--- a/make/jdk/src/classes/build/tools/classlist/HelloClasslist.java	Sat Aug 17 06:20:49 2019 -0700
+++ b/make/jdk/src/classes/build/tools/classlist/HelloClasslist.java	Mon Aug 19 06:13:52 2019 +0200
@@ -32,6 +32,7 @@
 package build.tools.classlist;
 
 import java.net.InetAddress;
+import java.nio.file.FileSystems;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
@@ -56,6 +57,8 @@
 
     public static void main(String ... args) {
 
+        FileSystems.getDefault();
+
         List<String> strings = Arrays.asList("Hello", "World!", "From: ",
               InetAddress.getLoopbackAddress().toString());