public TYPE_1 METHOD_1 ( TYPE_2 VAR_1 ) throws TYPE_3 { if ( ( VAR_2 ) != null ) { VAR_3 = VAR_1 ; } else { throw new TYPE_3 ( ) ; } return this ; } 

public TYPE_1 METHOD_1 ( TYPE_2 VAR_1 ) throws TYPE_3 { if ( ( VAR_2 ) == null ) { VAR_3 = VAR_1 ; } else { throw new TYPE_3 ( ) ; } return this ; } 
