made properties in get_samples(), get_experiments(), get_datasets() more robust

SSDM-9541: identifies entities to be synced by perm is (as it was before). dry run for timstamps and freezing flag, log improved

SSDM-9597 Fixed failing java tests (mostly authorization issues) after the paging logic has been fixed.

SSDM-9543: Bug fixed in MonitoredIOStreamCopier: Main thread is blocked when writing throws exception and queue is full