public ClassDoc superclass ( ) { if ( isInterface ( ) || isAnnotationType ( ) ) return null ; if ( tsym == env . syms . objectType . tsym ) return null ; ClassSymbol c = ( ClassSymbol ) env . types . supertype ( type ) . tsym ; if ( c == null || c == tsym ) c = ( ClassSymbol ) env . syms . objectType . tsym ; return env . getClassDoc ( c ) ; }
Return the superclass of this class