--- old/make/langtools/build.properties	2018-04-12 12:51:05.872520616 -0700
+++ new/make/langtools/build.properties	2018-04-12 12:51:05.628509966 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2007, 2017, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2007, 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
@@ -40,7 +40,8 @@
                jdk.jshell
 
 langtools.resource.includes = \
-        com/sun/tools/javac/resources/compiler.properties
+        com/sun/tools/javac/resources/compiler.properties \
+        com/sun/tools/javac/resources/launcher.properties
 
 # Version info -- override as needed
 jdk.version = 9