public void delete ( TYPE_1 key ) { <BUG> TYPE_2 < TYPE_1 , TYPE_3 > . VAR_1 node = METHOD_1 ( key , VAR_2 ) ;if ( node == null ) {return ;}delete ( key , node ) ;</BUG> }
public void delete ( TYPE_1 key ) { VAR_2 = delete ( key , VAR_2 ) ; } 
