How to install JSTL The absolute uri http java sun com jstl core cannot be resolved

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I don t know what I ve done incorrectly  but I can t include JSTL  I have jstl-1 2 jar  but unfortunately I get exception    org apache jasper JasperException  The absolute uri  http   java sun com jstl core cannot be resolved in either web xml or the jar files deployed with this application     at org apache jasper compiler DefaultErrorHandler jspError DefaultErrorHandler java 51      at org apache jasper compiler ErrorDispatcher dispatch ErrorDispatcher java 409      at org apache jasper compiler ErrorDispatcher jspError ErrorDispatcher java 116      at org apache jasper compiler TagLibraryInfoImpl generateTLDLocation TagLibraryInfoImpl java 315      at org apache jasper compiler TagLibraryInfoImpl  lt init gt  TagLibraryInfoImpl java 148      at org apache jasper compiler Parser parseTaglibDirective Parser java 429      at org apache jasper compiler Parser parseDirective Parser java 492      at org apache jasper compiler Parser parseElements Parser java 1439      at org apache jasper compiler Parser parse Parser java 137      at org apache jasper compiler ParserController doParse ParserController java 255      at org apache jasper compiler ParserController parse ParserController java 103      at org apache jasper compiler Compiler generateJava Compiler java 170      at org apache jasper compiler Compiler compile Compiler java 332      at org apache jasper compiler Compiler compile Compiler java 312      at org apache jasper compiler Compiler compile Compiler java 299      at org apache jasper JspCompilationContext compile JspCompilationContext java 586      at org apache jasper servlet JspServletWrapper service JspServletWrapper java 317      at org apache jasper servlet JspServlet serviceJspFile JspServlet java 342      at org apache jasper servlet JspServlet service JspServlet java 267      at javax servlet http HttpServlet service HttpServlet java 717      at org apache catalina core ApplicationFilterChain internalDoFilter ApplicationFilterChain java 290      at org apache catalina core ApplicationFilterChain doFilter ApplicationFilterChain java 206      at org apache catalina core StandardWrapperValve invoke StandardWrapperValve java 233      at org apache catalina core StandardContextValve invoke StandardContextValve java 191      at org apache catalina core StandardHostValve invoke StandardHostValve java 128      at org apache catalina valves ErrorReportValve invoke ErrorReportValve java 102      at org apache catalina core StandardEngineValve invoke StandardEngineValve java 109      at org apache catalina connector CoyoteAdapter service CoyoteAdapter java 293      at org apache coyote http11 Http11Processor process Http11Processor java 849      at org apache coyote http11 Http11Protocol Http11ConnectionHandler process Http11Protocol java 583      at org apache tomcat util net JIoEndpoint Worker run JIoEndpoint java 454      at java lang Thread run Thread java 619    I have    pom xml   lt dependency gt     lt groupId gt javax servlet lt  groupId gt     lt artifactId gt servlet-api lt  artifactId gt     lt version gt 2 5 lt  version gt     lt scope gt provided lt  scope gt   lt  dependency gt   lt dependency gt     lt groupId gt javax servlet jsp lt  groupId gt     lt artifactId gt jsp-api lt  artifactId gt     lt version gt 2 1 lt  version gt     lt scope gt provided lt  scope gt   lt  dependency gt    lt dependency gt     lt groupId gt taglibs lt  groupId gt     lt artifactId gt standard lt  artifactId gt     lt version gt 1 1 2 lt  version gt   lt  dependency gt   lt dependency gt     lt groupId gt javax servlet lt  groupId gt     lt artifactId gt jstl lt  artifactId gt     lt version gt 1 2 lt  version gt   lt  dependency gt   web xml   lt web-app 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    version  2 5  gt   index jsp   lt    taglib uri  http   java sun com jstl core  prefix  c    gt   lt html gt    lt head gt  lt  head gt   lt body gt  lt  body gt   lt  html gt

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I had the same issue   I am using eclipse  just in case others experience the same issue  In eclipse double click the tomcat server  stop the server untick the  quot server modules without publishing quot  start the server

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I found another reason for this type of error  in my case  someone set the conf catalina properties setting tomcat util scan StandardJarScanFilter jarsToSkip property to   to avoid log warning messages  thereby skipping the necessary scan by Tomcat   Changing this back to the Tomcat default and adding an appropriate list of jars to skip  not including jstl-1 2 or spring-webmvc  solved the problem

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All of the answers in this question helped me but I thought I d add some additional information for posterity   It turned out that I had a test dependency on gwt-test-utils which brought in the gwt-dev package   Unfortunately gwt-dev contains a full copy of Jetty  JSP  JSTL  etc  which was ahead of the proper packages on the classpath   So even though I had proper dependencies on the JSTL 1 2 it would loading the 1 0 version internal to gwt-dev   Grumble   The solution for me was to not run with test scope so I don t pick up the gwt-test-utils package at runtime   Removing the gwt-dev package from the classpath in some other manner would also have fixed the problem

