title: What will readAllLines return if the file does not exist?
body: <p>The oracle docs says <a href="https://docs.oracle.com/javase/7/docs/api/java/nio/file/Files.html#readAllLines(java.nio.file.Path,%20java.nio.charset.Charset)" rel="nofollow">here</a> that the <code>Files.readAllLines(Path path, Charset cs)</code> method returns the lines from a file as a <code>List&lt;String&gt;</code>.<br>
  What will it return if the file does not exist? Also which implementation of <code>List&lt;String&gt;</code> will it return?</p>