diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/output/FieldIterator.java b/java_tools/configuration_definition/src/main/java/com/rusefi/output/FieldIterator.java
index 2899c0c6e3..be0b7b9bf4 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/output/FieldIterator.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/output/FieldIterator.java
@@ -7,6 +7,7 @@ import java.util.List;
 
 /**
  * custom iterator with references to previous and next elements
+ * @see PerFieldWithStructuresIterator is there a duplication?
  */
 public class FieldIterator {
     private final List<ConfigField> fields;
diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/output/PerFieldWithStructuresIterator.java b/java_tools/configuration_definition/src/main/java/com/rusefi/output/PerFieldWithStructuresIterator.java
index a1085a99a9..ecf2954d00 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/output/PerFieldWithStructuresIterator.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/output/PerFieldWithStructuresIterator.java
@@ -5,6 +5,10 @@ import com.rusefi.ReaderState;
 
 import java.util.List;
 
+/**
+ * @see FieldsStrategy
+ * @see FieldIterator is there a duplication?
+ */
 class PerFieldWithStructuresIterator extends FieldIterator {
     private final ReaderState state;
     private final String prefix;