reports/reportsView.jsp(108): no corresponding open tag for tag extension
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          >
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          > <cewolf:chart id="confchart" title="Reports" type="bar3d" yaxislabel="Time">
          > <cewolf:data>
          > <cewolf:producer id="report">
          > <cewolf:param name="type" value="all" /> (<-- Error occurs
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          > </cewolf:producer>
          > </cewolf:data>
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          >
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          >
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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.

Scriplet value in custom tag attribute doesn't compile

          Using a custom tag (a BodyTag extention) in a JSP. When WebLogic 6.0 tried to compile
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          since that is how WebLogic examples do it):
          <tags:SystemSearch locationName="<%= locationName %>"     customerName="<%= customerName
          %>" systemModelNumber="<%= systemModelNumber %>"     systemName="<%= systemName %>"
          locationID="<%= locationID %>" >
          Here's the line of the compile error from the WebLogic generated servlet:
          tagsSystemSearch0.setLocationID weblogic.utils.StringUtils.valueOf("<%= locationID
          //[ /SystemBrowse.jsp; Line: 66]
          Here's the related error message:
          D:\java\bea\wlserver6.0\config\darcon\applications\.wl_temp_do_not_delete\WEB-INF\_tmp_war_dev1_dev1_ROOT\jsp_servlet\_systembrowse.java:202:
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          probably occurred due to an error in /SystemBrowse.jsp line 66:


This is my tag code:
public class ErrorTag extends SimpleTagSupport {
     private static final long serialVersionUID = 1L;
     String val = null;
     private static final String DIV = "<div class=\"error\">ERROR</div>";
     private static final String INSERT_HERE = "ERROR";
     public void doTag() throws JspException {
          try{
               PageContext pageContext = (PageContext) getJspContext();
              JspWriter out = pageContext.getOut();
               if(val!=null){
                    String outputDiv = DIV.replace(INSERT_HERE, val);
                    out.println(outputDiv);
                    System.out.println("out.println -> ["+outputDiv+"]");
          }catch (Exception e) {
               System.out.println("doStartTag -> ["+e.getMessage()+"]");
     public void setValue(Object value){
          System.out.println("setValue -> ["+value+"]");
          if(value!=null && value instanceof String){
               String t = (String)value;
               if(t.trim().length()>3){
                    val = t;
     public Object getValue(){
          return val;
}I don't know waht to do. It doesn't want to eval EL expr.
It produces output:
*setValue -> [${errors.name}]*
*out.println -> [<div class="error">${errors.name}</div>]*
Edited by: Holod on 21.06.2009 15:12

Custom tag - unable to find setter method error

I see this compileException on IAS but not on BEA app server and iWS.
JSPProvider.processJSPFile(): jsp=searchContent.jsp, org.apache.jasper.compiler.CompileException
Unable to find setter method for attribute: input
The reason is because the custom tag has a setInput() that takes a String parameter while the getInput() returns an InputStream.
Should both get and set methods have the same type of parameters or is this a due to a bug in the app server ?

I see this compileException on IAS but not on BEA app
server and iWS.
JSPProvider.processJSPFile(): jsp=searchContent.jsp,
org.apache.jasper.compiler.CompileException
Unable to find setter method for attribute: input
The reason is because the custom tag has a setInput()
that takes a String parameter while the getInput()
returns an InputStream.
Should both get and set methods have the same type of
parameters or is this a due to a bug in the app server
I was only going off info from the original post. The error specifically states "Unable to find setter method for attribute: input" with a lower case i for the input attribute. You also specifcally stated "The reason is because the custom tag has a setInput()" with a capital I for the setInput method. This would most definitely cause the error you were receiving. That is unless you corrected this between your original post and your followup testing.
Cliff

Error Using Custom Tag

I am trying to use a custom tag but receive an error when I use it on a jsp page.
I have a tag handler class file, tag library descriptor file, specified the path to the .tld in the web.xml file.
The error implies that it cannot find the SimpleTag.class file, though I put it in the \webapps\examples\WEB-INF\classes\ directory.
Here is the error. Does anyone know what else it could be?
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
C:\jakarta-tomcat-4.0.1\work\localhost\examples\jsp\jspVisual\ch10\using_0005ftag$jsp.java:63: Class org.apache.SimpleTag not found.
SimpleTag_jspx_th_myFirstTag_SimpleTag_0 = new SimpleTag();

I could not see any obvious mistakes. But what you could try, in order to isolate the problem, is to bypass the web.xml. In other words access the TLD directly by doing this in your JSP
<%@ taglib uri="/WEB-INF/jsp/tag_library_descriptor.tld" prefix="myFirstTag" %>
if that does work then move the your TLD out of the jsp folder and into WEB-INF , then try
<%@ taglib uri="/WEB-INF/tag_library_descriptor.tld" prefix="myFirstTag" %>
Maybe someone else has better idea.