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I had disabled MAVEN and Spring tools completely  And I had to add the following jar s for making my environment work right    spring-aop-4 0 3 RELEASE jar spring-beans-4 0 3 RELEASE jar  tough to find this fix  other org springframework lt 3 versions  just did not work  spring-context-4 0 3 RELEASE jar spring-core-4 0 3 RELEASE jar spring-expression-4 0 3 RELEASE jar spring-web-4 0 3 RELEASE jar spring-webmvc-4 0 3 RELEASE jar jstl-1 2 jar   The worst of all was jstl-api-1 2 jar and javax-servlet jsp jst-api-1 2 1 jar  They just did not work    jstl-1 2 jar worked well

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This workedfor me        lt groupId gt jstl lt  groupId gt       lt artifactId gt jstl lt  artifactId gt       lt version gt 1 2 lt  version gt

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I have mentioned that the Maven dependency in the pom xml is wrong  It should be       lt dependency gt           lt groupId gt jstl lt  groupId gt           lt artifactId gt jstl lt  artifactId gt           lt version gt 1 2 lt  version gt       lt  dependency gt

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Resolved similar problem in IBM RAD 7 5 by selecting    Projects properties Project Facets JSTL check-box

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Add the jstl-1 2 jar into the tomcat lib folder   With this  your dependency error will be fixed again

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I just wanted to add the fix I found for this issue  I m not sure why this worked  I had the correct version of jstl  1 2  and also the correct version of servlet-api  2 5    lt dependency gt       lt groupId gt javax servlet lt  groupId gt       lt artifactId gt servlet-api lt  artifactId gt       lt version gt 2 5 lt  version gt       lt scope gt provided lt  scope gt   lt  dependency gt   lt dependency gt       lt groupId gt javax servlet lt  groupId gt       lt artifactId gt jstl lt  artifactId gt       lt version gt 1 2 lt  version gt   lt  dependency gt    I also had the correct address in my page as suggested in this thread  which is    lt    taglib prefix  c  uri  http   java sun com jsp jstl core    gt    What fixed this issue for me was removing the scope tag from my xml file in the pom for my jstl 1 2 dependency  Again not sure why that fixed it but just in case someone is doing the spring with JPA and Hibernate tutorial on pluralsight and has their pom setup this way  try removing the scope tag and see if that fixes it  Like I said it worked for me

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Just had similar problem in Eclipse fixed with   rightclick on project- gt Properties- gt Deployment Assembly- gt add Maven Dependencies   something kicked it out before   while I was editing my pom xml  I had all needed jar files  taglib uri and web xml was ok

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An answer for the year 2021 The question is still very popular  but all the answers are seriously outdated  All Java EE components were split off into various Jakarta projects and JSTL is no different  So here are the correct Maven dependencies as of today   lt dependency gt       lt groupId gt jakarta servlet jsp jstl lt  groupId gt       lt artifactId gt jakarta servlet jsp jstl-api lt  artifactId gt       lt version gt 1 2 7 lt  version gt   lt  dependency gt   lt dependency gt       lt groupId gt org glassfish web lt  groupId gt       lt artifactId gt jakarta servlet jsp jstl lt  artifactId gt       lt version gt 1 2 6 lt  version gt   lt  dependency gt   Yes  the versions and groupIds do not match  but that s a quirk of the project s current state

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BalusC is completely right  but If you still encounter this exception  it means that something you have done wrong  The most important information you will find is on the SO JSTL Tag Info page    Basically this is a summary of what you need to do to deal with this exception    Check the servlet version in web xml   lt web-app version  2 5  gt  Check if JSTL version is supported for this servlet version  Servlet version 2 5 uses JSTL 1 2 or Servlet version 2 4 uses JSTL 1 1 Your servlet container must have the appropriate library  or you must include it manually in your application  For example  JSTL 1 2 requires jstl-1 2 jar   What to do with Tomcat 5 or 6    You need to include appropriate jar s  into your WEB-INF lib directory  it will work only for your application  or to the tomcat lib  will work globally for all applications    The last thing is a taglib in your jsp files  For JSTL 1 2 correct one is this    lt    taglib prefix  c  uri  http   java sun com jsp jstl core    gt

