Generic Trouble

  I have defined a signature in an interface:

void addrac
( java.lang.Comparable< ? >container,
  int position );

  . I implemented this as follows in a class:

public void addrac
( final java.lang.Comparable< ? >container,
  final int position )...

  . This worked fine, until I needed to refer to the type ???
  within the body of the method. I tried to give it a name:

public< T >void addrac
( final java.lang.Comparable< T >container,
  final int position )...

  . But now Java tells me that this does *not* override the
  method of the interface.

  One step back in time: Actually, I started from this interface:

void addrac
( java.lang.Comparable container,
  int position );

  I inserted the ?< ? >? only to get rid of a ?rawtype? warning.

  So what would be a good way to get rid of such ?rawtype?
  warnings, but also allow implementations to refer to the
  type name in their body, when they need this? (Or how can
  I get such a reference while still implementing the
  signature of the interface?)