public TYPE_1 METHOD_1 ( ) { if ( ( this . METHOD_2 ( ) ) != 0 ) { return VAR_1 . METHOD_3 ( ) ; } else { return null ; } } 

public TYPE_1 METHOD_1 ( ) { if ( ! ( this . isEmpty ( ) ) ) { return VAR_1 . METHOD_3 ( ) ; } else { return null ; } } 
