fix: missing import

o-s-expert · Oct 3, 2023 · a9cc124 · a9cc124
1 parent 8565441
commit a9cc124
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/04-column/src/main/java/expert/os/labs/persistence/DirectorBuilder.java b/04-column/src/main/java/expert/os/labs/persistence/DirectorBuilder.java
@@ -12,6 +12,7 @@
 package expert.os.labs.persistence;
 
 import java.util.Set;
+import java.util.HashSet;
 
 public class DirectorBuilder {