2 Problems With My Application

Hi,
I am attempting to write my 1st application a contact manager and have come across 2 bugs that I just can't get rid of.
1. The application worked fine unitl I added functionality to read / write contacts from a file - this seems to be linked to the Observer / Subject interfaces I created but I just can't work out why.
2. I have created a contact list model that extends AbstractList so that the list can be imported into a JList. If there are no contacts in the list when I start the app it causes an error. How does when get round this? When someone buys my app I dont want to have to hard code a contact in just to make it work!!!
I would be most grateful if someone could have a look at this for me as I am completely lost! I have postded the app here http://www.assertia.com/contactManager.zip
Thanks for your time.
Shaun

I would be most grateful if someone could have a look
at this for me as I am completely lost! I have
postded the app here
http://www.assertia.com/contactManager.zip
Thanks for your time.
Rather than asking us to download your files and do a code review, can you please just post a short, concise, executable example of what you're trying to do? This does not have to be the actual code you are using. Write a small example that demonstrates your intent, and only that. Wrap the code in a class and give it a main method that runs it - if we can just copy and paste the code into a text file, compile it and run it without any changes, then we can be sure that we haven't made incorrect assumptions about how you are using it.
Post your code between [code] and [/code] tags. Cut and paste the code, rather than re-typing it (re-typing often introduces subtle errors that make your problem difficult to troubleshoot). Please preview your post when posting code.

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