public TYPE_1 < TYPE_2 > add ( TYPE_2 ... VAR_1 ) { <BUG> VAR_2 . add ( VAR_1 ) ;</BUG> return this ; }
public TYPE_1 < TYPE_2 > add ( TYPE_2 ... VAR_1 ) { for ( TYPE_2 item : VAR_1 ) { add ( item ) ; } return this ; } 
