diff -r f5f590eaecf5 -r 3b41affae2d2 src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/RepositoryFiles.java
--- a/src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/RepositoryFiles.java	Fri Aug 02 20:05:23 2019 +0200
+++ b/src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/RepositoryFiles.java	Mon Aug 05 19:58:56 2019 +0200
@@ -53,7 +53,7 @@
     private volatile boolean closed;
 
     public RepositoryFiles(SafePath repository) {
-        this.repository = repository.toPath();
+        this.repository = repository == null ? null : repository.toPath();
     }
 
     public long getTimestamp(Path p) {