--- a/src/jdk.packager/share/classes/jdk/packager/internal/RelativeFileSet.java	Fri Oct 19 08:57:13 2018 -0400
+++ b/src/jdk.packager/share/classes/jdk/packager/internal/RelativeFileSet.java	Fri Oct 19 19:29:20 2018 -0400
@@ -30,6 +30,11 @@
 import java.util.LinkedHashSet;
 import java.util.Set;
 
+/**
+ * RelativeFileSet
+ *
+ * A class encapsulating a directory and a set of files within it.
+ */
 public class RelativeFileSet {
 
     private String mode;