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Re: Is it possible to exclude commons-el as a dependency with the maven-jetty-plugin?

by David Yu-2 :: Rate this Message:

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I did mvn -X on a 6.1-SNAPSHOT plugin and it sure didnt have commons-el on the classpath.

After you checkout and build from head, run the plugin as mvn -X -o jetty:run , so that it will not fetch for the snapshot jars and use
your "freshly-built" 6.1-SNAPSHOT jar on your repository.

cheers

mraible wrote: 
I tried that and I still get the same error. Is it possible that anonymous
svn is time delayed? If you do "mvn jetty:run -X | tee mvn.log" and look at
mvn.log - you have no references to commons-el?

I don't know if having commons-el in my classpath is the cause of the
problem, but that's what the MyFaces mailing list seems to indicate. 

Matt


janb wrote:
  
Matt,

Hmmm, well that's definitely not right because the commons-el and ant jars
no
longer appear when I run mvn -X jetty:run. Everything is checked in at
this
end.

Could you try again, but use <version>6.1-SNAPSHOT</version> as the
version
number of the jetty plugin? No idea if that really makes any difference,
but 
it will definitely nail the version to the one you've built locally.

cheers
Jan

mraible wrote:
    
I checked out from SVN, ran "mvn" from the root directory and then
removed
<version>6.1.5</version> from my project. I assume this is what I need to
do
in order to get the latest plugin that I installed locally. 

Unfortunately, no dice - the error still occurs.

Caused by: javax.el.PropertyNotFoundException: ELResolver cannot handle a
null base Object with identifier 'errors'
        at com.sun.el.lang.ELSupport.throwUnhandled(ELSupport.java:63)
        at
com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:88)
        at
com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:206)
        at
org.apache.myfaces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:67)

Running mvn jetty:run-war -X > mvn.log and it seems that commons-el is
still
a dependency of the plugin:

[DEBUG] Adding managed depedendencies for
org.mortbay.jetty:maven-jetty-plugin[DEBUG]  
org.apache.maven:maven-plugin-tools-api:jar:2.0
[DEBUG]   junit:junit:jar:3.8.2[DEBUG]  
org.slf4j:jcl104-over-slf4j:jar:1.3.1
[DEBUG]   org.slf4j:slf4j-simple:jar:1.3.1
[DEBUG]   mx4j:mx4j:jar:3.0.1[DEBUG]   mx4j:mx4j-tools:jar:3.0.1
[DEBUG]   xerces:xercesImpl:jar:${xerces-version}[DEBUG]  
commons-el:commons-el:jar:1.0
[DEBUG]   ant:ant:jar:1.6.5 
[DEBUG]   javax.mail:mail:jar:1.4[DEBUG]  
javax.activation:activation:jar:1.1
[DEBUG] maven-jetty-plugin: using locally installed snapshot

Matt


janb wrote:
      
Matt,

I've just discovered some cruft in the jetty maven plugin pom that
included an unneeded dependency on commons-el! I've removed that
and tested the plugin and it seems to be working ok.

However, it would be ideal if you could do acheckout of jetty 
svn head and a build and see if it is working with your 
application now commons-el is out of the picture completely?

thanks
Jan

mraible wrote:
        
I'm using JDK 5 on OS X. For Tomcat, I tested it on version 6.0.14.

Matt


janb wrote:
          
Matt,

You must be using jdk1.4 because for jdk1.5 and up, jasper does not
require commons-el.

If in fact you are using jdk1.4 and therefore jsp-2.0, then you are
actually using 
jasper 5.5.15 from apache. I don't know whether those versions of
myfaces
etc are
supposed to work with jsp2.0, but if they are, then you might try and
verify that
you get the same error when running under tomcat 5.5.15.

regards
Jan

mraible wrote:
            
Actually, I spoke too soon - removing commons-el causes a
NoClassDefFoundError. However, the following seems to work fine on
Tomcat
6.0.14 (with MyFaces 1.2.0, Tomahawk 1.1.6 and Facelets 1.13):

<c:if test="${not empty errors}">
    <div class="error" id="errorMessages">
        <c:forEach var="error" items="${errors}">
             <c:url value= "
                alt="<fmt:message key="icon.warning"/>" class="icon"
/>
            <c:out value="${error}" escapeXml="false"/><br />
        </c:forEach>
    </div>
    <c:remove var="errors" scope="session"/>
</c:if>

Using maven-jetty-plugin 6.1.5, I get:

Caused by: javax.faces.el.EvaluationException: ELResolver cannot
handle
a
null base Object with identifier 'errors'

Any ideas?

Thanks,

Matt



mraible wrote:
              
I'm trying to solve the following issue and it appears that the
maven-jetty-plugin's dependency on commons-el is causing the
problem.

http://tinyurl.com/2vq9rf

Is there any way to exclude it in my plugin's configuration? I'm
using
version 6.1.5.

Thanks,

Matt

                
-- 
Jan Bartel, Webtide LLC | janb@... | http://www.webtide.com

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