--- old/jaxws/src/jdk.xml.ws/share/classes/com/sun/tools/internal/ws/wscompile/WsgenTool.java	2016-08-07 17:45:02.000000000 -0700
+++ new/jaxws/src/jdk.xml.ws/share/classes/com/sun/tools/internal/ws/wscompile/WsgenTool.java	2016-08-07 17:45:02.000000000 -0700
@@ -162,7 +162,7 @@
         boolean bootCP = useBootClasspath(EndpointReference.class) || useBootClasspath(XmlSeeAlso.class);
         List<String> args = new ArrayList<String>(6 + (bootCP ? 1 : 0) + (options.nocompile ? 1 : 0)
                 + (options.encoding != null ? 2 : 0));
-        args.add("-addmods");
+        args.add("--add-modules");
         args.add("java.xml.ws");
         args.add("-d");
         args.add(options.destDir.getAbsolutePath());