[CAY-213] NullPointerException in ContextCommit with locking

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1 [LEGACY]
• Fix Version/s: 1.1 [LEGACY]
• Component/s: Core Library
• Environment: Cayenne 1.1-RC1, Oracle 8i, Windows XP, JBoss+Tomcat, j2sdk1.42_04.
• Assignee: Andrus Adamchik
• Reporter: Bryan Lewis
• Created: 16/Oct/04 01:20
• Updated: 25/Oct/04 20:50
• Resolved: 21/Oct/04 04:48

Description

I made a relatively small test case which I'll attach as jd.zip; it has a ReadMe.txt. In the process of boiling it down, I found one line of my code that causes the exception to happen later at commitChanges time. It modifies the value of an attribute used for locking. It's what I do on almost all my entities – it's a timestamp for the sake of optimistic locking – but something goes wrong with this particular entity, leading to:

java.lang.NullPointerException
at org.objectstyle.cayenne.access.ContextCommit.appendOptimisticLockingAttributes(ContextCommit.java:564)

Thanks!