Added tag jdk9-b31 for changeset fe7c921b71f0
diff --git a/jdk/.hgtags b/jdk/.hgtags
index bea594c..51363da 100644
--- a/jdk/.hgtags
+++ b/jdk/.hgtags
@@ -273,3 +273,4 @@
 1828f73b35cfe35e460e41fd6e087ab1f83e0621 jdk9-b28
 2da27e8e2c865e154f0c2eb9009f011a44649b11 jdk9-b29
 8d24fb4493f13d380a2adf62d444e1e5a4451f37 jdk9-b30
+71e99dae28f9791287b88d46e16a266b564f22be jdk9-b31