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Bug 318795

Summary:	JSTL 1.2 rejected with 8.0.0.M0, not with 7.1.4
Product:	[RT] Jetty	Reporter:	benson margulies <bimargulies>
Component:	server	Assignee:	Jan Bartel <janb>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	normal
Priority:	P3	CC:	janb, jetty-inbox
Version:	unspecified
Target Milestone:	7.1.x
Hardware:	PC
OS:	Mac OS X - Carbon (unsup.)
See Also:	https://bugs.eclipse.org/bugs/show_bug.cgi?id=318561
Whiteboard:

Description benson margulies

2010-07-03 14:31:06 EDT

Build Identifier: 8.0.0.M0

I have jstl 1.2 in my webapp's lib, and <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> in my jsp pages. it works fine in 7.1.4, but in 8.0 it claims that it can't find a taglib to go with the above URI.

Reproducible: Always

Steps to Reproduce:
1. make a webapp with jstl-1.2 in the webapp and a jsp page that calls for the 1.2 URI.
2. try to access it
3. error

Comment 1 Jan Bartel

2010-07-04 02:44:53 EDT

Hi Benson,

Jetty-8 uses the jsp 2.2 specification, and the RI from Glassfish. In the implementation of the TldScanner class, which handles finding tag files, there is explicit code that insists that the jstl jars are on the system classpath. 

Now, with jetty-8.0.0.M0, the jstl jars had been left out. With the fix for bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=318561, they're back onto jetty's system classpath, so they will be found there.

Note that with jetty-7, a) the jars were always on the system classpath and b) it used a totally different mechanism for discovering the tag files.

So in short, I think that there is nothing to fix for this issue, and that in the next release of jetty-8 the jstl jars will be available on the system classpath.

Comment 2 benson margulies

2010-07-04 09:15:01 EDT

Let me add one more factoid:

In 8.0.0.M0, http://java.sun.com/jstl/core (the old version) works.

Do I have access to add something to the Wiki here? It could sorely use a description of this situation.

Comment 3 Jan Bartel

2010-07-04 09:40:44 EDT

Benson, 

Yes, that probably does work. It works because the TldScanner.java class explicitly treats tags with the following URIs as special and coming only from the system classpath:

    static {
        systemUrisJsf.add("http://java.sun.com/jsf/core");
        systemUrisJsf.add("http://java.sun.com/jsf/html");
        systemUris.add("http://java.sun.com/jsp/jstl/core");
    }


Not sure about non-committer access to the eclipse wiki ... I'll try and add something about jstl & jsp & jetty-8 this week.

cheers
Jan

Comment 4 benson margulies

2010-07-04 10:40:01 EDT

That certainly explains it. Boy, was I ever confused. Thanks.