diff --git a/F4SDM42WebApi/F4SDHelperService.cs b/F4SDM42WebApi/F4SDHelperService.cs
index f59bb20..69ad613 100644
--- a/F4SDM42WebApi/F4SDHelperService.cs
+++ b/F4SDM42WebApi/F4SDHelperService.cs
@@ -1408,22 +1408,29 @@ namespace C4IT.F4SD
             {
                 await Task.Delay(0);
                 List<cTicketJournalItem> journalEntries = new List<cTicketJournalItem>();
-                var entries = F4SDM42WebApiController.defaultInstance.GetJournalService().GetJournalList(activityEOID, false, 0, 50, "<a href=\"#\" class=\"mx-object-journal--link {0} {1}\">{2}</a>", 120);
+                var entries = GetJournalList(activityEOID);
                 LogEntry($"{entries.Length} Journal entries found for ObjectID={activityEOID}", LogLevels.Debug);
                 for (int i = 0; i < entries.Length; i++)
                 {
-                    Matrix42.Contracts.Platform.Data.JournalEntryInfo item = entries[i];
-                    LogEntry($"Journal entry {i + 1}/{entries.Length}: ID={item.Id}, CreatedDate={item.CreatedDate}, CreatedBy={item.Creator}, Header={item.Header}", LogLevels.Debug);
+                    var item = entries.GetValue(i);
+                    var journalId = GetJournalEntryValue(item, "Id", Guid.Empty);
+                    var createdDate = GetJournalEntryValue(item, "CreatedDate", DateTime.MinValue);
+                    var creator = GetJournalEntryValue(item, "Creator", string.Empty);
+                    var text = GetJournalEntryValue(item, "Text", string.Empty);
+                    var header = GetJournalEntryValue(item, "Header", string.Empty);
+                    var visibleInPortal = GetJournalEntryValue(item, "VisibleInPortal", false);
+
+                    LogEntry($"Journal entry {i + 1}/{entries.Length}: ID={journalId}, CreatedDate={createdDate}, CreatedBy={creator}, Header={header}", LogLevels.Debug);
                     journalEntries.Add(new cTicketJournalItem()
                     {
-                        JournalId = item.Id,
+                        JournalId = journalId,
                         ActivityObjectId = activityEOID,
-                        CreatedBy = item.Creator,
-                        CreationDate = (DateTime)item.CreatedDate,
-                        DescriptionHtml = item.Text,
-                        Description = Matrix42.Common.Html.HtmlConverter.ConvertHtmlToPlainText(item.Text),
-                        Header = item.Header,
-                        IsVisibleForUser = item.VisibleInPortal
+                        CreatedBy = creator,
+                        CreationDate = createdDate,
+                        DescriptionHtml = text,
+                        Description = string.IsNullOrEmpty(text) ? string.Empty : Matrix42.Common.Html.HtmlConverter.ConvertHtmlToPlainText(text),
+                        Header = header,
+                        IsVisibleForUser = visibleInPortal
                     });
                 }
                 return journalEntries;
@@ -1439,6 +1446,47 @@ namespace C4IT.F4SD
             }
         }
 
+        private static Array GetJournalList(Guid activityEOID)
+        {
+            var journalService = F4SDM42WebApiController.defaultInstance.GetJournalService();
+            var method = FindJournalListMethod(journalService.GetType());
+            if (method == null)
+                throw new MissingMethodException(journalService.GetType().FullName, "GetJournalList(Guid, Boolean, Int32, Int32, String, Int32)");
+
+            return method.Invoke(journalService, new object[]
+            {
+                activityEOID,
+                false,
+                0,
+                50,
+                "<a href=\"#\" class=\"mx-object-journal--link {0} {1}\">{2}</a>",
+                120
+            }) as Array ?? Array.Empty<object>();
+        }
+
+        private static MethodInfo FindJournalListMethod(Type serviceType)
+        {
+            var parameterTypes = new[] { typeof(Guid), typeof(bool), typeof(int), typeof(int), typeof(string), typeof(int) };
+            return new[] { serviceType }
+                .Concat(serviceType.GetInterfaces())
+                .Select(type => type.GetMethod("GetJournalList", parameterTypes))
+                .FirstOrDefault(method => method != null);
+        }
+
+        private static T GetJournalEntryValue<T>(object entry, string propertyName, T defaultValue)
+        {
+            var property = entry?.GetType().GetProperty(propertyName);
+            var value = property?.GetValue(entry);
+            if (value == null || value == DBNull.Value)
+                return defaultValue;
+
+            if (value is T typedValue)
+                return typedValue;
+
+            var targetType = Nullable.GetUnderlyingType(typeof(T)) ?? typeof(T);
+            return (T)Convert.ChangeType(value, targetType, CultureInfo.InvariantCulture);
+        }
+
         internal async Task<bool> updateActivitySolution(Guid objectId, string solutionHtml)
         {