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org apache jasper JasperException  The absolute uri  http   java sun com jstl core cannot be resolved in either web xml or the jar files deployed with this application  That URI is for JSTL 1 0  but you re actually using JSTL 1 2 which uses URIs with an additional  jsp path  because JSTL  who invented EL expressions  was since version 1 1 integrated as part of JSP in order to share reuse the EL logic in plain JSP too   So  fix the taglib URI accordingly based on JSTL documentation   lt    taglib prefix  quot c quot  uri  quot http   java sun com jsp jstl core quot    gt   Further you need to make absolutely sure that you do not throw multiple different versioned JSTL JAR files together into the runtime classpath  This is a pretty common mistake among Tomcat users  The problem with Tomcat is that it does not offer JSTL out the box and thus you have to manually install it  This is not necessary in normal Jakarta EE servers  See also What exactly is Java EE  In your specific case  your pom xml basically tells you that you have jstl-1 2 jar and standard-1 1 2 jar together  This is wrong  You re basically mixing JSTL 1 2 API impl from Oracle with JSTL 1 1 impl from Apache  You should stick to only one JSTL implementation  Installing JSTL on Tomcat 10  In case you re already on Tomcat 10 or newer  the first Jakartified version  with jakarta   package instead of javax   package   use JSTL 2 0 via this sole dependency   lt dependency gt       lt groupId gt org glassfish web lt  groupId gt       lt artifactId gt jakarta servlet jsp jstl lt  artifactId gt       lt version gt 2 0 0 lt  version gt   lt  dependency gt   Non-Maven users can achieve the same by dropping the following two physical files in  WEB-INF lib folder of the web application project  do absolutely not drop standard  jar or any loose  tld files in there  remove them if necessary    jakarta servlet jsp jstl-2 0 0 jar  this is the JSTL 2 0 impl of EE4J  jakarta servlet jsp jstl-api-2 0 0 jar  this is the JSTL 2 0 API   Installing JSTL on Tomcat 9- In case you re not on Tomcat 10 yet  but still on Tomcat 9 or older  use JSTL 1 2 via this sole dependency   lt dependency gt       lt groupId gt org glassfish web lt  groupId gt       lt artifactId gt jakarta servlet jsp jstl lt  artifactId gt       lt version gt 1 2 6 lt  version gt   lt  dependency gt   Non-Maven users can achieve the same by dropping the following two physical files in  WEB-INF lib folder of the web application project  do absolutely not drop standard  jar or any loose  tld files in there  remove them if necessary    jakarta servlet jsp jstl-1 2 6 jar  this is the JSTL 1 2 impl of EE4J  jakarta servlet jsp jstl-api-1 2 7 jar  this is the JSTL 1 2 API   Installing JSTL on normal JEE server In case you re actually using a normal Jakarta EE server such as WildFly  Payara  etc instead of a barebones servletcontainer such as Tomcat  Jetty  etc  then you don t need to explicitly install JSTL at all  Normal Jakarta EE servers already provide JSTL out the box  In other words  you don t need to add JSTL to pom xml nor to drop any JAR TLD files in webapp  Solely the provided scoped Jakarta EE coordinate is sufficient   lt dependency gt       lt groupId gt jakarta platform lt  groupId gt       lt artifactId gt jakarta jakartaee-api lt  artifactId gt       lt version gt  lt  -- 9 0 0  8 0 0  etc depending on your server -- gt  lt  version gt       lt scope gt provided lt  scope gt   lt  dependency gt   Make sure web xml version is right Further you should also make sure that your web xml is declared conform at least Servlet 2 4 and thus not as Servlet 2 3 or older  Otherwise EL expressions inside JSTL tags would in turn fail to work  Pick the highest version matching your target container and make sure that you don t have a  lt  DOCTYPE gt  anywhere in your web xml  Here s a Servlet 5 0  Tomcat 10  compatible example   lt  xml version  quot 1 0 quot  encoding  quot UTF-8 quot   gt   lt web-app      xmlns  quot https   jakarta ee xml ns jakartaee quot      xmlns xsi  quot http   www w3 org 2001 XMLSchema-instance quot      xsi schemaLocation  quot https   jakarta ee xml ns jakartaee https   jakarta ee xml ns jakartaee web-app 5 0 xsd quot      version  quot 5 0 quot  gt        lt  -- Config here  -- gt    lt  web-app gt   And here s a Servlet 4 0  Tomcat 9  compatible example   lt  xml version  quot 1 0 quot  encoding  quot UTF-8 quot   gt   lt web-app     xmlns  quot http   xmlns jcp org xml ns javaee quot      xmlns xsi  quot http   www w3 org 2001 XMLSchema-instance quot      xsi schemaLocation  quot http   xmlns jcp org xml ns javaee http   xmlns jcp org xml ns javaee web-app 4 0 xsd quot      version  quot 4 0 quot  gt        lt  -- Config here  -- gt    lt  web-app gt   See also   JSTL core taglib documentation  for the right taglib URIs  EL expressions not evaluated in JSP How to configure pom xml for Tomcat 10  or Tomcat 9-

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If you use Spring boot  consider to remove server tomcat additional-tld-skip-patterns   jar from Application properties if there is any

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Download jstl-1 2 jar Add this directive to your page   lt    taglib uri  http   java sun com jsp jstl core  prefix  c    gt  Paste the JAR file in your WEB-INF lib folder  This should work   It worked for me

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jstl-1 2 jar -- gt   lt    taglib prefix  c  uri  http   java sun com jsp jstl core    gt  jstl-1 1 jar -- gt   lt    taglib prefix  c  uri  http   java sun com jstl core    gt    also please check for the dependency jars that you have added javax servlet jar and javax servlet jsp jstl-1 2 1 jar or not in your WEB-INF lib folder  In my case these two solved the issue

[jsp] How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved

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