diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigField.java b/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigField.java
index 7726b19cf8..39467093e4 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigField.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigField.java
@@ -1,4 +1,56 @@
 package com.rusefi;
 
+import com.rusefi.core.Pair;
+import com.rusefi.output.ConfigStructure;
+
 public interface ConfigField {
+    ConfigStructure getStructureType();
+
+    boolean isArray();
+
+    String getTrueName();
+
+    String getFalseName();
+
+    boolean isBit();
+
+    boolean isDirective();
+
+    int getSize(ConfigField next);
+
+    int[] getArraySizes();
+
+    String getComment();
+
+    String getName();
+
+    String getType();
+
+    int getElementSize();
+
+    boolean isIterate();
+
+    boolean isHasAutoscale();
+
+    ReaderState getState();
+
+    String getTsInfo();
+
+    boolean isFsioVisible();
+
+    String autoscaleSpec();
+
+    double autoscaleSpecNumber();
+
+    Pair<Integer, Integer> autoscaleSpecPair();
+
+    String[] getTokens();
+
+    String getUnits();
+
+    double getMin();
+
+    double getMax();
+
+    int getDigits();
 }
diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigFieldImpl.java b/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigFieldImpl.java
index f6a35de7c9..d503b7453a 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigFieldImpl.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/ConfigFieldImpl.java
@@ -115,26 +115,32 @@ public class ConfigFieldImpl implements ConfigField {
         return Integer.parseInt(s);
     }
 
+    @Override
     public ConfigStructure getStructureType() {
         return getState().getStructures().get(getType());
     }
 
+    @Override
     public boolean isArray() {
         return arraySizeVariableName != null || arraySizes.length != 0;
     }
 
+    @Override
     public String getTrueName() {
         return trueName;
     }
 
+    @Override
     public String getFalseName() {
         return falseName;
     }
 
+    @Override
     public boolean isBit() {
         return BOOLEAN_T.equalsIgnoreCase(type);
     }
 
+    @Override
     public boolean isDirective() {
         return DIRECTIVE_T.equalsIgnoreCase(type);
     }
@@ -220,7 +226,8 @@ public class ConfigFieldImpl implements ConfigField {
         return matcher.matches();
     }
 
-    public int getSize(ConfigFieldImpl next) {
+    @Override
+    public int getSize(ConfigField next) {
         if (isBit() && next.isBit()) {
             // we have a protection from 33+ bits in a row in BitState, see BitState.TooManyBitsInARow
             return 0;
@@ -243,10 +250,12 @@ public class ConfigFieldImpl implements ConfigField {
                 '}';
     }
 
+    @Override
     public int[] getArraySizes() {
         return arraySizes;
     }
 
+    @Override
     public String getComment() {
         if (comment == null)
             return null;
@@ -258,6 +267,7 @@ public class ConfigFieldImpl implements ConfigField {
      *
      * @see JavaFieldsConsumer#writeJavaFields prefix parameter for structure name
      */
+    @Override
     public String getName() {
         return name;
     }
@@ -265,10 +275,12 @@ public class ConfigFieldImpl implements ConfigField {
     /**
      * @see com.rusefi.newparse.parsing.Type
      */
+    @Override
     public String getType() {
         return type;
     }
 
+    @Override
     public int getElementSize() {
         return isVoid() ? 0 : TypesHelper.getElementSize(state, type);
     }
@@ -276,26 +288,32 @@ public class ConfigFieldImpl implements ConfigField {
     /**
      * this property of array expands field into a bunch of variables like field1 field2 field3 etc
      */
+    @Override
     public boolean isIterate() {
         return isIterate;
     }
 
+    @Override
     public boolean isHasAutoscale() {
         return hasAutoscale;
     }
 
-    public ReaderStateImpl getState() {
+    @Override
+    public ReaderState getState() {
         return state;
     }
 
+    @Override
     public String getTsInfo() {
         return tsInfo;
     }
 
+    @Override
     public boolean isFsioVisible() {
         return fsioVisible;
     }
 
+    @Override
     public String autoscaleSpec() {
         Pair<Integer, Integer> pair = autoscaleSpecPair();
         if (pair == null)
@@ -303,6 +321,7 @@ public class ConfigFieldImpl implements ConfigField {
         return pair.first + ", " + pair.second;
     }
 
+    @Override
     public double autoscaleSpecNumber() {
         Pair<Integer, Integer> pair = autoscaleSpecPair();
         if (pair == null)
@@ -310,6 +329,7 @@ public class ConfigFieldImpl implements ConfigField {
         return 1.0 * pair.second / pair.first;
     }
 
+    @Override
     public Pair<Integer, Integer> autoscaleSpecPair() {
         if (!hasAutoscale) {
             return null;
@@ -351,12 +371,14 @@ public class ConfigFieldImpl implements ConfigField {
         return new Pair<>(mul, div);
     }
 
-    private String[] getTokens() {
+    @Override
+    public String[] getTokens() {
         if (tsInfo == null)
             return new String[0];
         return tsInfo.split(",");
     }
 
+    @Override
     public String getUnits() {
         String[] tokens = getTokens();
         if (tokens.length == 0)
@@ -364,6 +386,7 @@ public class ConfigFieldImpl implements ConfigField {
         return unquote(tokens[0].trim());
     }
 
