cannot find the tag library descriptor for http //java.sun.com/jsp/jstl/core

cannot find the tag library descriptor for http //java.sun.com/jsp/jstl/core

Problem :

We come across this common exception when we are using jsp's with tag libraries.

Exception I Encountered Was :

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cannot find the tag library descriptor for http //java.sun.com/jsp/jstl/core

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Solution :

This exception was caused when i did not add the jstl.jar to my class path. I was using maven, so had to include it in my dependency and update web.xml file as explained below.

Example :

- General class path : 

          configure the exact path in the Environment Variable for classpath 

- Maven Dependency : 

          <dependency>
               <groupId>jstl</groupId>
               <artifactId>jstl</artifactId>
               <version>1.2</version>
               <scope>compile</scope>
          </dependency>
          <dependency>
               <groupId>taglibs</groupId>
               <artifactId>standard</artifactId>
               <version>1.1.2</version>
               <scope>compile</scope>
          </dependency>

- Web.xml :

          <?xml version="1.0" encoding="UTF-8"?>
          <web-app version="2.5" 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 
          http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

Similar Exception :

     

- cannot find the tag library descriptor for http //java.sun.com/jsp/jstl/core