Question

IllegalStateException: Current state = FLUSHED, new state = CODING_END

Asked by: mariuso

Hi,
  I have a web application that is working since 1.5 years. I had 2 times a problem with 2 clients complaining that they get in their browser the following message:
java.lang.IllegalStateException: Current state = FLUSHED, new state = CODING_END
      at java.nio.charset.CharsetEncoder.throwIllegalStateException(CharsetEncoder.java:933)
      at java.nio.charset.CharsetEncoder.encode(CharsetEncoder.java:529)
      at sun.nio.cs.StreamEncoder$CharsetSE.flushLeftoverChar(StreamEncoder.java:358)
      at sun.nio.cs.StreamEncoder$CharsetSE.implClose(StreamEncoder.java:414)
      at sun.nio.cs.StreamEncoder.close(StreamEncoder.java:160)
      at java.io.OutputStreamWriter.close(OutputStreamWriter.java:222)
      at java.io.BufferedWriter.close(BufferedWriter.java:244)
      at java.io.PrintWriter.close(PrintWriter.java:137)
      at at.paradine.filters.CompressionServletResponseWrapper.finishResponse(Unknown Source)
      at at.paradine.filters.CompressionFilter.doFilter(Unknown Source)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)

I advised them to delete the cokies and all worked again after that.

Any ideea how:
1. to reconstruct the problem on my developement environment?
or
2. how to solve so that the error will not apprear again?

I use tomcat 4.1 on the production server.

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Asked On
2005-09-13 at 08:22:52ID21559781
Tags

current

,

new

,

coding_end

Topics

Java Programming Language

,

Java Servlets

Participating Experts
1
Points
500
Comments
6

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Answers

 

by: matthewdflemingPosted on 2005-09-13 at 09:30:16ID: 14873293

The links below suggest that the problem is either in tomcat itself or the jdk. Have you tried upgrading tomcat to the latest version? Have you upgraded the jdk?  You might not be able to do either of the above so if not..

Here is an example of a user clicking refresh a bunch and causing this to appear
http://issues.apache.org/bugzilla/show_bug.cgi?id=19002

Here is a link that shows how to reproduce this error in a servlet:
http://www.servlets.com/archive/servlet/ReadMsg?msgId=196175&listName=tomcat-user

Here is an article suggesting the removal of the CompressionFilter (scroll through the messages)
http://www.mvnforum.com/mvnforum/viewthread?thread=2943

This looks like something similiar to what you are experiencing..
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5005426

I also saw this on the tomcat pages:
http://www.mail-archive.com/tomcat-dev@jakarta.apache.org/msg24120.html

 

by: mariusoPosted on 2005-09-13 at 09:40:43ID: 14873402

Hi, i was happy somebody answered but when I saw the links .... all are already visited.
Noone of the links describe something similar (with cookies). I cannot upgrade jdk since customer is reticent to such things.

 

by: matthewdflemingPosted on 2005-09-13 at 09:53:29ID: 14873523

How do you know for certain the cookie deletion is actually what did the trick?
How could the information in the cookies influence the app?
Can you regen their cookie information and reproduce the problem?
Did you try generating the exception like some of the articles suggest?
Did you try removing the compression filter?
Have these errors happened recently?
If you have only had this problem occur two times in as many years.. is it really worth the trouble?
Doesn't the infrequency seem to suggest some sort of user behavior issue? Like the hold down refresh bug?
Or do you only have two users on the system?

 

by: mariusoPosted on 2005-09-13 at 10:00:50ID: 14873621

>How do you know for certain the cookie deletion is actually what did the trick?
Yes. The problem happened for 2 clients. Every time the trick was to delete the cookies.
>How could the information in the cookies influence the app?
Normally not. Only session cookie maybe
>Can you regen their cookie information and reproduce the problem?
Yes. I backed up the cookie but i added the cokie to my IE and the err is not reproduceable
>Did you try generating the exception like some of the articles suggest?
I tried everythink but i was not able to reproduce
>Did you try removing the compression filter?
this is not acceptable. I need compresion filter
>Have these errors happened recently?
first time the err apeared about 6 months ago. Next time ... today
>If you have only had this problem occur two times in as many years.. is it really worth the trouble?
Yes, worth .... i have a blocker in my bugzilla :(
>Doesn't the infrequency seem to suggest some sort of user behavior issue? Like the hold down refresh bug?
I'm not sure
>Or do you only have two users on the system?
I have some tousents of users

 

by: matthewdflemingPosted on 2005-09-13 at 10:14:39ID: 14873755

okay so deleting the cookie just forced the user to get a new session then?  Are the cookies persistent? If not, then closing and opening the browser should achieve the same effect.  Was the user's session still alive when you tried to reproduce by copying the cookie contents?

If you were using an apache (or other) webservers in front of tomcat you wouldn't need the compression filter..

20120131-EE-VQP-002

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