How to list a 2 million files directory in java without having an “out of memory” exception

Question

I have to deal with a directory of about 2 million xml\'s to be processed.

I\'ve already solved the processing distributing the work between machines and threads us

Answer 1

Since you're on Windows, it seems like you should have simply used ProcessBuilder to start something like "cmd /k dir /b target_directory", capture the output of that, and route it into a file. You can then process that file a line at a time, reading the file names out and dealing with them.

Better late than never? ;)