Issue Summary

Cloud import fails when the digest or network columns in the Confluence NOTIFICATIONS table are exported with null values. These attributes are mapped to primitive boolean fields in Cloud, which cannot accept nulls, causing a Hibernate error during import.

Steps to Reproduce

1. In a Confluence Server/DC instance, locate rows in the NOTIFICATIONS table where digest or network is null.

1. Run a server-to-cloud migration using CCMA.

1. Observe the Cloud import logs.

Expected Results

The rows from the NOTIFICATIONS table are exported and imported into the Cloud environment without error, regardless of null values in digest or network.

Actual Results

Cloud import fails with the following error:
org.springframework.orm.hibernate5.HibernateSystemException:
Null value was assigned to a property of primitive type setter
of com.atlassian.confluence.mail.notification.Notification.digest;
nested exception is org.hibernate.PropertyAccessException:
Null value was assigned to a property of primitive type setter
of com.atlassian.confluence.mail.notification.Notification.digest
 

Workaround

Manually update the source database prior to export to ensure digest and network are never null:
UPDATE NOTIFICATIONS SET network = false WHERE network IS NULL;
UPDATE NOTIFICATIONS SET digest = false WHERE digest IS NULL;