Re: [jetty-users] JSP issue with embedded jetty

[Jan Bartel <janb@xxxxxxxxxxx>]

Susmit,

Does it work if you move the jsp out of WEB-INF and into a directory above it?

Jan

On 1 September 2011 05:26, Susmit Shukla <shukla.susmit@xxxxxxxxx> wrote:

Hi,

I'm trying to test JSP tags that are defined as .tag files in my application's WebContent directory. The webproject layout is as follows:
Project
---WebContent
-------WEB-INF
-----------tags
--------------tag1.tag
---------- views
--------------tagTest.jsp

Using standalone jetty, I'm trying to load test jsp. tagTest.jsp is just a wrapper over the tagfile and invokes it using tagdir attribute like:

<%@ taglib prefix="test" tagdir="/WEB-INF/tags" %>
<test:tag1 model="${cat}" />

I have setup the server like this:
        WebAppContext webCtx = new WebAppContext();
        webCtx.setContextPath("/jsptest");
        webCtx.setDescriptor("WebContent/WEB-INF/test-web.xml");

        webCtx.setResourceBase("WebContent");
       
        ContextHandlerCollection contexts = new ContextHandlerCollection();
        contexts.setHandlers(new Handler[] { webCtx });
        server.setHandler(contexts);

I have set up a servlet that forwards the request to test jsp since I was not able to invoke jsp from subdirectory of WebContent directly:
            request.setAttribute("cat", new SomeModel());
            getServletContext().getRequestDispatcher("/WEB-INF/views/tagTest.jsp").forward(request, response);

Invoking this servlet gives following error (also same error if I copy test jsp directly under WebContent and invoke as /jsptest/tagTest.jsp)

org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:634)
    at org.apache.jasper.servlet.JspServletWrapper.loadTagFile(JspServletWrapper.java:280)
    at org.apache.jasper.compiler.TagFileProcessor.loadTagFile(TagFileProcessor.java:660)
    at org.apache.jasper.compiler.TagFileProcessor.access$000(TagFileProcessor.java:91)
    at org.apache.jasper.compiler.TagFileProcessor$TagFileLoaderVisitor.visit(TagFileProcessor.java:719)
...

Caused by: java.lang.NullPointerException
    at org.apache.taglibs.standard.tlv.JstlBaseTLV.validate(JstlBaseTLV.java:149)
    at org.apache.taglibs.standard.tlv.JstlCoreTLV.validate(JstlCoreTLV.java:105)
    at org.apache.jasper.compiler.TagLibraryInfoImpl.validate(TagLibraryInfoImpl.java:949)
    at org.apache.jasper.compiler.Validator.validateXmlView(Validator.java:1921)
    at org.apache.jasper.compiler.Validator.validate(Validator.java:1888)
    at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:223)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:625)

How to configure JSP with embedded jetty that have tagdir tags? Do I need to have a war if tagdir's are used?
P.S. Regular jsp is getting loaded fine, tag uri is getting resolved correctly:

<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt" %> - this works

Thanks,
Susmit

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