Re: JSTL c:if statements

[ashish shrivastava <as...@gmail.com>]

Look like you have got duplicate classes in your classpath ,one from *
javax.servlet.jsp.tagext.JspTag,javax.servlet.jsp.PageContext* pakage and
other from *org.apache.taglibs.standard.tag.el.core.IfTag,
javax.servlet.jsp.PageContext *pakage.



On 1/12/07, rotvang <bg...@yahoo.com> wrote:
>
>
> I have Tomcat version 5.0.28, and I am trying to use the JSTL tags in my
> webapp. I have placed the 2 required JSTL jar files, "standard.jar" and
> "jstl.jar" into my WEB-INF/lib directory.
>
> The bizarre thing is that some of the JSTL standard tags work, and some
> don't!  Even stranger, it doesn't break down by taglib--in other words,
> half
> of the "core" tags work, and half don't. Half of the "fmt" tags work, and
> half don't.
>
> Most importantly, <c:out  > works just fine, and with the EL, properly.
> However, none of the selection or conditional tags work: <c:if , <c:when,
> and <c:choose  tags all throw weird, indecypherable Jasper exceptions at
> JSP
> compilation time.
> Why would only some of the <c: tags throw exceptions, and not all of the
> <c:
> tags.
>
> Now, to rule out the possibility of syntax errors in my source, I
> copy/pasted a complete JSP example from Sun's own website, which
> ostensibly
> should work.  Even with Sun Microsystem's own JSPs, these conditional <c:
> tags throw the weird Jasper exception.   I've pasted an excerpt of the
> stack
> trace thrown by any occurrence of <c:if ....   in any of my JSPages:
>
>
> Jan 12, 2007 12:30:04 AM org.apache.jasper.compiler.Compiler generateClass
> SEVERE: Error compiling file: /C:/Documents and Settings/HR
> Systems/Desktop/jaka
> rta-tomcat-5.0.28/jakarta-tomcat-5.0.28
> /work/Catalina/localhost/OVWebApp//org/ap
> ache/jsp\Example1_jsp.java     [javac] Compiling 1 source file
>
> C:\Documents and Settings\HR
> Systems\Desktop\jakarta-tomcat-5.0.28\jakarta-tomca
>
> t-5.0.28\work\Catalina\localhost\OVWebApp\org\apache\jsp\Example1_jsp.java:152:
> _jspx_meth_c_out_1(javax.servlet.jsp.tagext.JspTag,
> javax.servlet.jsp.PageContext
> ) in org.apache.jsp.Example1_jsp cannot be applied to
> (org.apache.taglibs.standa
> rd.tag.el.core.IfTag,javax.servlet.jsp.PageContext)
>        if (_jspx_meth_c_out_1(_jspx_th_c_if_0, _jspx_page_context))
>
> --
> View this message in context:
> http://www.nabble.com/JSTL-c%3Aif--statements-tf2963977.html#a8292740
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>
>
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