How can I find out from where a class is loaded from?

Question:

How can I find out from where a class is loaded from?

Code:

public class ClassLocationTest {
   public static void main(String[] args) {
      ClassLocation cl = new ClassLocation();
      System.out.println(cl.getClass().getProtectionDomain().getCodeSource().getLocation());
   }
}
 
class ClassLocation {
}

Output:

$ javac -d /tmp/classes ClassLocationTest.java

$ java -cp /tmp/classes ClassLocationTest
file:/tmp/classes/