diff -r ecb8bff00bfd -r 09b083e0759c src/share/jaxws_classes/com/sun/xml/internal/ws/api/streaming/XMLStreamWriterFactory.java
--- a/src/share/jaxws_classes/com/sun/xml/internal/ws/api/streaming/XMLStreamWriterFactory.java	Tue Apr 24 12:17:05 2018 -0700
+++ b/src/share/jaxws_classes/com/sun/xml/internal/ws/api/streaming/XMLStreamWriterFactory.java	Mon Apr 23 13:24:44 2018 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -386,7 +386,7 @@
 
     }
 
-    private static class HasEncodingWriter extends XMLStreamWriterFilter implements HasEncoding {
+    public static class HasEncodingWriter extends XMLStreamWriterFilter implements HasEncoding {
         private final String encoding;
 
         HasEncodingWriter(XMLStreamWriter writer, String encoding) {
@@ -399,7 +399,7 @@
             return encoding;
         }
 
-        XMLStreamWriter getWriter() {
+        public XMLStreamWriter getWriter() {
             return writer;
         }
     }