diff --git a/langtools/.hgtags b/langtools/.hgtags
index 7cda17178b9065d22990371e34eab827a8980377..8f925814ec2eb6782e20a92c39e42e92886cde76 100644
--- a/langtools/.hgtags
+++ b/langtools/.hgtags
@@ -259,3 +259,4 @@ f04fccfbd880c819affc3ef33e0083aab9556409 jdk9-b11
 1df3f53b9d980b66739f05e14053381ffb0f38ee jdk9-b14
 8666a9611eb8ba711b001bf8d942282e3e2d8e3d jdk9-b15
 7d67ebd3e35c3c36ad2caee482a84f8310d2f838 jdk9-b16
+b64f8d5b97faa29e4d629bf4e56ebe0e26c40ecc jdk9-b17