public com . sun . javadoc . Type superclassType ( ) { if ( asClassDoc ( ) . isInterface ( ) ) { return null ; } Type sup = env . types . supertype ( type ) ; return TypeMaker . getType ( env , ( sup != type ) ? sup : env . syms . objectType ) ; }
Return the class type that is a direct supertype of this one . Return null if this is an interface type .