Spring: @Transactional rolls back on unchecked exceptions only

RuntimeException and Error trigger a rollback; a checked exception commits unless you say otherwise.

Code

@Transactional
public void a() throws Exception {
    save();
    throw new Exception("checked");   // COMMITS
}

@Transactional(rollbackFor = Exception.class)
public void b() throws Exception {
    save();
    throw new Exception("checked");   // rolls back
}

Output

a(): the row is still there.
b(): the row is gone.

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Published 2026-08-11