code: public TypeQualifierAnnotation getParameter(MethodDescriptor methodDesc, int param, TypeQualifierValue<?> tqv) {
          //
          // TODO: handling of overridden methods?
          //
          Map<TypeQualifierValue<?>, TypeQualifierAnnotation> map = parameterMap.get(methodDesc, param);
          if (map == null) {
              return null;
          }
          return map.get(tqv);
      }
docs: Get the TypeQualifierAnnotation on a parameter.
  
  @param methodDesc
  the method
  @param param
  the parameter (0 == first parameter)
  @param tqv
  the type qualifier
  @return the type qualifier annotation on the method return value, or null
  if no (interesting) type qualifier annotation was computed for
  this method