The LogMsgFactory method "createFieldMappingErrorMsg" fails during assembling the message string, if an exception occurs inside implicit call of toString() on variable "destFieldValue".
(BTW: Why is the variable name "destFieldValue" when it is labelled in log message with "Source field value"?)
In my case a Hibernate LazyInitializationException is thrown during implicit toString() of PersistentSet.
Please resolve the string value in a separate try/catch block.
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