diff --git a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
index 71b4886b4..50170cdf5 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/insertGenerics/FamilyOfGeneratedGenerics.java
@@ -197,21 +197,22 @@ public class FamilyOfGeneratedGenerics {
      * {R' <. S | (R <. R') \in cs_m, (S <. S') \in cs_cl and (R',S) is in the transitive closure of cs}
      */
 
-    public static List<MethodConstraint> secondTransitiveSubtypeForMethodTypes(List<TPHConstraint> allConstraints, List<MethodConstraint> cs_m, HashMap<String, PairTphMethod<PositionFinder.Position, String>> posOfTphs) {
+    public static List<MethodConstraint> secondTransitiveSubtypeForMethodTypes(List<TPHConstraint> allConstraints, List<ClassConstraint> cs_cl, List<MethodConstraint> cs_m, HashMap<String, PairTphMethod<PositionFinder.Position, String>> posOfTphs) {
         //TODO:
         List<MethodConstraint> tempCC= new ArrayList<>();
         List<TPHConstraint> tcOfCs =  buildTransitiveClosure(allConstraints);
-        for(MethodConstraint mC1 : cs_m) {
-            for(MethodConstraint mC2 : cs_m) {
-                String rightSide = mC1.getRight();
-                String leftSide = mC2.getLeft();
+        for(ClassConstraint cC : cs_cl) {
+            for(MethodConstraint mC : cs_m) {
+                String rightSide = mC.getRight();
+                String leftSide = cC.getLeft();
                 for(TPHConstraint tphC : tcOfCs) {
-
+                    if(tphC.getLeft().equals(leftSide)&&tphC.getRight().equals(rightSide)) {
+                        tempCC.add((MethodConstraint) tphC);
+                    }
                 }
             }
         }
-        return null;
-        return null;
+        return tempCC;
     }
 
 /**