--- old/src/java.xml.bind/share/classes/javax/xml/bind/ModuleUtil.java	2017-10-24 14:21:31.692129959 +0100
+++ new/src/java.xml.bind/share/classes/javax/xml/bind/ModuleUtil.java	2017-10-24 14:21:31.400129960 +0100
@@ -130,9 +130,6 @@
      */
     static void delegateAddOpensToImplModule(Class[] classes, Class<?> factorySPI) throws JAXBException {
         final Module implModule = factorySPI.getModule();
-        if (!implModule.isNamed()) {
-            return;
-        }
 
         Module jaxbModule = JAXBContext.class.getModule();