fix headers

Author: SentryMan

http-generator-nima/src/main/java/io/avaje/http/generator/helidon/nima/NimaPlatformAdapter.java

@@ -74,7 +74,7 @@ public void writeReadParameter(Append writer, ParamType paramType, String paramN
         writer.append("formParams.first(\"%s\").orElse(null)", paramName);
         break;
       case HEADER:
-        writer.append("req.headers().value(Http.Header.create(\"%s\").orElse(null)", paramName);
+        writer.append("req.headers().value(io.helidon.common.http.Http.Header.create(\"%s\")).orElse(null)", paramName);
         break;
       case COOKIE:
         writer.append("req.headers().cookies().first(\"%s\").orElse(null)", paramName);

tests/test-nima-jsonb/src/main/java/org/example/HelloController.java

@@ -7,6 +7,7 @@
 import io.avaje.http.api.Controller;
 import io.avaje.http.api.Form;
 import io.avaje.http.api.Get;
+import io.avaje.http.api.Header;
 import io.avaje.http.api.MediaType;
 import io.avaje.http.api.Post;
 import io.avaje.http.api.Produces;
@@ -38,6 +39,7 @@ byte[] testBytes() {
 
   @Get("/helidon")
   void testHelidon(ServerRequest req, ServerResponse res) {
+
     res.headers().contentType(HttpMediaType.TEXT_PLAIN);
     res.send("success path:" + req.path());
   }
@@ -47,6 +49,11 @@ void testVoid(ServerResponse res) {
     res.send("GET-Returning-void");
   }
 
+  @Get("/header")
+  String testHeader(@Header String head) {
+    return head;
+  }
+
   // curl -v localhost:8081/person/jack
   @Get("person/{name}")
   Person person(String name) {