Goals

<!--- What do you want to achieve? -->
Trying to get an object from my Realm database

Expected Results

<!--- What did you expect to happen? -->
Successfully get the required object

Actual Results

<!--- What happened instead?
e.g. the stack trace of a crash
-->
I get a crash with an uncaught exception:

"Inside init: Current thread <NSThread: 0x600000075700>{number = 5, name = (null)}"
"Inside getObject: Current thread <NSThread: 0x600000075700>{number = 5, name = (null)}"
libc++abi.dylib: terminating with uncaught exception of type NSException

At first I thought it was a threading issue, but you can see that I init the Realm and getObject on the same thread.

Code Sample

<!---
Provide a code sample or test case that highlights the issue.
If relevant, include your model definitions.
For larger code samples, links to external gists/repositories are preferred.
Alternatively share confidentially via mail to help@realm.io.
Full Xcode projects that we can compile ourselves are ideal!
-->

private var database: Realm!

init(some_var: String) {
  var configuration = Realm.Configuration()
  configuration.fileURL = configuration.fileURL!.deletingLastPathComponent().appendingPathComponent("\(some_var).realm")
  do {
    debugPrint("Inside init: Current thread \(Thread.current)")
    self.database = try Realm(configuration: configuration)
  } catch {
    debugPrint("realmInit: Can't create realm database.")
  }
}

func getObject<T: Object, K>(with primaryKey: K) -> T? {
  debugPrint("Inside getObject: Current thread \(Thread.current)")
  return self.database.object(ofType: T.self, forPrimaryKey: primaryKey) // THIS LINE THROWS EXCEPTION
}

Version of Realm and Tooling

<!---
In the CONTRIBUTING guidelines, you will find a script,
which will help determining some of these versions.
-->
Realm framework version: 2.6.2

Realm Object Server version: N/A not using

Xcode version: 8.3.2

iOS/OSX version: OSX 10.12.3

Dependency manager + version: Cocoapods 1.1.1