Enhance logging capabilities

Implemented error logging for cases when processing file diffs
encounters an error.

Jira-Id: IT-103
Change-Id: I8774d7c0526c2baa6260e69a49b48f72ef47f7e5
Signed-off-by: Patrizio <patrizio.gelosi@amarulasolutions.com>
diff --git a/src/main/java/com/googlesource/gerrit/plugins/chatgpt/client/GerritClientPatchSet.java b/src/main/java/com/googlesource/gerrit/plugins/chatgpt/client/GerritClientPatchSet.java
index 3729be3..0bb5aa2 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/chatgpt/client/GerritClientPatchSet.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/chatgpt/client/GerritClientPatchSet.java
@@ -87,7 +87,7 @@
                 newFileContent.addAll(fieldValue);
             }
         } catch (IllegalAccessException | NoSuchFieldException e) {
-            e.printStackTrace();
+            log.error("Error while processing file difference (field name: {})", fieldName, e);
         }
     }