JavaInitializerSpec

JavaInitializerSpec.patch

diff --git i/akka-http-core/src/test/scala/akka/http/javadsl/JavaInitializationSpec.scala w/akka-http-core/src/test/scala/akka/http/javadsl/JavaInitializationSpec.scala
index da49fcdfaf..9107486305 100644
--- i/akka-http-core/src/test/scala/akka/http/javadsl/JavaInitializationSpec.scala
+++ w/akka-http-core/src/test/scala/akka/http/javadsl/JavaInitializationSpec.scala
@@ -8,12 +8,21 @@ import org.scalatest.{ Matchers, WordSpec }

 class JavaInitializationSpec extends WordSpec with Matchers {

+  implicit class HeaderCheck[T](self: T) {
+    def =!=(expected: String) = self.toString shouldBe expected
+  }
+
   "LanguageRange" should {

     "initializes the right field" in {
-      akka.http.scaladsl.model.headers.LanguageRange.`*` // first we touch the scala one, it should force init the Java one
-      val _ = akka.http.javadsl.model.headers.LanguageRange.ALL // touching this one should not fail
-      akka.http.javadsl.model.headers.LanguageRanges.ALL // this is recommended and should work well too
+      // Uncommenting the following line fixes the NPE
+      // akka.http.javadsl.model.headers.HttpOriginRange.ALL =!= "*"
+      akka.http.scaladsl.model.headers.HttpOriginRange.`*` =!= "*"
+
+      akka.http.scaladsl.model.headers.LanguageRange.`*` =!= "*" // first we touch the scala one, it should force init the Java one
+      akka.http.javadsl.model.headers.AccessControlAllowOrigin.create(akka.http.javadsl.model.headers.HttpOriginRange.ALL) =!= "Access-Control-Allow-Origin: *"
+      akka.http.javadsl.model.headers.LanguageRange.ALL =!= "*" // touching this one should not fail
+      akka.http.javadsl.model.headers.LanguageRanges.ALL =!= "*" // this is recommended and should work well too
     }
   }
 }

Log

[info] LanguageRange
[info] - should initializes the right field *** FAILED ***
[info]   java.lang.NullPointerException:
[info]   at akka.http.impl.util.Renderer$RenderableRenderer$.render(Rendering.scala:109)
[info]   at akka.http.impl.util.Renderer$RenderableRenderer$.render(Rendering.scala:108)
[info]   at akka.http.impl.util.Rendering$class.$tilde$tilde(Rendering.scala:194)
[info]   at akka.http.impl.util.StringRendering.$tilde$tilde(Rendering.scala:238)
[info]   at akka.http.scaladsl.model.headers.Access$minusControl$minusAllow$minusOrigin.renderValue(headers.scala:258)
[info]   at akka.http.scaladsl.model.headers.ModeledHeader$class.render(headers.scala:64)
[info]   at akka.http.scaladsl.model.headers.Access$minusControl$minusAllow$minusOrigin.render(headers.scala:256)
[info]   at akka.http.impl.util.ToStringRenderable$class.toString(Rendering.scala:37)
[info]   at akka.http.scaladsl.model.HttpHeader.toString(HttpHeader.scala:27)
[info]   at akka.http.javadsl.JavaInitializationSpec$HeaderCheck.$eq$bang$eq(JavaInitializationSpec.scala:12)
[info]   ...