TST: fix tests

src/main/java/caosdb/server/CaosDBServer.java

src/main/java/caosdb/server/FileSystem.java

...caosdb/server/converter/misc/AbstractContainerHelper.java

...db/server/converter/misc/MultipartContainerConverter.java

...caosdb/server/converter/xml/EntityXMLConverterHelper.java

src/main/java/caosdb/server/converter/xml/XMLParser.java

...ntation/UnixFileSystem/UnixFileSystemGetFileIterator.java

src/main/java/caosdb/server/entity/Entity.java

src/main/java/caosdb/server/entity/EntityInterface.java

.../java/caosdb/server/entity/container/DeleteContainer.java

.../java/caosdb/server/entity/container/InsertContainer.java

...ava/caosdb/server/entity/container/RetrieveContainer.java

.../caosdb/server/entity/container/TransactionContainer.java

.../java/caosdb/server/entity/container/UpdateContainer.java

...ava/caosdb/server/entity/container/WritableContainer.java

...main/java/caosdb/server/entity/wrapper/EntityWrapper.java

src/main/java/caosdb/server/jobs/Job.java

src/main/java/caosdb/server/jobs/core/InsertFilesInDir.java

.../caosdb/server/resource/AbstractCaosDBServerResource.java

...n/java/caosdb/server/resource/AuthenticationResource.java