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Cookie persistance across packages?

Chad Clites
Ranch Hand

Joined: Aug 16, 2005
Posts: 134
I have an app that checks for a cookie, and if it doesn't exist, asks for log-in information, and sets a cookie once login information is verified.

Nothing earth shattering there, and that works perfectly. The cookie is set. Once the cookie is set, the servlet forwards the response to a servlet in another package. I am trying to use the following code to retrieve the cookie:

If I try to do getC00kies from a different package, cookieArray is null. I know the code works though because if I use it from the same package, then I can get the cookies. I have been reading as many different threads I can find on the topic, but I can't find any that specifically deal with multiple packages, and I am guessing that the fact that I am not able to get the cookies has to do with the fact it is from a different package.

Is that a correct assumption? I have checked Sun's documentation, and I can not seem to find what I have to do to set the cookie to make it available across packages.

EDIT: Now that I asked, I apparently need to set the domain correctly for each cookie....

[ August 23, 2006: Message edited by: Bear Bibeault ]
[ August 23, 2006: Message edited by: Chad Clites ]
Chad Clites
Ranch Hand

Joined: Aug 16, 2005
Posts: 134
I apologize for the double post, but I figured out my problem. My assumption about setting the Domain was correct; however, many threads I looked at were giving incorrect advice. Since I am testing in my development server, I knew my domain was localhost. Many of the threads I looked at recommended setting domain like this:


Unfortunately, that advice seems to be incorrect. From the Cookie documentation:
The form of the domain name is specified by RFC 2109. A domain name begins with a dot ( and means that the cookie is visible to servers in a specified Domain Name System (DNS) zone (for example,, but not

So it turns out that the correct domain for my cookie was:

And now it works perfectly.
[ August 23, 2006: Message edited by: Chad Clites ]
I agree. Here's the link:
subject: Cookie persistance across packages?
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