diff --git a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
index b3120b1b..3f419541 100644
--- a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
+++ b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
@@ -130,12 +130,12 @@ public class SevenZipArchive : AbstractArchive<SevenZipArchiveEntry, SevenZipVol
         IEnumerable<SevenZipVolume> volumes
     )
     {
+        var stream = volumes.Single().Stream;
+        LoadFactory(stream);
         if (database is null)
         {
             return Enumerable.Empty<SevenZipArchiveEntry>();
         }
-        var stream = volumes.Single().Stream;
-        LoadFactory(stream);
         var entries = new SevenZipArchiveEntry[database._files.Count];
         for (var i = 0; i < database._files.Count; i++)
         {
@@ -260,6 +260,6 @@ public class SevenZipArchive : AbstractArchive<SevenZipArchiveEntry, SevenZipVol
 
         public PasswordProvider(string? password) => _password = password;
 
-        public string CryptoGetTextPassword() => _password.NotNull();
+        public string? CryptoGetTextPassword() => _password;
     }
 }
diff --git a/src/SharpCompress/Compressors/LZMA/AesDecoderStream.cs b/src/SharpCompress/Compressors/LZMA/AesDecoderStream.cs
index 8e884c97..ecec4f29 100644
--- a/src/SharpCompress/Compressors/LZMA/AesDecoderStream.cs
+++ b/src/SharpCompress/Compressors/LZMA/AesDecoderStream.cs
@@ -20,7 +20,8 @@ internal sealed class AesDecoderStream : DecoderStream2
 
     public AesDecoderStream(Stream input, byte[] info, IPasswordProvider pass, long limit)
     {
-        if (pass.CryptoGetTextPassword() == null)
+        var password = pass.CryptoGetTextPassword();
+        if (password == null)
         {
             throw new SharpCompress.Common.CryptographicException(
                 "Encrypted 7Zip archive has no password specified."
@@ -37,8 +38,8 @@ internal sealed class AesDecoderStream : DecoderStream2
 
         Init(info, out var numCyclesPower, out var salt, out var seed);
 
-        var password = Encoding.Unicode.GetBytes(pass.CryptoGetTextPassword());
-        var key = InitKey(numCyclesPower, salt, password);
+        var passwordBytes = Encoding.Unicode.GetBytes(password);
+        var key = InitKey(numCyclesPower, salt, passwordBytes);
         if (key == null)
         {
             throw new InvalidOperationException("Initialized with null key");
diff --git a/src/SharpCompress/Compressors/LZMA/Utilites/IPasswordProvider.cs b/src/SharpCompress/Compressors/LZMA/Utilites/IPasswordProvider.cs
index 2f0eb904..d7d787d2 100644
--- a/src/SharpCompress/Compressors/LZMA/Utilites/IPasswordProvider.cs
+++ b/src/SharpCompress/Compressors/LZMA/Utilites/IPasswordProvider.cs
@@ -2,5 +2,5 @@ namespace SharpCompress.Compressors.LZMA.Utilites;
 
 internal interface IPasswordProvider
 {
-    string CryptoGetTextPassword();
+    string? CryptoGetTextPassword();
 }