diff --git a/app/src/main/java/info/nightscout/androidaps/interfaces/ConstraintsInterface.java b/app/src/main/java/info/nightscout/androidaps/interfaces/ConstraintsInterface.java
index e4255a2157..4918cbfacf 100644
--- a/app/src/main/java/info/nightscout/androidaps/interfaces/ConstraintsInterface.java
+++ b/app/src/main/java/info/nightscout/androidaps/interfaces/ConstraintsInterface.java
@@ -7,23 +7,41 @@ import info.nightscout.androidaps.data.Profile;
  */
 public interface ConstraintsInterface {
 
-    Constraint<Boolean> isLoopInvokationAllowed(Constraint<Boolean> value);
+    default Constraint<Boolean> isLoopInvokationAllowed(Constraint<Boolean> value) {
+        return value;
+    }
 
-    Constraint<Boolean> isClosedLoopAllowed(Constraint<Boolean> value);
+    default Constraint<Boolean> isClosedLoopAllowed(Constraint<Boolean> value) {
+        return value;
+    }
 
-    Constraint<Boolean> isAutosensModeEnabled(Constraint<Boolean> value);
+    default Constraint<Boolean> isAutosensModeEnabled(Constraint<Boolean> value) {
+        return value;
+    }
 
-    Constraint<Boolean> isAMAModeEnabled(Constraint<Boolean> value);
+    default Constraint<Boolean> isAMAModeEnabled(Constraint<Boolean> value) {
+        return value;
+    }
 
-    Constraint<Boolean> isSMBModeEnabled(Constraint<Boolean> value);
+    default Constraint<Boolean> isSMBModeEnabled(Constraint<Boolean> value) {
+        return value;
+    }
 
-    Constraint<Double> applyBasalConstraints(Constraint<Double> absoluteRate, Profile profile);
+    default Constraint<Double> applyBasalConstraints(Constraint<Double> absoluteRate, Profile profile) {
+        return absoluteRate;
+    }
 
-    Constraint<Integer> applyBasalPercentConstraints(Constraint<Integer> percentRate, Profile profile);
+    default Constraint<Integer> applyBasalPercentConstraints(Constraint<Integer> percentRate, Profile profile) {
+        return percentRate;
+    }
 
-    Constraint<Double>  applyBolusConstraints(Constraint<Double>  insulin);
+    default Constraint<Double>  applyBolusConstraints(Constraint<Double>  insulin) {
+        return insulin;
+    }
 
-    Constraint<Integer> applyCarbsConstraints(Constraint<Integer> carbs);
+    default Constraint<Integer> applyCarbsConstraints(Constraint<Integer> carbs) {
+        return carbs;
+    }
 
     default Constraint<Double> applyMaxIOBConstraints(Constraint<Double> maxIob) {
         return maxIob;
diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/PumpCombo/ComboPlugin.java b/app/src/main/java/info/nightscout/androidaps/plugins/PumpCombo/ComboPlugin.java
index 45e9967341..f9858d4cce 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/PumpCombo/ComboPlugin.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/PumpCombo/ComboPlugin.java
@@ -1432,46 +1432,6 @@ public class ComboPlugin implements PluginBase, PumpInterface, ConstraintsInterf
         return value;
     }
 
-    @Override
-    public Constraint<Boolean> isClosedLoopAllowed(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAutosensModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAMAModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isSMBModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Double> applyBasalConstraints(Constraint<Double> absoluteRate, Profile profile) {
-        return absoluteRate;
-    }
-
-    @Override
-    public Constraint<Integer> applyBasalPercentConstraints(Constraint<Integer> percentRate, Profile profile) {
-        return percentRate;
-    }
-
-    @Override
-    public Constraint<Double> applyBolusConstraints(Constraint<Double> insulin) {
-        return insulin;
-    }
-
-    @Override
-    public Constraint<Integer> applyCarbsConstraints(Constraint<Integer> carbs) {
-        return carbs;
-    }
-
     @Override
     public Constraint<Double> applyMaxIOBConstraints(Constraint<Double> maxIob) {
         if (lowSuspendOnlyLoopEnforcedUntil > System.currentTimeMillis())
diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaR/AbstractDanaRPlugin.java b/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaR/AbstractDanaRPlugin.java
index 4dec62c8a8..008cecc590 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaR/AbstractDanaRPlugin.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaR/AbstractDanaRPlugin.java
@@ -433,31 +433,6 @@ public abstract class AbstractDanaRPlugin implements PluginBase, PumpInterface,
      * Constraint interface
      */
 
-    @Override
-    public Constraint<Boolean> isLoopInvokationAllowed(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isClosedLoopAllowed(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAutosensModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAMAModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isSMBModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
     @Override
     public Constraint<Double> applyBasalConstraints(Constraint<Double> absoluteRate, Profile profile) {
         if (pump != null)
@@ -480,11 +455,6 @@ public abstract class AbstractDanaRPlugin implements PluginBase, PumpInterface,
         return insulin;
     }
 
-    @Override
-    public Constraint<Integer> applyCarbsConstraints(Constraint<Integer> carbs) {
-        return carbs;
-    }
-
     @Nullable
     @Override
     public ProfileStore getProfile() {
diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaRS/DanaRSPlugin.java b/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaRS/DanaRSPlugin.java
index 32d2ea8f9c..4473f110d4 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaRS/DanaRSPlugin.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/PumpDanaRS/DanaRSPlugin.java
@@ -272,31 +272,6 @@ public class DanaRSPlugin implements PluginBase, PumpInterface, DanaRInterface,
 
     // Constraints interface
 
-    @Override
-    public Constraint<Boolean> isLoopInvokationAllowed(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isClosedLoopAllowed(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAutosensModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAMAModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isSMBModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
     @Override
     public Constraint<Double> applyBasalConstraints(Constraint<Double> absoluteRate, Profile profile) {
         if (pump != null)
@@ -320,11 +295,6 @@ public class DanaRSPlugin implements PluginBase, PumpInterface, DanaRInterface,
         return insulin;
     }
 
-    @Override
-    public Constraint<Integer> applyCarbsConstraints(Constraint<Integer> carbs) {
-        return carbs;
-    }
-
     // Profile interface
 
     @Nullable
diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/PumpInsight/InsightPumpPlugin.java b/app/src/main/java/info/nightscout/androidaps/plugins/PumpInsight/InsightPumpPlugin.java
index 2416eb0d4e..9b84f56da6 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/PumpInsight/InsightPumpPlugin.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/PumpInsight/InsightPumpPlugin.java
@@ -1088,31 +1088,6 @@ public class InsightPumpPlugin implements PluginBase, PumpInterface, Constraints
 
     // Constraints
 
-    @Override
-    public Constraint<Boolean> isLoopInvokationAllowed(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isClosedLoopAllowed(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAutosensModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isAMAModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
-    @Override
-    public Constraint<Boolean> isSMBModeEnabled(Constraint<Boolean> value) {
-        return value;
-    }
-
     @Override
     public Constraint<Double> applyBasalConstraints(Constraint<Double> absoluteRate, Profile profile) {
         if (statusResult != null) {
@@ -1136,10 +1111,4 @@ public class InsightPumpPlugin implements PluginBase, PumpInterface, Constraints
         return insulin;
     }
 
-    @Override
-    public Constraint<Integer> applyCarbsConstraints(Constraint<Integer> carbs) {
-        return carbs;
-    }
-
-
 }