public TYPE_1 < TYPE_2 > METHOD_1 ( TYPE_3 < TYPE_2 > VAR_1 ) { VAR_2 = VAR_1 ; return this ; } 

public TYPE_1 < TYPE_2 > METHOD_1 ( TYPE_3 < TYPE_2 > VAR_1 ) { if ( VAR_1 != null ) { VAR_2 = VAR_1 ; } return this ; } 
