Problem: Persistence Tutorial 10

[Rupert]

This tutorial is excellent in all respects (as was the Total Beginners tutorial).

But I have hit a bit of a problem in tutorial 10.  Prior to including newMyLibrary.printStatus() MyLibrary ran perfectly, but its inclusion resulted in the following output:

Printing information from saved xml file.
Status Report of MyLibrary:
Test Drive Library: 2 books; 2 people.
War and Peace by Tolstoy; Available
Great Expectations by Charles Dickens; Checked out to Jim
Exception in thread "main" java.lang.NullPointerException
    at org.persistence.tutorial.MyLibrary.getBooksForPerson(MyLibrary.java:76)
    at org.persistence.tutorial.MyLibrary.printStatus(MyLibrary.java:159)
    at org.persistence.tutorial.MyLibrary.main(MyLibrary.java:146)

Also, on inspection, p1 in the getBooksForPerson method is shown to be null.

Could anyone please assist?
Rupert

Regards,
Rupert

[Mark Dexter]

Hi Rupert. Could you please paste in the entire MyLibrary and MyUtilities source code? Then I can try it here and see what the problem is. Thanks. Mark