From 484bc740d7cbfc801e6cc2d92e2114faca0ba3a2 Mon Sep 17 00:00:00 2001
From: Adam Hathcock <adamhathcock@users.noreply.github.com>
Date: Wed, 28 Jan 2026 08:26:28 +0000
Subject: [PATCH] Update src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
index 72787434..43618dbc 100644
--- a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
+++ b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
@@ -271,8 +271,15 @@ public class SevenZipArchive : AbstractArchive<SevenZipArchiveEntry, SevenZipVol
                 return CreateEntryStream(Stream.Null);
             }
 
-            var folder = entry.FilePart.Folder;
+            var filePart = (SevenZipFilePart)entry.FilePart;
+            if (!filePart.Header.HasStream)
+            {
+                // Entries with no underlying stream (e.g., empty files or anti-items)
+                // should return an empty stream, matching previous behavior.
+                return CreateEntryStream(Stream.Null);
+            }
 
+            var folder = filePart.Folder;
             // Check if we're starting a new folder - dispose old folder stream if needed
             if (folder != _currentFolder)
             {