--- a/src/jdk.jfr/share/classes/jdk/jfr/consumer/ConstantMap.java	Fri May 24 19:39:31 2019 +0200
+++ b/src/jdk.jfr/share/classes/jdk/jfr/consumer/ConstantMap.java	Fri May 24 20:30:12 2019 +0200
@@ -25,6 +25,8 @@
 
 package jdk.jfr.consumer;
 
+import jdk.jfr.internal.LongMap;
+
 /**
  * Holds mapping between a set of keys and their corresponding object.
  *