diff -r 6c306d54366d -r a390cbb82d47 src/jdk.jfr/share/classes/jdk/jfr/internal/Repository.java
--- a/src/jdk.jfr/share/classes/jdk/jfr/internal/Repository.java	Sun Jun 24 16:25:47 2018 +0100
+++ b/src/jdk.jfr/share/classes/jdk/jfr/internal/Repository.java	Mon Jun 25 02:07:42 2018 +0200
@@ -41,7 +41,7 @@
     private static final JVM jvm = JVM.getJVM();
     private static final Repository instance = new Repository();
 
-    static DateTimeFormatter REPO_DATE_FORMAT = DateTimeFormatter
+    public final static DateTimeFormatter REPO_DATE_FORMAT = DateTimeFormatter
             .ofPattern("yyyy_MM_dd_HH_mm_ss");
 
     private final Set<SafePath> cleanupDirectories = new HashSet<>();