public void METHOD_1 ( TYPE_1 VAR_1 ) { VAR_1 . METHOD_2 ( ) ; VAR_2 . METHOD_3 ( STRING_1 ) ; } 

public void METHOD_1 ( TYPE_1 VAR_1 ) { VAR_1 . METHOD_2 ( ) ; if ( null != VAR_2 ) VAR_2 . METHOD_3 ( STRING_1 ) ; } 
