I encounter a problem i don'k know to overcome...
I'm  kind of new in jelly, so i'm stack for a day (!!!) don't know how 
progress.
 i'm trying to use jelly:util tag in email-ext plugin, and I get null 
Exception.
 please help!!!

I'm trying to check if some image-uri exist, and if so - add it to email:
a short version of what i tried:

<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" 
xmlns:d="jelly:define" xmlns:util="jelly:util">

....
<util:available uri="some-uri">
               
 </util:available>

It took me a while to understand the problem is that I don't have util.jar 
so i downloaded it (commons-jelly-tags-util-1.1.1.jar) and try to place it 
in several locations:

(of course i restarted jenkins afterwards...)

   - %JENKINS_HOME%\plugins\email-ext\WEB-INF\lib (created the directory 
   lib) 
   - %JENKINS_HOME%\war\WEB-INF\lib 
   - %JENKINS_HOME%\email-templates

still - dont work :(

please help me - what am i doing wrong?

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