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

Question

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
Build id: 20110615-0604

score 16 · Accepted Answer · answered Jul 06 '11 at 13:10

16

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.

answered Jul 06 '11 at 13:10

Stephan

41,764
65
238
329

This works for me only in situation when JSF implementation is on the project's classpath (API is not enough). Otherwise, error still exists. For details take a look at [this post](http://stackoverflow.com/a/25402146/1037316). – G. Demecki Aug 20 '14 at 10:18
This worked for me. So, why is this happening? Something wrong with the validator? – Durga Swaroop Jan 25 '16 at 07:18
@DurgaSwaroop I don't know. However, you can file an issue to Eclipse team. – Stephan Jan 25 '16 at 08:49

score 5 · Answer 2 · answered Jul 06 '11 at 09:59

5

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.

answered Jul 06 '11 at 09:59

BalusC

1,082,665
372
3,610
3,555

2

Actually I'm facing this problem : Description Resource NLS missing message: CANNOT_FIND_FACELET_TAGLIB in: org.eclipse.jst.jsf.core.validation.internal.facelet.messages index.xhtml (...) Facelet Validator – Stephan Jul 06 '11 at 10:02
1

That's a Glassfish/Eclipse specific issue. Try cleaning the project (*Project > Clean*). It's after all just an Eclipse project build warning. The code should run without trouble. Real JSF runtime errors are more of interest. – BalusC Jul 06 '11 at 10:06

Sarz · Answer 3 · 2016-10-17T05:12:44.773

3

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.

edited Oct 17 '16 at 05:12

answered Dec 30 '13 at 07:15

Sarz

1,970
4
23
43

1

Which jar did you add ? – Stephan Dec 30 '13 at 09:41
1

primefaces-[version].jar – Sarz Dec 30 '13 at 10:20

score 1 · Answer 4 · answered Jul 28 '11 at 10:45

1

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

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

answered Jul 28 '11 at 10:45

Dhananjay

734
1
9
14

1

-1: OP is using Facelets, not legacy JSP. Also, the problem has already been solved. – BalusC Jul 28 '11 at 12:37

score 0 · Answer 5 · answered Jan 29 '23 at 09:59

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.*

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

5 Answers5

Linked