Merge
diff --git a/langtools/.hgtags b/langtools/.hgtags
index 479d0f6..64b3989 100644
--- a/langtools/.hgtags
+++ b/langtools/.hgtags
@@ -436,3 +436,4 @@
 0d0ac75b0f6cbe218362e3fac4bb443496e7258f jdk-9+176
 2f01728210c1405ef459e69d9c7247b5df6abb78 jdk-9+177
 2b9273266ea629ca686239c416a7ff8a592d822a jdk-10+15
+4070d214e88729006184a4abbe8f494fcec6afb6 jdk-10+16