+    @Override
     public double getMin() {
         String[] tokens = getTokens();
         if (tokens.length < 4)
@@ -371,6 +394,7 @@ public class ConfigFieldImpl implements ConfigField {
         return Double.parseDouble(tokens[3]);
     }
 
+    @Override
     public double getMax() {
         String[] tokens = getTokens();
         if (tokens.length < 5)
@@ -378,6 +402,7 @@ public class ConfigFieldImpl implements ConfigField {
         return Double.parseDouble(tokens[4]);
     }
 
+    @Override
     public int getDigits() {
         String[] tokens = getTokens();
         if (tokens.length < 6)
diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java b/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java
index a72118c403..67d664093e 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderState.java
@@ -1,5 +1,6 @@
 package com.rusefi;
 
+import com.rusefi.output.ConfigStructure;
 import com.rusefi.output.ConfigurationConsumer;
 
 import java.io.IOException;
@@ -23,6 +24,10 @@ public interface ReaderState {
 
     VariableRegistry getVariableRegistry();
 
+    Map<String, Integer> getTsCustomSize();
+
+    Map<String, ? extends ConfigStructure> getStructures();
+
     Map<String, String> getTsCustomLine();
 
     void setHeaderMessage(String headerMessage);
diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderStateImpl.java b/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderStateImpl.java
index 8cb617576d..ca842a8e36 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderStateImpl.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/ReaderStateImpl.java
@@ -386,10 +386,12 @@ public class ReaderStateImpl implements ReaderState {
         return variableRegistry;
     }
 
+    @Override
     public Map<String, Integer> getTsCustomSize() {
         return tsCustomSize;
     }
 
+    @Override
     public Map<String, ? extends ConfigStructure> getStructures() {
         return structures;
     }
diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/output/ConfigStructureImpl.java b/java_tools/configuration_definition/src/main/java/com/rusefi/output/ConfigStructureImpl.java
index dc7929d56f..fdaf1b9c4b 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/output/ConfigStructureImpl.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/output/ConfigStructureImpl.java
@@ -1,9 +1,6 @@
 package com.rusefi.output;
 
-import com.rusefi.BitState;
-import com.rusefi.ConfigFieldImpl;
-import com.rusefi.ReaderStateImpl;
-import com.rusefi.TypesHelper;
+import com.rusefi.*;
 
 import java.util.ArrayList;
 import java.util.HashSet;
@@ -33,7 +30,7 @@ public class ConfigStructureImpl implements ConfigStructure {
 
     private final BitState readingBitState = new BitState();
 
-    private ConfigFieldImpl cPrevField = ConfigFieldImpl.VOID;
+    private ConfigField cPrevField = ConfigFieldImpl.VOID;
     private final Set<String> names = new HashSet<>();
 
     public ConfigStructureImpl(String name, String comment, boolean withPrefix) {
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 c8aa2dab6e..31f807cc08 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
@@ -1,6 +1,7 @@
 package com.rusefi.output;
 
 import com.rusefi.BitState;
+import com.rusefi.ConfigField;
 import com.rusefi.ConfigFieldImpl;
 
 import java.util.List;
@@ -12,7 +13,7 @@ import java.util.List;
 public class FieldIterator {
     private final List<ConfigFieldImpl> fields;
     BitState bitState = new BitState();
-    private ConfigFieldImpl prev = ConfigFieldImpl.VOID;
+    private ConfigField prev = ConfigFieldImpl.VOID;
     ConfigFieldImpl next;
     ConfigFieldImpl cf;
 
@@ -23,7 +24,7 @@ public class FieldIterator {
     /**
      * return previous field which is not a directive
      */
-    public ConfigFieldImpl getPrev() {
+    public ConfigField getPrev() {
         return prev;
     }
 
diff --git a/java_tools/configuration_definition/src/main/java/com/rusefi/output/JavaFieldsConsumer.java b/java_tools/configuration_definition/src/main/java/com/rusefi/output/JavaFieldsConsumer.java
index 6e5deb41b2..1342e4ac23 100644
--- a/java_tools/configuration_definition/src/main/java/com/rusefi/output/JavaFieldsConsumer.java
+++ b/java_tools/configuration_definition/src/main/java/com/rusefi/output/JavaFieldsConsumer.java
@@ -45,7 +45,7 @@ public abstract class JavaFieldsConsumer implements ConfigurationConsumer {
         }
     }
 
-    private boolean isStringField(ConfigFieldImpl configField) {
+    private boolean isStringField(ConfigField configField) {
         String custom = state.getTsCustomLine().get(configField.getType());
         return custom != null && custom.toLowerCase().startsWith(IniFileModel.FIELD_TYPE_STRING);
     }
@@ -54,9 +54,9 @@ public abstract class JavaFieldsConsumer implements ConfigurationConsumer {
     public void handleEndStruct(ReaderState readerState, ConfigStructure structure) throws IOException {
         FieldsStrategy fieldsStrategy = new FieldsStrategy() {
             protected int writeOneField(FieldIterator iterator, String prefix, int tsPosition) {
-                ConfigFieldImpl prev = iterator.getPrev();
-                ConfigFieldImpl configField = iterator.cf;
-                ConfigFieldImpl next = iterator.next;
+                ConfigField prev = iterator.getPrev();
+                ConfigField configField = iterator.cf;
+                ConfigField next = iterator.next;
                 int bitIndex = iterator.bitState.get();
 
                 if (configField.isDirective())