I am porting an asp site to struts and found some
weird behavior around jsp:include and the .inc file
extension. I applogise if this is obvious, and I
couldn't find any references to this previously. Try
this at home...
<%-- test.jsp --%>
<html>
<body>
<jsp:include page="foo.inc"/>
</body>
</html>
create text file foo.inc that contains text hello
world
browse to test.jsp and you get
java.lang.IllegalStateException
at
org.apache.jasper.runtime.ServletResponseWrapperInclude.getOutputStream(ServletResponseWrapperInclude.java:109)
now move foo.inc to foo.txt and change jsp:include to
<jsp:include page="foo.txt" />
it works and you see hello world.
Why? Here is a snippet form test$jsp.java servlet
// begin
[file="/test/test.jsp";from=(7,0);to=(7,36)]
{
String _jspx_qStr = "";
JspRuntimeLibrary.include(request,
response, "BannerBody.inc" + _jspx_qStr, out, false);
if
("true".equals(request.getAttribute("javax.servlet.forward.seen")))
return;
}
// end
This was reproducable on tomcat 4.0.4(solaris) and
4.0.6(linux). I didn't know that jsp:include
(RequestDispatch.include) was smart about file
extensions. What am I missing here?
Here is the entire exception
Apache Tomcat/4.0.6 - HTTP Status 500 - Internal
Server Error
type Exception report
message Internal Server Error
description The server encountered an internal error
(Internal Server Error) that prevented it from
fulfilling this request.
exception
java.lang.IllegalStateException
at
org.apache.jasper.runtime.ServletResponseWrapperInclude.getOutputStream(ServletResponseWrapperInclude.java:109)
at
org.apache.catalina.servlets.DefaultServlet.serveResource(DefaultServlet.java:1164)
at
org.apache.catalina.servlets.DefaultServlet.doGet(DefaultServlet.java:525)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:683)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:819)
at
org.apache.jsp.test$jsp._jspService(test$jsp.java:216)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:536)
=====
Austin King
http://www.cruftworks.com/
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