Merge pull request graphql-java#20 from nfl/master

andimarek · andimarek · commit eca9167a639a · 2015-09-06T19:26:42.000+02:00
mutationType is optional
diff --git a/src/main/java/graphql/introspection/Introspection.java b/src/main/java/graphql/introspection/Introspection.java
@@ -380,7 +380,7 @@ public Object get(DataFetchingEnvironment environment) {
             .field(newFieldDefinition()
                     .name("mutationType")
                     .description("If this server supports mutation, the type that mutation operations will be rooted at.")
-                    .type(new GraphQLNonNull(__Type))
+                    .type(__Type)
                     .dataFetcher(new DataFetcher() {
                         @Override
                         public Object get(DataFetchingEnvironment environment) {
