While it’s perfectly legal to give a class the same simple name as a class in another package that it extends or interface it implements, it’s confusing and could cause problems in the future.

Noncompliant Code Example

package my.mypackage;

public class Foo implements a.b.Foo { // Noncompliant

Compliant Solution

package my.mypackage;

public class FooJr implements a.b.Foo {