@@ -0,0 +1,50 @@
+package org.jooby.issues;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+import org.jooby.MediaType;
+import org.jooby.Results;
+import org.jooby.json.Jackson;
+import org.jooby.test.ServerFeature;
+import org.junit.Test;
+
+public class Issue482 extends ServerFeature {
+
+  static class Raw {
+
+    String value;
+
+    public Raw(final String value) {
+      this.value = value;
+    }
+
+  }
+
+  {
+    /** Raw JSON renderer .*/
+    renderer((value, ctx) -> {
+      if (value instanceof String && ctx.accepts(MediaType.json)) {
+        ctx.send(value.toString());
+      }
+    });
+
+    use(new Jackson());
+
+    Executor exec = Executors.newSingleThreadExecutor();
+
+    get("/482/raw", promise(deferred -> {
+      exec.execute(deferred.run(() -> Results.json("{\"status\":\"success\"}")));
+    }));
+
+  }
+
+  @Test
+  public void shouldAcceptResultsFromDeferredAPI() throws Exception {
+    request()
+        .get("/482/raw")
+        .expect("{\"status\":\"success\"}")
+        .header("Content-Type", "application/json;charset=UTF-8");
+  }
+
+}
@@ -205,8 +205,14 @@ public void resolve(final Object value) {
     if (value == null) {
       handler.handle(null, null);
     } else {
-      super.set(value);
-      handler.handle(clone(), null);
+      Result result;
+      if (value instanceof Result) {
+        result = (Result) value;
+      } else {
+        super.set(value);
+        result = clone();
+      }
+      handler.handle(result, null);
     }
   }