filelock « nio « Java I/O Q&A

1. java.nio.FileLock    forums.oracle.com

Some network filesystems permit file locking to be used with memory-mapped files only when the locked regions are page-aligned and a whole multiple of the underlying hardware's page size. Some network filesystems do not implement file locks on regions that extend past a certain position, often 230 or 231. In general, great care should be taken when locking files that reside ...

2. Need an example of how to use java.nio.channels.FileLock    forums.oracle.com