From 504a43fc479d884085df9895900608dc5b0aca6f Mon Sep 17 00:00:00 2001
From: Valery Kharseko <vharseko@3a-systems.ru>
Date: Fri, 31 Jul 2026 07:52:35 +0000
Subject: [PATCH] Fix CodeQL warning-severity alerts: dead checks, boxed locals and three null dereferences (#793)

---
 opendj-server-legacy/src/main/java/org/opends/server/backends/pluggable/RootContainer.java |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/opendj-server-legacy/src/main/java/org/opends/server/backends/pluggable/RootContainer.java b/opendj-server-legacy/src/main/java/org/opends/server/backends/pluggable/RootContainer.java
index e2fe9af..1adc22a 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/backends/pluggable/RootContainer.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/backends/pluggable/RootContainer.java
@@ -13,6 +13,7 @@
  *
  * Copyright 2006-2010 Sun Microsystems, Inc.
  * Portions Copyright 2011-2016 ForgeRock AS.
+ * Portions Copyright 2026 3A Systems, LLC.
  */
 package org.opends.server.backends.pluggable;
 
@@ -229,7 +230,8 @@
       }
     }
 
-    nextEntryID = new AtomicLong(highestID.longValue() + 1);
+    // highestID is null when there was no base DN to open, in which case numbering starts at 1.
+    nextEntryID = new AtomicLong(highestID != null ? highestID.longValue() + 1 : 1);
   }
 
   /**

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