--- a/langtools/src/jdk.jshell/share/classes/jdk/jshell/Snippet.java	Tue Aug 15 13:16:32 2017 -0700
+++ b/langtools/src/jdk.jshell/share/classes/jdk/jshell/Snippet.java	Wed Aug 16 18:42:11 2017 -0700
@@ -552,6 +552,8 @@
         }
     }
 
+    static final String UNASSOCIATED_ID = "*UNASSOCIATED*";
+
     private final Key key;
     private final String source;
     private final Wrap guts;