tamirsagi commented on code in PR #539:
URL: 
https://github.com/apache/flink-kubernetes-operator/pull/539#discussion_r1121282661


##########
flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/reconciler/diff/DiffResult.java:
##########
@@ -59,18 +63,48 @@ public String toString() {
             return "";
         }
 
-        final ToStringBuilder lhsBuilder =
-                new ToStringBuilder(left, ToStringStyle.SHORT_PREFIX_STYLE);
-        final ToStringBuilder rhsBuilder =
-                new ToStringBuilder(right, ToStringStyle.SHORT_PREFIX_STYLE);
+        final StringBuilder builder = new StringBuilder();
+        builder.append(left.getClass().getSimpleName()).append("[");
 
         diffList.forEach(
                 diff -> {
-                    lhsBuilder.append(diff.getFieldName(), diff.getLeft());
-                    rhsBuilder.append(diff.getFieldName(), diff.getRight());
+                    try {
+                        JsonNode before =
+                                objectMapper.readTree(
+                                        
objectMapper.writeValueAsString(diff.getLeft()));
+                        JsonNode after =
+                                objectMapper.readTree(
+                                        
objectMapper.writeValueAsString(diff.getRight()));
+                        JsonNode jsonDiff = JsonDiff.asJson(before, after);
+                        jsonDiff.forEach(
+                                row -> {

Review Comment:
   IMHO,  Extracting multiple lines within a loop to a well named method help 
others to understand the intention behind that piece of code. it makes the code 
smaller, help with debugging and error handling when needed.
   
   i.e , obj.forEach(x -> createDiffObject(x))
   
   In that case there is another loop for every row, it would be nicer to have 
another small method which indicates the operation per row.(IMO)
   
   
   
   



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