Eclipse - Can't find facelet tag library for uri http://java.sun.com/jsf/html

In my index.xhtml , I have a namespace defined like this xmlns:h="http://java.sun.com/jsf/html". The server at this url indicates that the page cannot be found.

Do you know where the page has moved ?

Eclipse Info

Version: Indigo Release开发者_JAVA技巧
Build id: 20110615-0604

For solving this problem this is what I did :

     1. Close the eclipse project
     2. Open the eclipse project
     3. Right click on the project
     4. Click on Validate

   => The (false) warnings are gone.

The XML taglib namespace URI does not point to a real web resource or something. It just points to the same value as the <namespace> entry of the .taglib.xml file of the XML taglib in question in the runtime classpath, which in case of JSF taglibs (and lot others) just happens to be a HTTP URL. In case of Mojarra, you can find the declaration in the /com/sun/faces/metadata/taglib/html_basic.taglib.xml file of the jsf-impl.jar file.

If you're encountering problems with referencing JSF HTML tags, then the cause lies somewhere else.

Previous answers were useful to me. Here I provide an alternative way for solving this issue. I fixed this problem by adding the jar primefaces-[version].jar to the WEB-INF/lib directory.

<%@taglib   uri="http://java.sun.com/jsf/html" prefix="h"%>

jsf-api.jar and jsf-impl.jar jar in your lib.

Compare the Uri respective to the jsf version you are using.

. The real JSTL 1.0 taglib uses the URI *http://java.sun.com/jstl/core.*
. The real JSTL 1.1/1.2 taglib uses the URI *http://java.sun.com/jsp/jstl/core*.
. Facelets 1.x uses the URI *http://java.sun.com/jstl/core.*
. Facelets 2.x uses the URI *http://java.sun.com/jsp/jstl/core.*
. Facelets 2.2+ uses the URI *http://xmlns.jcp.org/jsp/jstl/core.*