Add SimpleBackOff to avoid LockTimeout-s.
adding delay before positioning tiles in the viewer, see #6850

this will prevent from loading tiles when user triggered another action
for example: if user zooms using mouse-wheel it will load only
tiles from the final level rather then all levels
adding delay value to the vieport
fixing delay param in bird eye, close #6850
Clean up code.
Specify the group is only one displayed.
Remove unused import
Allow to modify the default group.
Modify constructor.

The groups parameter was not used.
Review the default context when starting importer.
Clean up code.
Display the groups the user is a member of.
Allow to change the default group.
Clean up and handle error.
Set the default group when switching user.
Add JvmSettingsCheck on startup of Java components

Max. memory, OS memory, and the number of processors are
now printed on startup. This should help to debug cases
where the Xmx settings for the processes have not been
reset in production.

See:
https://www.openmicroscopy.org/community/viewtopic.php?f=5&t=6471
Include JvmSettingsCheck in startup
Add java.version and os.* to INFO
Do not modify the default group when logging out.
Save after clicking on the save button.