How to get the Snapshot URI details from a given Snapshot name using Java APIs

I don't know, but I woould assume you have to cunstruct it somehow. Parts of the URI can be taken from the teamrepository/origin. The end part is the Snapsuot UUID. I would search the SDK.

For a work item, I think I did something like this:

Location location = Location.namedLocation(workItem,    ((ITeamRepository) workItem.getOrigin()).publicUriRoot());

To get the base URI for the repository.

The com.ibm.team.links.common.factory.IReferenceFactory has different ways to create references. Dependent on them, the links are created differently.

that is all I can hint at.