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Re: [Fwd: [webtier] WG: Weird Jsp-compilation problem in the Jasper-component]

From: Judy Tang <Judy.J.Tang_at_Sun.COM>
Date: Sun, 14 Sep 2008 10:48:15 -0700

Hi Adam,

Thanks for getting back to this issue with additional information. I
just reopened this 5980. Developer requested
a war file (preferable a small test case), if you have some time could
you please help.

Thanks,
Judy

Adam Bien wrote:

> The problem, which I filed:
> https://glassfish.dev.java.net/issues/show_bug.cgi?id=5980. Seems to
> occur in other apps as well.
> See attached email... (found it on a mailing list...) With liferay it
> was hard to reproduce - but I would classify it as severe one...
>
> regards,
>
> adam
>
>
>
> ------------------------------------------------------------------------
>
> Subject:
> [webtier] WG: Weird Jsp-compilation problem in the Jasper-component
> From:
> Michael Weigmann <michael.weigmann_at_hsh-berlin.com>
> Date:
> Fri, 15 Aug 2008 13:22:17 +0200
> To:
> webtier_at_glassfish.dev.java.net
>
> To:
> webtier_at_glassfish.dev.java.net
>
>
>Hi Glassfish Community,
>
>i recently had a weird Jsp-compilation problem in the
>Glassfish-Jasper-component (running inside a Jetty webserver):
>
>A simple web-app (see http://www.photonensturm.de/Testing.war) with the
>following files:
>
>/jsp/test.jsp
>/META-INF/manifest.mf
>/WEB-INF/web.xml
>/WEB-INF/classes/de/Testing.class
>/WEB-INF/classes/de/testing/Test.class
>
>In test.jsp, i have an import of class Test:
><%@ page import="de.testing.Test"%>
>
>But when the jsp is being compiled by the JDT-Eclipse-Compiler, i get the
>exception:
>
>org.apache.jasper.JasperException: PWC6033: Unable to compile class for JSP
>
>PWC6199: Generated servlet error:
>The import de.testing cannot be resolved
>
>PWC6197: An error occurred at line: 7 in the jsp file: /jsp/test.jsp
>PWC6199: Generated servlet error:
>Test cannot be resolved to a type
>
>
>at
>org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandle
>r.java:107)
>at
>org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:2
>80)
>at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:350)
>at org.apache.jasper.compiler.Compiler.compile(Compiler.java:411)
>at
>org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:5
>92)
>at
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
>44)
>at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:470)
>at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:364)
>at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
>at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
>at
>org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
>at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)
>at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
>at
>org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerColl
>ection.java:206)
>at
>org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:11
>4)
>at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
>at org.mortbay.jetty.Server.handle(Server.java:324)
>at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
>at
>org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnectio
>n.java:829)
>at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
>at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
>at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
>at
>org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
>at
>org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488
>)
>
>It stumbles over the class de.Testing with the same name as the package. I
>tested the web-app in Tomcat 6.0.16 successfully which is using the
>jasper-jdt-component as well (at least i think it does as the library is in
>there - but it might be different from the Glassfish-version).
>
>I could track that down to a method in class JDTJavaCompiler:
>private boolean isPackage(String result)
>
>The argument "de.testing" is modified to "de/testing.class" and afterwards
>is trying to open an InputStream by the classloader. Therefore the method
>returns false (no package) under Windows-OS but should return true.
>
>Hhmmm, is my analysis correct? Perhaps this error was fixed in a newer
>version than the one that is used in Jetty (6.1.11 from June 2008). If not,
>we should take a look at the JDTJavaCompiler in Tomcat-Jasper?...
>
>Hope that someone can comment on this. At the moment i try to avoid such
>filename-constellations.
>
>
>Cheers,
>Michael
>
>
>
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