org.eclipse.microprofile.graphql

## Annotation Type NonNull

    @Retention(value=RUNTIME)
     @Target(value={TYPE_USE,METHOD,FIELD,PARAMETER})
     @Documented
    public @interface NonNull

Specifies that the GraphQL type and/or input type represented by the Java field this annotation is applied to must be marked as non-null in the schema.
For example, a user might annotate a class' property as such:

      @Type("Starship")
      @Input("StarshipInput")
     public class Starship {
         private String id;
          @NonNull
         private String name;
         private float length;

         // getters/setters...
     }

Schema generation of this would result in a stanza such as:

     type Starship {
       id: String
       name: String!
       length: Float!
     }

     input StarshipInput {
       id: String
       name: String!
       length: Float!
     }

Note that all primitive fields/properties are automatically considered non-null unless they are also annotated with a `DefaultValue` annotation.