Juergen Hoeller 3b263c5c3d Synchronize transaction begin for non-lazy default transactions as well ...

Lazy and read-only database transactions remain exposed to potential isolation level mismatches in case of concurrent transactions with custom isolation levels.

Closes gh-29997

2023-06-13 12:40:57 +02:00

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main

Synchronize transaction begin for non-lazy default transactions as well

2023-06-13 12:40:57 +02:00

test

Add isolation level test and restore null return value from beginTransaction

2023-06-04 18:41:38 +02:00