public TYPE_1 METHOD_1 ( TYPE_2 VAR_1 ) { if ( ! ( VAR_2 . METHOD_2 ( VAR_1 . getId ( ) ) ) ) { VAR_2 . add ( VAR_1 . getId ( ) ) ; } return this ; } 

public TYPE_1 METHOD_1 ( TYPE_2 VAR_1 ) { return METHOD_1 ( VAR_1 . getId ( ) , 1 ) ; } 
