diff -r 12f989542165 -r de9a02e20567 langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties
--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Fri Jan 20 09:26:49 2017 +0100
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties	Fri Jan 20 13:20:42 2017 +0100
@@ -1535,6 +1535,10 @@
 compiler.warn.poor.choice.for.module.name=\
     module name {0} should avoid terminal digits
 
+# 0: string
+compiler.warn.incubating.modules=\
+    using incubating module(s): {0}
+
 # 0: symbol, 1: symbol
 compiler.warn.has.been.deprecated=\
     {0} in {1} has been deprecated