SecurityException

[Martin Rea]

The interface I was given in my assignment throws a SecurityException in the update, delete and unlock method.

The description says "..if the record is locked with a cookie other than lockCookie".

My first thought was to use java.lang.SecurityException, but this is a runtime Exception and I believe it is bad practice to throw a runtime exception in the middle of the code?

So I made my own SecurityException - does this seems ok?

[YungSheng Chang]

For me, I just use java.lang.SecurityException since that is what the instruction specifies.

It is ok to get RuntimeException in the middle of code, as long as you expect it to happen, such as ArithmeticException.

I do no see any benefits of making your own SecurityException class; but for DuplicatedException and RecordNotFoundException class you should make your own.