Added tag jdk8u121-b31 for changeset 98275d24e21c
diff --git a/hotspot/.hgtags b/hotspot/.hgtags
index 874dc9e..6abc552 100644
--- a/hotspot/.hgtags
+++ b/hotspot/.hgtags
@@ -947,3 +947,4 @@
 11f91811e4d7e5ddfaf938dcf386ec8fe5bf7b7c jdk8u121-b11
 b132b08b28bf23a26329928cf6b4ffda5857f4d3 jdk8u121-b12
 90f94521c3515e5f27af0ab9b31d036e88bb322a jdk8u121-b13
+351bf1d4ff9a41137f91e2ec97ec59ed29a38d8b jdk8u121-b31