Since at least jdk4 getMethod(name) and getMethods() called on an interface class does not find/return object methods that are not overridden in a super interface.

---

$ cat TT.java
import java.lang.reflect.*;
public class TT {
    public static void main(String[] args) throws Exception {
        System.out.println(TT.class.getMethod("equals", new Class[] {Object.class}));
        System.out.println(I.class.getMethod("equals", new Class[] {Object.class}));
    }
}

interface I {}

$ /localhome/hotspots/old/j2sdk1.4.2/bin/java TT
public boolean java.lang.Object.equals(java.lang.Object)
Exception in thread "main" java.lang.NoSuchMethodException: I.equals(java.lang.Object)
at java.lang.Class.getMethod(Class.java:978)
at TT.main(TT.java:5

---

$ cat T.java
import java.lang.reflect.*;
public class T {
    public static void main(String[] args) {
        Method[] ms = I.class.getMethods();
        for (int i = 0; i < ms.length; i++)
            System.out.println(ms[i]);
    }
}

interface I {}

$ /localhome/hotspots/old/j2sdk1.4.2/bin/java T
$

The javadoc for these methods should be updated to match the longstanding behavior.