Fix default isolation and auto commit (#484)

* Switch to spring/DB default isolation.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Fix dependency to uncommited isolation level in rollout management.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Corrected UQ checks

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Remove modifying annotation.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Disable autocommit on connection pool. Cleanups. Flush at commit.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Cleanups.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Fix Rollout UI performance.

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

* Typo fixed


Signed-off-by: Dominic Schabel <dominic.schabel@bosch-si.com>

* Remove empty lines

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

hawkbit-repository/hawkbit-repository-jpa/src/test/resources/application-test.properties

@@ -9,6 +9,7 @@
 
 logging.level.=INFO
 logging.level.org.eclipse.persistence=ERROR
+logging.level.org.eclipse.hawkbit.repository.test.matcher.EventVerifier=ERROR
 
 spring.data.mongodb.uri=mongodb://localhost/spArtifactRepository${random.value}
 spring.data.mongodb.port=28017
@@ -22,6 +23,7 @@ hawkbit.server.security.dos.maxAttributeEntriesPerTarget=10
 spring.jpa.database=H2
 spring.datasource.url=jdbc:h2:mem:sp-db;DB_CLOSE_ON_EXIT=FALSE
 spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.tomcat.default-auto-commit=false
 spring.datasource.username=sa
 spring.datasource.password=sa