public java.util.Set < TYPE_1 > METHOD_1 ( ) { <BUG> if ( ( VAR_1 ) == null ) return TYPE_2 . METHOD_2 ( ) ;</BUG> return VAR_1 ; }
public java.util.Set < TYPE_1 > METHOD_1 ( ) { if ( ( VAR_1 ) == null ) { VAR_1 = new java.util.HashSet < > ( ) ; } return VAR_1 ; } 
