jesse-gallagher
commented
5 years ago This may be tricky. The NIO WatchService is already set up to poll every 25ms, though it's possible that it's specifically polling the internal watcher, not the physical filesystem.
It's possible to "kick" the watcher: if you open a log file in e.g. Notepad++, then any changes that hadn't yet made it to the console will immediately show up.
If NIO doesn't work for it, it may be "better" to instead set up a scheduled thread to manually check every so often.
I suspect that this is just a limitation of Java NIO on Windows: I'm using the directory watcher mechanism, but it doesn't get immediate notifications and seems to only poll every couple of minutes. It may be best to switch to explicit quicker polling on Windows if possible.