disallow duplicate contact

1 files changed, 7 insertions, 0 deletions

diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/tenant/TenantContacts.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/tenant/TenantContacts.java
index 14635a3bb30..0e3101e4e52 100644
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/tenant/TenantContacts.java
+++ b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/tenant/TenantContacts.java
@@ -18,6 +18,13 @@ public class TenantContacts {
 
     public TenantContacts(List<? extends Contact> contacts) {
         this.contacts = List.copyOf(contacts);
+        for (int i = 0; i < contacts.size(); i++) {
+            for (int j = 0; j < i; j++) {
+                if (contacts.get(i).equals(contacts.get(j))) {
+                    throw new IllegalArgumentException("Duplicate contact: " + contacts.get(i));
+                }
+            }
+        }
     }
 
     public static TenantContacts empty() {