[Hibernate-issues] [Hibernate-JIRA] Created: (HB-149) Using Sets Before Fully Initialized causes NullPointerException

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  A new issue has been created in JIRA.

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  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-149


Here is an overview of the issue:
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        Key: HB-149
    Summary: Using Sets Before Fully Initialized causes NullPointerException
       Type: Bug

     Status: Unassigned
   Priority: Minor

    Project: Hibernate2
 Components: 
             core
   Versions:
             2.0.1

   Assignee: 
   Reporter: Bill Dudney

    Created: Wed, 25 Jun 2003 4:21 PM
    Updated: Wed, 25 Jun 2003 4:21 PM
Environment: JDK 1.4.1

Description:
one-to-man from A -> B

A.addB(B foo) {
  if(null != foo) {
    set_of_bs.add(foo);
    foo.setA(this);
  }
}


B.setA(A bar) {
  a = bar;
  if(null != a && !a.getBs().contains(this)) {
    a.addB(b);
  }
}

I'm not sure why but the tempList in the net.sf.hibernate.collection.Set ends up being null at some point during initialization. endRead is being called twice, the first time its ok the second time it throws a NullPointerException.

I'm not sure this is a bug with Hibernate or if I should not be maintaining the backwards pointers in this way. 


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