Lee Hinman 697f3f1a3b
Factor UnknownNamedObjectException into its own class (#28931)
* Factor UnknownNamedObjectException into its own class

This moves the inner class `UnknownNamedObjectException` from
`NamedXContentRegistry` into a top-level class. This is so that
`NamedXContentRegistry` doesn't have to depend on StreamInput and StreamOutput.

Relates to #28504
2018-03-08 15:32:41 -07:00
..
2018-01-11 11:30:43 -07:00