--- a/make/conf/jib-profiles.js	Mon Oct 09 13:11:25 2017 -0700
+++ b/make/conf/jib-profiles.js	Tue Oct 10 03:54:49 2017 +0200
@@ -1063,7 +1063,7 @@
         jtreg: {
             server: "javare",
             revision: "4.2",
-            build_number: "b08",
+            build_number: "b09",
             checksum_file: "MD5_VALUES",
             file: "jtreg_bin-4.2.zip",
             environment_name: "JT_HOME",