title: Changing the JVM's default file system
body: <p>I have an application that I am trying to run in an <a href="https://github.com/google/jimfs" rel="nofollow">in-memory file system</a> but my application has a dependency that uses <code>java.io</code> as opposed to <code>java.nio</code>. Is there any way I can change the JVM's default file system to remedy this?</p>