Fix Watson crash on null module names (#3940)

diff --git a/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs b/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs
index 39110a923a11d16a8d3324772e0881a6e4123852..ed88c377057582b99262103491becee34af9368c 100644 (file)
--- a/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs
+++ b/src/SOS/SOS.Extensions/ModuleServiceFromDebuggerServices.cs
@@ -86,7 +86,7 @@ namespace SOS.Extensions
             {
                 _moduleService = moduleService;
                 ModuleIndex = moduleIndex;
-                FileName = imageName;
+                FileName = imageName ?? string.Empty;
                 ImageBase = imageBase;
                 ImageSize = imageSize;
                 IndexFileSize = indexTimeStamp == InvalidTimeStamp ? null : indexFileSize;