Differentiating between invalid path and a search that returns 0 results

[ssteiner]

The SearchRequestHandler returns ResultCodeEnum.NoSuchObject whenever the search yields 0 results.
But, is that correct? I'd say yes if the path is invalid (e.g. doesn't exist), but when there's 0 results because the search term was too restrictive, a success result is more appropriate.
I've only ever been a consumer of LDAP servers, but I generally only get a 'no such object' error when I specify an invalid path. When a search yields 0 results, I get a success result with 0 results instead.