Fixed the tests after ~8h

...st/java/at/tuwien/service/PersistenceIntegrationTest.java

...ce/rest-service/src/test/resources/application.properties

...rc/main/java/at/tuwien/service/impl/ImageServiceImpl.java

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

...est/java/at/tuwien/endpoint/DatabaseEndpointUnitTest.java

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

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

.../java/at/tuwien/service/DatabaseServiceComponentTest.java

...ce/rest-service/src/test/resources/application.properties

...tabase-service/rest-service/src/test/resources/schema.sql

...t/tuwien/entities/database/table/columns/TableColumn.java

...n/entities/database/table/columns/TableColumnConcept.java

...wien/entities/database/table/columns/TableColumnUnit.java

...st/java/at/tuwien/endpoints/MetadataEndpointUnitTest.java

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

...ava/at/tuwien/service/MetadataServiceIntegrationTest.java

...tadata-service/rest-service/src/test/resources/schema.sql

...a/at/tuwien/listener/RabbitMqListenerIntegrationTest.java

...a/at/tuwien/repository/ViewRepositoryIntegrationTest.java

...va/at/tuwien/service/TableServiceIntegrationReadTest.java