Check if file is already open

Question

I need to write a custom batch File renamer. I\'ve got the bulk of it done except I can\'t figure out how to check if a file is already open. I\'m just using the java.

Answer 1

I don't think you'll ever get a definitive solution for this, the operating system isn't necessarily going to tell you if the file is open or not.

You might get some mileage out of java.nio.channels.FileLock, although the javadoc is loaded with caveats.