The Java 8 development server runs on your local machine and emulates most of the Search API's capabilities.
A few features are not available on the server. You should not attempt to use the following features when you run on the development server:
Stemming of field values (for example "~cat") is not implemented.
String fields in Asian languages are not tokenized on the development server.
The match scoring mechanism is not implemented.
Diacritical marks (such as accent marks) cannot be used in atom, text, and HTML fields.