Spring webmvc is not compatible with tomcat-embed-jasper for a JSP project

[jithin1009]

When JSP files consist of multiple includes of other JSPa, ResourceHttpMessageConverter is unable to writeContent.

From my initial analysis, HttpOutputMessage is a ServletResponseWrapperInclude of tomcat jasper, which will throw an IllegalArgumentException when trying to access the outputStream.

See the below stack trace for more details

java.lang.IllegalStateException: null
	at org.apache.jasper.runtime.ServletResponseWrapperInclude.getOutputStream(ServletResponseWrapperInclude.java:64)
	at org.springframework.http.server.ServletServerHttpResponse.getBody(ServletServerHttpResponse.java:98)
	at org.springframework.http.converter.ResourceHttpMessageConverter.writeContent(ResourceHttpMessageConverter.java:159)
	at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:115)
	at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:46)
	at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:235)
	at org.springframework.web.servlet.resource.ResourceHttpRequestHandler.handleRequest(ResourceHttpRequestHandler.java:621)
	at org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:52)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:632)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:510)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:453)
	at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:994)

Is there any other way to bypass this?

[bclozel]

Is there a problem with your setup? I find a bit ususual that a JSP would be served as a static resource. Can you share a minimal sample that reproduces the problem?

[jithin1009]

We believe our setup is correct. Our code will return text/javascript as a response and this response is sent to another component

`<%@ page language="java"%>
<%@ page import="java.net.URLDecoder" %>
<jsp:include page='/static/v_1_0/scripts/jquery-1.11.0.min.js'/>

`

in the above Jsp if we remove the last include everything is working fine.

My Observations

in ServeltServerHttpResponse class

@Override public OutputStream getBody() throws IOException { this.bodyUsed = true; writeHeaders(); return this.servletResponse.getOutputStream(); }
In the above code, getOutputStream will throw IllegalArgumentException

[bclozel]

This is invalid.

"jsp:include page" is meant for including dynamic JSP pages, not static files served by Spring.

If you need more help please ask a question on StackOverflow.