I have a method that writes to a log file. If the file exists it should append to it, if not then I want it to create a new file.
if (!file.exists() &&am
normally this is something you changed recently, first off your sample code is if not file exists and not create new file - you are trying to code away something - what is it?
Then, look at a directory listing to see if it actually exists and do a println / toString() on the file object and getMessage() on the exception, as well as print stack trace.
Then, start from zero knowledge again and re factor from the get-go each step you are using to get here. It's probably a duh you stuck in there somewhere while conceptualizing in code ( because it was working ) - you just retrace each step in detail, you will find it.