How to check if a file exists in Java? (NIO and legacy ways)

Hello everyone! I'm a beginner Java developer and I've run into a problem. I'm writing a small application that reads a configuration file `config.properties`. But before reading it, I need to make sure the file actually exists on disk, otherwise a `FileNotFoundException` will be thrown. I tried using `File.exists()`, but online sources say this method is outdated and doesn't always work correctly (for example, if the file is a symbolic link). I've also heard about the `java.nio.file` package, but I don't fully understand how to use it. Here's my current code that the linter doesn't like: ```java import java.io.File; public class ConfigLoader { public static void main(String[] args) { File configFile = new File("/etc/myapp/config.properties"); if (configFile.exists()) {