--- a/src/java.net.http/share/classes/jdk/internal/net/http/common/HttpHeadersImpl.java	Thu Feb 22 17:33:21 2018 +0000
+++ b/src/java.net.http/share/classes/jdk/internal/net/http/common/HttpHeadersImpl.java	Fri Feb 23 16:25:32 2018 +0000
@@ -70,4 +70,8 @@
         values.add(value);
         headers.put(name, values);
     }
+
+    public void clear() {
+        headers.clear();
+    }
 }