Fixes https://build.spring.io/browse/INT-MJATS41-593 * Fix `LoggingHandler` JavaDoc * Fix `JdbcOutboundGatewayParserTests` timing and race condition issues * Add `mock(BeanFactory.class)` to the `JpaOutboundChannelAdapterTests` for `JpaExecutor` * Fix `JpaOutboundChannelAdapterTests` for the incorrect transaction usage