The attached test case fails for me:

junit.framework.ComparisonFailure: null expected:<MyEntity> but was:<null>
	at junit.framework.Assert.assertEquals(Assert.java:81)
	at junit.framework.Assert.assertEquals(Assert.java:87)
	at org.hibernate.proxy.map.TestMapLazyInitializerSerializability.testSerialization(TestMapLazyInitializerSerializability.java:26)

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira