public void METHOD_1 ( ) throws java.io.IOException { this . VAR_1 . METHOD_1 ( ) ; this . VAR_2 . METHOD_2 ( ) ; } 

public void METHOD_1 ( ) throws java.io.IOException { if ( null != ( this . VAR_1 ) ) { this . VAR_1 . METHOD_1 ( ) ; } if ( null != ( this . VAR_2 ) ) { this . VAR_2 . METHOD_2 ( ) ; } } 
