> Went ahead and restored the previous behavior where the QueryImpl > itself checks for non-uniqueness and throws the expected exception.
That breaks the single result optimization that was added for OPENJPA-168 when getSingleResult() is called. There was a reason we moved the validation to the kernel. The previous code was correct. You need to use the "hard" way of creating new exception types. Notice: This email message, together with any attachments, may contain information of BEA Systems, Inc., its subsidiaries and affiliated entities, that may be confidential, proprietary, copyrighted and/or legally privileged, and is intended solely for the use of the individual or entity named in this message. If you are not the intended recipient, and have received this message in error, please immediately return this by email and then delete it.