vertx: 1 CWE-407 defect — HAManager nodeLeft List.contains O(N×M) in cluster failover loop

defects/vertx/patch/vertx-0001-hamanger-nodelist-contains.patch

@@ -0,0 +1,24 @@
+# UNDF: UNDF-2026-000000570
+--- a/vertx-core/src/main/java/io/vertx/core/impl/HAManager.java
++++ b/vertx-core/src/main/java/io/vertx/core/impl/HAManager.java
+@@ -304,15 +304,15 @@ public class HAManager {
+       // We also check for and potentially resume any previous failovers that might have failed
+       // We can determine this if there any ids in the cluster map which aren't in the node list
+-      List<String> nodes = clusterManager.getNodes();
++      Set<String> nodes = new HashSet<>(clusterManager.getNodes());
+
+       for (Map.Entry<String, String> entry: clusterMap.entrySet()) {
+         if (!leftNodeID.equals(entry.getKey()) && !nodes.contains(entry.getKey())) {
+           JsonObject haInfo = new JsonObject(entry.getValue());
+           checkFailover(entry.getKey(), haInfo);
+         }
+       }
+     }
+   }
+
+   private void addHaInfoIfLost() {
+-    if (clusterManager.getNodes().contains(nodeID) && !clusterMap.containsKey(nodeID)) {
++    if (new HashSet<>(clusterManager.getNodes()).contains(nodeID) && !clusterMap.containsKey(nodeID)) {
+       synchronized (haInfo) {
+         clusterMap.put(nodeID, haInfo.encode());
+       }