From d6ed90d5eb3c7ebaf87129030ad2497eefd75ff1 Mon Sep 17 00:00:00 2001
From: Viswanath Kuchibhotla <vishwanath_243@yahoo.com>
Date: Wed, 18 Dec 2024 23:13:33 +0530
Subject: [PATCH] Add only components with non zero nodes

---
 .../core/src/java/org/apache/lucene/util/hnsw/HnswUtil.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lucene/core/src/java/org/apache/lucene/util/hnsw/HnswUtil.java b/lucene/core/src/java/org/apache/lucene/util/hnsw/HnswUtil.java
index 313301e1345..7028a81808d 100644
--- a/lucene/core/src/java/org/apache/lucene/util/hnsw/HnswUtil.java
+++ b/lucene/core/src/java/org/apache/lucene/util/hnsw/HnswUtil.java
@@ -106,7 +106,9 @@ public class HnswUtil {
     } else {
       entryPoint = connectedNodes.nextSetBit(0);
     }
-    components.add(new Component(entryPoint, total));
+    if (total > 0) {
+      components.add(new Component(entryPoint, total));
+    }
     if (level == 0) {
       int nextClear = nextClearBit(connectedNodes, 0);
       while (nextClear != NO_MORE_DOCS) {