Merge
diff --git a/langtools/.hgtags b/langtools/.hgtags
index 315de46..15dcf53 100644
--- a/langtools/.hgtags
+++ b/langtools/.hgtags
@@ -298,3 +298,4 @@
 99ff00581f3633c1787bec21f2a8f3a2ffe57665 jdk9-b53
 ed34864f3b43a7df394fce6c3f0bc86b70a5d686 jdk9-b54
 32a2e724988499e6f68611a65168c5f2fde0f6b9 jdk9-b55
+5ee7bba6ef41447f921184e8522da36734aec089 jdk9-b56