public boolean METHOD_1 ( TYPE_1 VAR_1 ) { <BUG> return VAR_2 . add ( new TYPE_2 ( this , VAR_1 ) ) ;</BUG> }
public boolean METHOD_1 ( TYPE_1 VAR_1 ) { return VAR_2 . add ( new TYPE_2 ( id , VAR_1 ) ) ; } 
