## Why is this an issue?

Shadowing makes it impossible to use the type parameter from the outer scope. Also, it can be confusing to distinguish which type parameter is being used.

This rule raises an issue when a type parameter from an inner scope uses the same name as one in an outer scope.

### Noncompliant code example

     public class TypeParameterHidesAnotherType<T> {

        public class Inner<T> { // Noncompliant
          //...
        }

        private <T> T method() { // Noncompliant
          return null;
        }

      }

### Compliant solution

    public class NoTypeParameterHiding<T> {

        public class Inner<S> { // Compliant
          List<S> listOfS;
        }

        private <V> V method() { // Compliant
          return null;
        }

      }