JSP compliation error in Jboss 4.2.1

2009-09-24 08:25:34,613 http-127.0.0.1-8080-16 ERROR test 30333x38x1 1pevvl4 /secure/project/ViewProjects.jspa [web].[localhost].[/jira].[action]] Servlet.service() for servlet action threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 39 in the jsp file: /decorators/admin.jsp
Type mismatch: cannot convert from Object to ReindexMessageManager
36:                 HttpSession httpSession = request.getSession(false); //dont create the session if there isnt one
37:                 User remoteUser = httpSession != null ? (User) httpSession.getAttribute(DefaultAuthenticator.LOGGED_IN_KEY) : null;
38: 
39:                 ReindexMessageManager reindexMessageManager = ComponentManager.getComponentInstanceOfType(ReindexMessageManager.class);
40:                 final String message = reindexMessageManager.getMessage(remoteUser);
41:                 if (!StringUtils.isBlank(message))
42:                 {


Stacktrace:
	at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
	at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
	at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:415)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:308)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)