How to get rid of "Response already been committed" error!!

Hi there,
My requirement is, I have a set jsp pages that contains header, sidebar and footer.,
In case any illgeal error comes in the process of any page, I am tring to redirect to an error.jsp page this page also contains header, sidebar and footer.
But I am getting this "Cannot forward as OutputStream or Writer has already been obtained or committed " error
Note: I am using <%@ include file="header.jsp" %> to include header, sidebar and footer jsps
Please guide me through to accomplish this functionality without any error!!
Thanks in advance,
vinoth.

Hi
The server maintains a buffer for the content that is to be written out to the client. When this buffer is filled to capacity the default action is to flush the content to the client while fresh content is loaded into the buffer.
Now, it is illegal to do a forward once the output is commited i.e the buffer has been flushed to the client - this is the source of your error. To solve this problem you will have increase the size of the buffer from the default size ( this depends on the application server you are using) to a size which will not overflow until all the page content is loaded into it so that you have suffcient time to decide if you must flush the buffer to the client or clear the buffer so that you may forward it to the error page.
To increase the buffer size, include the page directive in the JSP page , the page directive would look like this :
<%@ page page-attribute-list %>
In the attribute list for the buffer attribute provide a size in KB - this will be by trial and error as if the size of your Header , Sidebar exceed your buffer size the buffer would be flushed.
Another attribute that you may set is autoFlush the default value of which is true. If you set it to false it becomes your responsibility to flush the buffer when it is full.
Keep me posted on your progress.
Good Luck!
Eshwar Rao
Developer Technical Support
Sun microsystems inc.
http://www.sun.com/developers/support

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          Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.
A folder named "LaunchDaemons" may open. Look inside it for two files with names of the form
          com.something.daemon.plist
and
           com.something.helper.plist
Here something is a variable word, which can be different in each case. So far it has always been a string of letters without punctuation, such as "cloud," "dot," "highway," "submarine," or "trusteddownloads." Sometimes the word is "apple," and then you must be especially careful not to delete the wrong files, because many built-in OS X files have similar names.
If you find these files, leave the LaunchDaemons folder open, and open the following folder in the same way:
/Library/LaunchAgents
In this folder, there may be a file named
          com.something.agent.plist
where the word something is the same as before.
If you feel confident that you've identified the above files, back up all data, then drag just those three files—nothing else—to the Trash. You may be prompted for your administrator login password. Close the Finder windows and restart the computer.
Don't delete the "LaunchAgents" or "LaunchDaemons" folder or anything else inside either one.
The malware is now permanently inactivated, as long as you never reinstall it. You can stop here if you like, or you can remove two remaining components for the sake of completeness.
Open this folder:
/Library/Application Support
If it has a subfolder named just
           something
where something is the same word you saw before, drag that subfolder to the Trash and close the window.
Don't delete the "Application Support" folder or anything else inside it.
Finally, in this folder:
/System/Library/Frameworks
there may an item named exactly
            v.framework
It's actually a folder, though it has a different icon than usual. This item always has the above name. Drag it to the Trash and close the window.
Don't delete the "Frameworks" folder or anything else inside it.
If you didn't find the files or you're not sure about the identification, post what you found.
If in doubt, or if you have no backups, change nothing at all.
The trouble may have started when you downloaded and ran an application called "MPlayerX." That's the name of a legitimate free movie player, but the name is also used fraudulently to distribute VSearch. If there is an item with that name in the Applications folder, delete it, and if you wish, replace it with the genuine article from mplayerx.org.
This trojan is often found on illegal websites that traffic in pirated content such as movies. If you, or anyone else who uses the computer, visit such sites and follow prompts to install software, you can expect more of the same, and worse, to follow. Never install any software that you downloaded from a bittorrent, or that was downloaded by someone else from an unknown source.
In the Security & Privacy pane of System Preferences, select the General tab. The radio button marked Anywhere should not be selected. If it is, click the lock icon to unlock the settings, then select one of the other buttons. After that, don't ignore a warning that you are about to run or install an application from an unknown developer.
Then, still in System Preferences, open the App Store or Software Update pane and check the box marked
          Install system data files and security updates (OS X 10.10 or later)
or
          Download updates automatically (OS X 10.9 or earlier)
if it's not already checked.

I have very thin, colored lines running vertical on my desktop monitor screen. I don't know where they come from or how to get rid of them. I started with one and now have three. Can anyone give me some insight about what to do in getting rid of them?

I have very thin, colored lines that have shown up on my IMac monitor screen. I don't know where they came from or how to get rid of them. I'm concerned now because I started with one and now have three. Does any know why this occurs or how to get rid of them?

I got an address from Applecare, although I can't place my hand on it right now. I didn't bother persuing the letter route myself as I didn't expect much. I know that the location was Cork, Ireland though as that where the UK Applecare is based as far as I'm aware. The best thing to do is to call Applecare (if it's free) and discuss the issue. State that you are not happy wit the fact that you will have to pay to have the problem resolved especiiay if it is an ongoing problem that has not been resolved. I ended up speaking to a senior manager of the Applecare team who then proceeded to tell me about mailing in my grievence to customer services division or something like that.
If I can find the address I may post it if I'm allowed.
In the case of age, Schools usually have a 5-year life-cycle as they tend to be used differently than consumer machines, i.e. being used constantly on a daily basis for at least 12 hours with no break. you would expect issues to appear after a few years, but I expect problems that arise through defects to be resolved and stay resolved. As I mentioned we had machines for around 2 years before the lines appeared and sent them to be repaired. I'm happy with that. What I am unhappy about is the fact that the problem has reappeared exactly in the same way and now I'm left with around 7 machines that I either pay loads to repair or, the more likely replace the machines with newer ones since the age is now big enough to warrant the replacement.
Sorry for the lengthy moan, but these are the reasons I purchased Apple ahrdware in the first place to avoid the "not our problem" stance some PC vendors usually take, similar to the Dell monitors thread mentioned in here somewhere.

How to get rid of automatically created server accounts in iCal and Mail?

I have recently setup an OS X 10.6.2 Server for our small office. I got the domain name wrong in the initial install and fixed this by doing a complete clean reinstall of OS X 10.6 server (then upgrade to 10.6.2).
The problem is that one of the OS X 10.6.2 clients had been setup to talk to the server prior to the rebuild. Now on this client, I cannot work out how to get rid of or change the automatically created server accounts in iCal and Mail - everytime you login, these are recreated using the old domain name (and of course don't work).
In Mail if you remove the server account (from Accounts in Preferences), it just pops back again. I even removed every trace of the old domain name from the apple.com.mail.plist file but when I re-open Mail that darned server account (with the old domain name) just pops up again.
In iCal its slightly different in that you can remove the account and it stays away while you have iCal open. But as soon as you close and re-open it, that server account just pops up again!
I thought it might be something to do with Kerberos and found a Kerberos file on the client which had the old domain name throughout it - I changed all these references to the new domain name, but still the same behaviour in Mail and iCal.
This is doing my head in. Any ideas?
Message was edited by: davidav

I suggest you ask in the snow leopard server forum
http://discussions.apple.com/category.jspa?categoryID=264

How to get rid of "Response already been committed" error!!

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