Fixed the tests

...s/src/main/java/at/tuwien/entities/database/Database.java

...es/src/main/java/at/tuwien/entities/database/License.java

...tories/src/main/java/at/tuwien/mapper/DatabaseMapper.java

...ice/src/main/java/at/tuwien/endpoints/AccessEndpoint.java

...src/main/java/at/tuwien/handlers/ApiExceptionHandler.java

...c/test/java/at/tuwien/config/KeycloakContainerConfig.java

...service/src/test/java/at/tuwien/config/MariaDbConfig.java

...test/java/at/tuwien/endpoints/AccessEndpointUnitTest.java

...t/java/at/tuwien/endpoints/ContainerEndpointUnitTest.java

...t/tuwien/endpoints/IdentifierEndpointIntegrationTest.java

.../java/at/tuwien/endpoints/IdentifierEndpointUnitTest.java

.../test/java/at/tuwien/endpoints/ImageEndpointUnitTest.java

...java/at/tuwien/endpoints/MaintenanceEndpointUnitTest.java

...va/at/tuwien/endpoints/MetadataEndpointComponentTest.java

...st/java/at/tuwien/endpoints/OntologyEndpointUnitTest.java

.../test/java/at/tuwien/endpoints/QueryEndpointUnitTest.java

...t/java/at/tuwien/endpoints/SemanticsEndpointUnitTest.java

...java/at/tuwien/endpoints/TableColumnEndpointUnitTest.java

...ava/at/tuwien/endpoints/TableEndpointIntegrationTest.java

.../test/java/at/tuwien/endpoints/TableEndpointUnitTest.java