Fixed some tests

.../test/java/at/tuwien/endpoint/AccessEndpointUnitTest.java

...c/test/java/at/tuwien/endpoint/ActuatorComponentTest.java

...test/java/at/tuwien/endpoint/LicenseEndpointUnitTest.java

...rc/test/java/at/tuwien/endpoint/SwaggerComponentTest.java

...test/java/at/tuwien/gateway/BrokerServiceGatewayTest.java

...ce/src/test/java/at/tuwien/mapper/DatabaseMapperTest.java

.../java/at/tuwien/service/AccessServiceIntegrationTest.java

...rc/test/java/at/tuwien/service/AccessServiceUnitTest.java

.../test/java/at/tuwien/service/DatabaseServiceUnitTest.java

...a/at/tuwien/service/IdentifierServiceIntegrationTest.java

...java/at/tuwien/service/LicenseServiceIntegrationTest.java

...at/tuwien/service/MessageQueueServiceIntegrationTest.java

...t/java/at/tuwien/service/MessageQueueServiceUnitTest.java

...st/java/at/tuwien/service/UserServiceIntegrationTest.java

dbrepo-identifier-service/pom.xml

...ava/at/tuwien/service/DatabaseServiceIntegrationTest.java