Illegal Access Error : using Custom Tags

Ive a very simple custom tag that try to print curent date on webpage but when I try to run it gives me following error
java.lang.IllegalAccessError: try to access class com.sun.xml.tree.ParentNode from class org.apache.jasper.compiler.TagLibraryInfoImpl
java.lang.IllegalAccessError: try to access class com.sun.xml.tree.ParentNode fr
om class org.apache.jasper.compiler.TagLibraryInfoImpl
Here is my jsp code
<html>
<head>
<%@ taglib uri="http://127.0.0.1:8080/examples/cdate.tld" prefix="examples"%>
</head>
<body>
The file is <examples:cdate/>
</body>
</html>
here goes cdate.tld code
<?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>examples</shortname>
<uri>http://www.mycompany.com/taglib</uri>
<info>An example tag library</info>
<tag>
<name>cdate</name>
     <tagclass>datex.DateTag</tagclass>
<info>Returns Current Date</info>
</tag>
</taglib>
here is web.xml entry
<taglib>
     <taglib-uri>
          http://127.0.0.1:8080/examples/WEB-INF/cdate.tld
     </taglib-uri>
     <taglib-location>
          /WEB-INF/cdate.tld
     </taglib-location>
</taglib>
here is the taghandler class code
package datex;
import java.io.*;
import java.util.Date;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class DateTag extends javax.servlet.jsp.tagext.TagSupport {
private String date;
public int doStartTag() throws JspException {
          StringBuffer html = new StringBuffer();
          date = new Date().toString();
     html.append("Current Date : ");
     html.append(date);
     try {
     pageContext.getOut().write(html.toString());
     } catch (IOException ioe) {
     throw new JspException(ioe.getMessage());
return EVAL_BODY_INCLUDE;
public void setDate(String s) {
this.date = s;
can any one plz hlp me

when i put the struts tags into the subforld such as /web-inf/tags , the jsp page tell me parsing tags error.
should i must put all this tags in the right fold?
i configure the url location in the web.xml as the route /web-inf/tags/....tld why invalid?

JSP with Custom tags error during verify.

Hi, i am new to JSP and Custom tag Library. The tools that i am using to deploy is "Sun Deploy Tool 8.2" with Sun Application Server. When i try to verify my JSP page i get this error message
tests.web.AllJSPsMustBeCompilable . I guess there is nothing wrong for my code, will it be path problem, because
i already check that i had included all the path that i need. Any idea what might cause this problem? Thank You.
Assertion:All the JSPs that are bundled inside a web application must be compilable using a J2EE compliant JSP compiler that does not have any proprietary or optional features in it.
For [ /tag/tag.war ]
Error: Some JSPs bundled inside [ tag ] could not be compiled. See details below.
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 12 in the jsp file: /currentTime.jsp
Here are my class file :
Custom lib java Class timetag.java
import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
import java.text.SimpleDateFormat;
public class timetag extends TagSupport{
     public int doEndTag() throws JspException
          SimpleDateFormat sdf;
          sdf = new SimpleDateFormat("HH:mm:ss");
          String time = sdf.format(new java.util.Date());
          try {
               pageContext.getOut().print(time);
          }catch(Exception ex)
               throw new JspException(ex.toString());
          return EVAL_PAGE;
Tag file *.tld : examplesTag.tld
<?xml version="1.0" encoding="ISO-8859-1" ?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
version="2.0">
<tlib-version>1.0</tlib-version>
<jsp-version>2.0</jsp-version>
<short-name>ExamplesTags</short-name>
<description>A set of example tag handlers.</description>
<tag>
<name>time</name>
<tag-class>timetag</tag-class>
</tag>
</taglib>
JSP File : currentTime.jsp
<?xml version="1.0" encoding="ISO-8859-1" ?>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ taglib prefix="examples" uri="/WEB-INF/examplesTags.tld" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Insert title here</title>
</head>
<body>
<examples:time /> //If i remove this it will be fine.
</body>
</html>

I am sorry for the double post because the format mess up..Please ignore this POST..Apologies again..Thanks

HTTP 500 Internel server error in Custom tag program on Weblogic 8.1

Dear sir,
Please attend my problem...
I face the Error 500 Internel server error when I rum the custom tag program on weblogic 8.1.
My program Structure is:
Program>Home.jsp
>WEB-INF>classes>mypack>MyTag.java, MyTag.class
>tlds>taglib.tld
>web.xml
Home.jsp:
<%@ taglib uri="/WEB-INF/tlds/taglib" prefix="Kumar" %>
<Kumar: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</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)
name=c;
public int doStartTag()
return EVAL_BODY_INCLUDE;
public int doEndTag()
try
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>/WEB-INF/tlds/taglib</taglib-uri>
<taglib-location>/WEB-INF/tlds/taglib.tld</taglib-location>
</taglib>
</web-app>
Allthough this program are run on NetBean6.1.In NetBean6.1, i am not specify the web.xml file.Please Help me..

With an [HTTP status code|http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html] of 500, the most helpful information for debugging the problem is usually in the server's log file. There should be a stack trace in the web or application server's log file that will contain the specific root cause of this. It is often a NullPointerException or ClassNotFoundException or other "common" exception.

Custom tag: Compilation error

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