diff --git a/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java b/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
index d9e5cfdd..310d24a3 100644
--- a/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
+++ b/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
@@ -106,6 +106,25 @@ public class ASTToTargetAST {
             return generics.stream().anyMatch(generic -> generic.getLeft().equals(name));
         }
 
+        boolean containsRelation(Set<ResultPair<?, ?>> result, PairTPHsmallerTPH pair) {
+            // Check if both the right and the left are already part of a relation
+            var containsLeft = false;
+            for (var pair2 : result) {
+                if (pair2.getLeft().equals(pair.left)) {
+                    containsLeft = true;
+                    break;
+                }
+            }
+            var containsRight = false;
+            for (var pair2 : result) {
+                if (pair2.getRight().equals(pair.right)) {
+                    containsRight = true;
+                    break;
+                }
+            }
+            return containsLeft && containsRight;
+        }
+
         // Family of generated Generics
         Set<ResultPair<?, ?>> generics(ClassOrInterface owner, Method method) {
             if (computedGenericsOfMethods.containsKey(method))
@@ -119,6 +138,7 @@ public class ASTToTargetAST {
 
             HashSet<TypePlaceholder> typeVariables = new HashSet<>();
             HashSet<TypePlaceholder> typeVariablesOfFields = new HashSet<>();
+            HashSet<TypePlaceholder> allTypeVariables = new HashSet<>();
 
             for (var field : owner.getFieldDecl()) {
                 findTypeVariables(field.getType(), typeVariablesOfFields);
@@ -136,6 +156,17 @@ public class ASTToTargetAST {
                 }
             });
 
+            // Type variables with bounds that are also type variables of the method
+            for (var typeVariable : new HashSet<>(typeVariables)) {
+                for (var pair : simplifiedConstraints) {
+                    if (pair.left.equals(typeVariable) && typeVariables.contains(pair.right)) {
+                        result.add(new PairTPHsmallerTPH(pair.left, equality.getOrDefault(pair.right, pair.right)));
+                        typeVariables.add(pair.right);
+                    }
+                }
+            }
+
+            var visitedMethods = new HashSet<Method>();
             method.block.accept(new TracingStatementVisitor() {
                 @Override
                 public void visit(MethodCall methodCall) {
@@ -148,6 +179,9 @@ public class ASTToTargetAST {
                             ).findFirst();
                             if (optMethod.isEmpty()) return;
                             var method = optMethod.get();
+                            if (visitedMethods.contains(method)) return;
+                            visitedMethods.add(method);
+
                             var generics = generics(owner, method);
                             Set<ResultPair<?, ?>> all = new HashSet<>(generics);
 
@@ -189,7 +223,11 @@ public class ASTToTargetAST {
                                                 if (!(pair2.right.equals(tph2) && pair2.left.equals(type)))
                                                     continue;
 
-                                                newPairs.add(new PairTPHsmallerTPH(tph, tph2));
+                                                var newPair = new PairTPHsmallerTPH(tph, tph2);
+                                                newPairs.add(newPair);
+
+                                                if (!containsRelation(result, newPair))
+                                                    result.add(newPair);
                                                 continue outer;
                                             }
                                         }
@@ -202,10 +240,10 @@ public class ASTToTargetAST {
                 }
             });
 
-            // Type variables with bounds that are also type variables of the method or type variables of fields
+            // Type variables with bounds that are also type variables of fields
             for (var typeVariable : new HashSet<>(typeVariables)) {
                 for (var pair : simplifiedConstraints) {
-                    if (pair.left.equals(typeVariable) && (typeVariables.contains(pair.right) || typeVariablesOfFields.contains(pair.right))) {
+                    if (pair.left.equals(typeVariable) && typeVariablesOfFields.contains(pair.right)) {
                         result.add(new PairTPHsmallerTPH(pair.left, equality.getOrDefault(pair.right, pair.right)));
                         typeVariables.add(pair.right);
                     }
diff --git a/src/main/java/de/dhbwstuttgart/target/generate/StatementToTargetExpression.java b/src/main/java/de/dhbwstuttgart/target/generate/StatementToTargetExpression.java
index 279e3625..86c4e8de 100644
--- a/src/main/java/de/dhbwstuttgart/target/generate/StatementToTargetExpression.java
+++ b/src/main/java/de/dhbwstuttgart/target/generate/StatementToTargetExpression.java
@@ -11,6 +11,7 @@ import de.dhbwstuttgart.target.tree.MethodParameter;
 import de.dhbwstuttgart.target.tree.expression.*;
 import de.dhbwstuttgart.target.tree.type.TargetFunNType;
 import de.dhbwstuttgart.target.tree.type.TargetRefType;
+import de.dhbwstuttgart.target.tree.type.TargetSpecializedType;
 import de.dhbwstuttgart.target.tree.type.TargetType;
 
 import java.util.List;
@@ -135,12 +136,12 @@ public class StatementToTargetExpression implements StatementVisitor {
         var receiverType = converter.convert(methodCall.receiver.getType());
         var isFunNType = receiverType instanceof TargetFunNType;
         var returnType = converter.convert(methodCall.getType());
-        var receiverName = new JavaClassName(((TargetRefType) converter.convert(methodCall.receiver.getType())).name());
+        var receiverName = new JavaClassName(((TargetSpecializedType) converter.convert(methodCall.receiver.getType())).name());
 
         var argList = methodCall.arglist.getArguments().stream().map(expr -> converter.convert(expr.getType())).toList();
 
         java.lang.reflect.Method foundMethod = null;
-        if (converter.sourceFile.imports.contains(receiverName)) {
+        if (converter.sourceFile != null && converter.sourceFile.imports.contains(receiverName)) {
             try {
                 var clazz = converter.classLoader.loadClass(receiverName.toString());
 
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetFunNType.java b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetFunNType.java
index 531aae1c..9012a868 100644
--- a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetFunNType.java
+++ b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetFunNType.java
@@ -8,6 +8,11 @@ public record TargetFunNType(int N, List<TargetType> params) implements TargetSp
         return "Fun" + N + "$$";
     }
 
+    @Override
+    public String name() {
+        return getName();
+    }
+
     @Override
     public String toSignature() {
         return "L" + getName() + ";";
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetSpecializedType.java b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetSpecializedType.java
index c1f4dfc9..8bece183 100644
--- a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetSpecializedType.java
+++ b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetSpecializedType.java
@@ -18,4 +18,6 @@ public sealed interface TargetSpecializedType extends TargetType permits TargetF
         ret += ";";
         return ret;
     }
+
+    String name();
 }
diff --git a/src/test/java/targetast/TestComplete.java b/src/test/java/targetast/TestComplete.java
index f75520df..f1271108 100644
--- a/src/test/java/targetast/TestComplete.java
+++ b/src/test/java/targetast/TestComplete.java
@@ -359,6 +359,13 @@ public class TestComplete {
         var m = tph5.getDeclaredMethod("m", Object.class, Object.class);
     }
 
+    @Test
+    public void tph7Test() throws Exception {
+        var classFiles = generateClassFiles("Tph7.jav", new ByteArrayClassLoader());
+        var tph5 = classFiles.get("Tph7");
+        var instance = tph5.getDeclaredConstructor().newInstance();
+    }
+
     @Test
     public void typedIdTest() throws Exception {
         var classFiles = generateClassFiles("TypedID.jav", new ByteArrayClassLoader());