Web-Inf, JSPs and useBean

Question

I have the following web structure

Root
- ----- Web-Inf
- --------- (classes, web.xml, etc...)
- ----- Members area (a normal folder)
- --------- FileB.jsp
- ----- FileA.jsp

and I am having this really weird problem, both FileA and B.jsp have in their first line

<jsp:useBean id="User" scope="session" class="kcc.Users"/>

the FilaA.jsp works fine, but the FileB.jsp cant seem to find the class with the error

exception

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: kcc/Users
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:491)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:401)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

javax.servlet.ServletException: java.lang.NoClassDefFoundError: kcc/Users
    org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:862)
    org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
    org.apache.jsp.index_jsp._jspService(index_jsp.java:325)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

How can i solve this, thank.

hmm, apparently i have to place the jsps in the root directory tow rok, like FileA.jsp, but this is very limiting, i found this question in a few places on the internet but none give an working solution — Yehia A.Salam, Jan 06 '13 at 11:18
This should not form a problem. Which servletcontainer are you using? Stacktrace suggests Tomcat, but which version? — BalusC, Jan 06 '13 at 16:14
@BalusC tomcat6, i added a copy of Web-inf in the subdirectory, and it worked, but thats not the right way to do things — Yehia A.Salam, Jan 06 '13 at 17:40
does that have something to do with the ProxyPass directive, because i've used the above structure under a mod_jk and it worked fine — Yehia A.Salam, Jan 13 '13 at 00:34
to shed more light on this, it looks like the WEB-INF folder is not in my classpath anymore when accessing jsp from subdirectories, compare http://www.localkicks.com/cpx/test.jsp and http://www.localkicks.com/test.jsp — Yehia A.Salam, Jan 13 '13 at 21:39
@YehiaA.Salam If WEB-INF is not in the classpath, how FileA.jsp is finding that class? The situation you explained should never happen. It would be easier to find a solution if you can share the project structure with actual file names. — Ravindra Gullapalli, Jan 19 '13 at 19:43

score 0 · Answer 1 · answered Jan 14 '13 at 15:36

0

This is the stacktrace of a welcome-file and has nothing to do with FileB.jsp.

answered Jan 14 '13 at 15:36

Grim

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score 0 · Answer 2 · answered Jan 19 '13 at 16:40

0

The description is too simple to get idea.

My best guess is security policy of this tomcat prevent B.jsp from accessing kcc.Users (BTW, it is in WEB-INF/classes or some lib jar?), have an eye on tomcat/conf/policy.d

answered Jan 19 '13 at 16:40

pinxue

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score 0 · Answer 3 · answered Jan 19 '13 at 17:45

0

Check you FileB.jsp I think you are missing some jar file. taglibs??

answered Jan 19 '13 at 17:45

SaK

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score 0 · Answer 4 · answered Jan 26 '13 at 08:45

0

it was a problem with the tomcat root application path and the way the application was configured under the virtual host, basically i needed to create a ROOT folder under the virtual host entry.

answered Jan 26 '13 at 08:45

Yehia A.Salam

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Web-Inf, JSPs and useBean

4 Answers4