private TYPE_1 METHOD_1 ( TYPE_2 VAR_1 ) throws TYPE_3 { <BUG> return METHOD_2 ( VAR_1 , null ) ;</BUG> }
private TYPE_1 METHOD_1 ( TYPE_2 VAR_1 ) throws TYPE_3 { return METHOD_2 ( VAR_1 , null , null ) ; } 
