Exception if cleanup called before any request handled

[OverDrone]

TusFileUploadService.cleanup() calls DiskStorageService.cleanupExpiredUploads(...) and DiskLockingService.cleanupStaleLocks() Those methods throw "directory does not exist" exception if not a single upload was processed, because private method AbstractDiskBasedService.init() was never called.

How to fix:

Call AbstractDiskBasedService.init() inside DiskStorageService.cleanupExpiredUploads(...) and DiskLockingService.cleanupStaleLocks()