• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Jeanne Boyarsky
  • Liutauras Vilda
  • Campbell Ritchie
  • Tim Cooke
  • Bear Bibeault
Sheriffs:
  • Paul Clapham
  • Junilu Lacar
  • Knute Snortum
Saloon Keepers:
  • Ron McLeod
  • Ganesh Patekar
  • Tim Moores
  • Pete Letkeman
  • Stephan van Hulst
Bartenders:
  • Carey Brown
  • Tim Holloway
  • Joe Ess

Very funny behavior of sessions...  RSS feed

 
Ranch Hand
Posts: 751
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi, I tried creating a session like the following...

My Servlet class



and called it in my servlet like this...



strangely... I get this exception...



type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 3 in the jsp file: /timeoutsys/login.jsp
Generated servlet error:
Incompatible operand types String and boolean


org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:409)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.12 logs.

 
Rancher
Posts: 13459
Android Eclipse IDE Ubuntu
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Is there just the one JSP, or do you include any others? If you change a 'nested' JSP, sometimes it desn't get picked up and recompiled. You can delete the contents of your <tomcat_home>/working directory to force it to build it again.
 
Timothy Sam
Ranch Hand
Posts: 751
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi, I process my JSP like this...


JSP Input - > Process data/create sessions in servlet -> JSP get session/Disply

there is only one JSP involved in this process... If the code need be posted, I'd gladly do it. I just think it's too lengthy with the JSP. Thanks!
 
Timothy Sam
Ranch Hand
Posts: 751
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi, please consider this code...

My Servlet



My JSP page...



I really help someone could help me... I always have problems when casting a session to a primitive type like int or bool... Thanks!
 
Ranch Hand
Posts: 85
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
if ( errorFlag == true)

Here there definitely is a problem,..
Incompatible operands ( String and boolean) ??
 
Antonio Giovanni
Ranch Hand
Posts: 85
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I am sorry, before i wrote the complete thing i accidently clicked the
Add Reply..

Anyway coming back to the problem, instead of
if ( errorFlag == true) it should be

if(errorFlag.equalsIgnoreCase("true"))
 
author
Ranch Hand
Posts: 3892
5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Given that the compiler error is on login.jsp I think it would be useful if you showed us login.jsp.

Kyle
 
Timothy Sam
Ranch Hand
Posts: 751
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks for your help! I guess I got a little dizzy while looking at my source code(didn't even notice my own mistake). But thanks alot!
 
Don't get me started about those stupid light bulbs.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!