<BUG>java.lang.Integer METHOD_1 ( ) {TYPE_1 x = VAR_1 ;</BUG> if ( x == null ) { return null ; } while ( ( VAR_2 ) != null ) { x = VAR_2 ; } <BUG> return x . key ;</BUG> }
private TYPE_1 METHOD_1 ( TYPE_1 node ) { TYPE_1 x = node ; if ( x == null ) { return null ; } while ( ( VAR_2 ) != null ) { x = VAR_2 ; } return x ; } 
