#Warning Using jstl , I have no idea how to fix it .

77 messages · Page 1 of 1 (latest)

rain bluff
#

This is the warning message that it says :
The TagExtraInfo class for "c:forEach" (org.apache.taglibs.standard.tei.ForEachTEI) could not be
instantiated .

image.png
vivid treeBOT
#

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rain bluff
# 
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Menu</title>
</head>
<body>
    <ul>
        <c:forEach var="item" items="${foodItems}">
            <li><c:out value="${item}"/></li>
        </c:forEach>
    </ul>
</body>
</html>```
#

this is the JSP File 👆

#

This is the Java File 👇

# 
import jakarta.servlet.RequestDispatcher;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;


@SuppressWarnings("serial")
@WebServlet("/FoodCart")
public class FoodCart extends HttpServlet {
    
    
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        
         //get the data from the database(model)
        String[] foodItems = {"Biryani","Pizza","Pasta","Butter_Chicken","Fried_Rice"};
        request.setAttribute("foodItems", foodItems);
        
        //redirect to a different page(view)
        RequestDispatcher dispatcher = request.getRequestDispatcher("show-food.jsp");
        dispatcher.forward(request,response);
    }

}```
clever kite
#

You are using Jakarta EE

clever kite
#

Also make sure your web.xml is using Jakarta EE specs/schema

rain bluff
rain bluff
clever kite
#

Jakarta EE works, you just need different URLs in the JSP files

#

Java EE has been replaced by Jakarta EE

rain bluff
#

i'll show what error i get when i use Jakarta URI

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so can i use this ? :
http://jakarta.ee/jstl/core

clever kite
#

yes

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something like that

rain bluff
#

now look at the error , idk what it means , but ig we cant use it right ?

clever kite
#

ok that URL isn't correct

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maybe the old one was fine

rain bluff
clever kite
#

Can you show your web.xmk?

#

web.xml*

rain bluff
#

I haven't done anything in my web.xml , but this is how it looks :

image.png
clever kite
#

hm, that looks correct

rain bluff
#

I have been trying to search for a fix for this for over 8 hours now , but I am just exhausted at this point . I don't know what should i do 🥺

#

it's not even a big code , it's just a small tag , and i am stuck here

clever kite
rain bluff
clever kite
rain bluff
clever kite
#

set that to ignore

rain bluff
clever kite
rain bluff
#

Windows -> Prefernces -> JSP -> Validation

clever kite
#

try right-clicking on the project and selecting properties

#

Does that also have JSP > Validation?

rain bluff
#

i only see JSP Fragment

#

you mean this ?

clever kite
# rain bluff

or click the configure project specific settings link there

rain bluff
clever kite
#

or by searching for Validation

rain bluff
#

Validation is there , but not JSP Validation

clever kite
#

Is there any other JSP option?

clever kite
#

Also which Eclipse version are you using?

rain bluff
rain bluff
clever kite
clever kite
rain bluff
clever kite
#

if you delete the c:forEach and add it again, the error still appears, right?

rain bluff
#

i deleted and re-typed it , now it dosen't show error

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But there isn't output as well 😭

clever kite
#

Is there a stack trace?

rain bluff
#

I will be switching off for now , i will come back online later , If you find any fix later , please let me know . Thank you for the help so far

vivid treeBOT
vivid treeBOT
#

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vivid treeBOT
#

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clever kite
#

something like

An uncaught exception occured in thread xyz: java.lang.NullPointerException
  at com.example.SomeClass.someMethod (SomeClass.java:1337ö
  ...
vivid treeBOT
#

💤 Post marked as dormant

This post has been inactive for over 300 minutes, thus, it has been archived.
If your question was not answered yet, feel free to re-open this post or create a new one.
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Warning: abusing this will result in moderative actions taken against you.

rain bluff
#

i thank you for your help 🙂

vivid treeBOT
# rain bluff i thank you for your help 🙂

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