I have no idea where to start on this one. I was handed a Java application by my boss because I answered his question with "I used it for a couple days about 5 years ago" when he asked me if I was familiar with Java.
So here's my issue: This software connects to a receipt printer via serial port and prints receipts after a transaction was completed in the software.. For some reason the software only worked with Windows XP and so I was tasked with making it work under Vista and Windows 7.
Ok, so I just compile it with the latest compiler and it should work right? Well it did, sort of. It runs under windows 7 now just fine but the receipt printer no longer works. I had the /lib/rxtxcomm.jar file included with the compiled jar so in theory it should be working but for some reason it won't see the printer anymore.
Is there anyone that can give me some starting points or should I make sure my resume is up to date and tell the boss I can't do it?