code: public String getClassName()
      {
          if ( _fieldDecl == null || _fieldDecl.getType() == null )
              return "";
  
          //
          // This is lazily... but much easier than navigating the APT type system and just
          // as effective ;)
          String typeName = _fieldDecl.getType().toString();
          int formalIndex = typeName.indexOf('<');
          if (formalIndex > 0)
              return typeName.substring(0, formalIndex);
          return typeName;
      }
docs: Returns the class name of the field (does not include any formal type parameters