gnodet-bot commented on code in PR #27609:
URL: https://github.com/apache/camel/pull/27609#discussion_r4228070101


##########
core/camel-yaml-io/src/main/java/org/apache/camel/yaml/LwModelToYAMLDumper.java:
##########
@@ -267,6 +295,38 @@ public String dumpDataFormatsAsYaml(CamelContext context, 
Map<String, Object> da
         return buffer.toString();
     }
 
+    /**
+     * Collects the context scoped onExceptions that were added to the outputs 
of the route when it was prepared
+     */
+    private static void collectContextScopedOnExceptions(RouteDefinition 
route, List<OnExceptionDefinition> answer) {
+        for (var output : route.getOutputs()) {
+            if (output instanceof OnExceptionDefinition oe && 
!oe.isRouteScoped() && !containsInstance(answer, oe)) {
+                answer.add(oe);
+            }
+        }
+    }
+
+    private static boolean isInRouteConfiguration(CamelContext context, 
OnExceptionDefinition oe) {
+        Model model = context != null ? 
context.getCamelContextExtension().getContextPlugin(Model.class) : null;
+        if (model != null) {
+            for (RouteConfigurationDefinition config : 
model.getRouteConfigurationDefinitions()) {
+                if (containsInstance(config.getOnExceptions(), oe)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    private static boolean containsInstance(List<?> list, Object instance) {

Review Comment:
   💡 **Nit:** `containsInstance` will throw `NullPointerException` if `list` is 
null. `config.getOnExceptions()` is normally non-null, but 
`setOnExceptions(null)` makes it possible. Consistent with the defensive style 
of `isInRouteConfiguration`:
   
   ```suggestion
       private static boolean containsInstance(List<?> list, Object instance) {
           if (list == null) {
               return false;
           }
           for (Object o : list) {
               if (o == instance) {
                   return true;
               }
           }
           return false;
       }
   ```



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