Perhaps counter-intuitively, a ``++compareTo++`` method is _expected_ to throw a ``++NullPointerException++`` if passed a null argument, and a ``++ClassCastException++`` if the argument is of the wrong type. So there's no need to null-test or type-test the argument.


== Noncompliant Code Example

----
public int compareTo(Object obj) {

  if (obj == null) { // Noncompliant
    return -1;
  }
  if (! obj instanceof MyClass.class) { // Noncompliant
    return -1;
  }

  MyObject myObj = (MyObject) obj;
  // ...
}
----


== Compliant Solution

----
public int compareTo(Object obj) {

  MyObject myObj = (MyObject) obj;
  // ...
}
----



ifdef::env-github,rspecator-view[]
'''
== Comments And Links
(visible only on this page)

include::comments-and-links.adoc[]
endif::env-github,rspecator-view[]
