diff --git a/src/de/dhbwstuttgart/strucTypes5/NeueKlassen/ConstructInterfaces.java b/src/de/dhbwstuttgart/strucTypes5/NeueKlassen/ConstructInterfaces.java
index 23020760..c25a159a 100644
--- a/src/de/dhbwstuttgart/strucTypes5/NeueKlassen/ConstructInterfaces.java
+++ b/src/de/dhbwstuttgart/strucTypes5/NeueKlassen/ConstructInterfaces.java
@@ -85,7 +85,6 @@ public class ConstructInterfaces {
 
             GenericTypeName typeName = new GenericTypeName( context,name);
             GenericRefType typeVar = new GenericRefType(typeName, new NullToken());
-
             formalParameters.add(new FormalParameter(name,typeVar , new NullToken() ));
         }
 
diff --git a/src/de/dhbwstuttgart/strucTypes5/interfaceTemplates/Interface.java b/src/de/dhbwstuttgart/strucTypes5/interfaceTemplates/Interface.java
index 03fcd867..dcae0488 100644
--- a/src/de/dhbwstuttgart/strucTypes5/interfaceTemplates/Interface.java
+++ b/src/de/dhbwstuttgart/strucTypes5/interfaceTemplates/Interface.java
@@ -53,7 +53,10 @@ public class Interface {
 
     @Override
     public String toString() {
-        return String.format("interface %s < %s >  { \n %s \n %s } \n \n " , strucType , generics, fields.toString() , methods.toString());
+        String res = String.format("interface %s < %s >  { \n %s \n %s } \n \n " , strucType , generics, fields.toString() , methods.toString());
+        res = res.replace("[" , "");
+        res = res.replace("]"  , "");
+        return res;
     }
 
 
diff --git a/src/de/dhbwstuttgart/strucTypes6/Main.java b/src/de/dhbwstuttgart/strucTypes6/Main.java
new file mode 100644
index 00000000..42886cb3
--- /dev/null
+++ b/src/de/dhbwstuttgart/strucTypes6/Main.java
@@ -0,0 +1,7 @@
+package de.dhbwstuttgart.strucTypes6;
+
+/**
+ * Created by sebastian on 11.05.17.
+ */
+public class Main {
+}
diff --git a/test/javFiles/testX.jav b/test/javFiles/testX.jav
new file mode 100644
index 00000000..1c8b7b6e
--- /dev/null
+++ b/test/javFiles/testX.jav
@@ -0,0 +1,26 @@
+class Main {
+main () { return new MyInteger();  }
+}
+
+
+class A {
+mt(x,y,z) { return x.sub(y); }
+}
+
+interface TVar_5 < TVar_16, TVar_15 >  {
+   TVar_16 add ( TVar_15  x);
+   TVar_16 sub ( TVar_15  x);
+}
+
+
+class MyInteger implements TVar_5<MyInteger,MyInteger> {
+
+ MyInteger add( MyInteger x ) {
+ return x;
+ }
+
+  MyInteger sub( MyInteger x ) {
+  return x;
+  }
+
+}
\ No newline at end of file
diff --git a/test/strucTypes5/ConvertTest.jav b/test/strucTypes5/ConvertTest.jav
index 119a4e56..9b261042 100644
--- a/test/strucTypes5/ConvertTest.jav
+++ b/test/strucTypes5/ConvertTest.jav
@@ -10,12 +10,17 @@ class A {
 mt(x,y,z) { return x.sub(y).add(z); }
 }
 
-interface if1<A,B> {
+interface TVar_5 < TVar_16, TVar_15 >  {
 
-}
+   TVar_16 add ( TVar_15  x);
 
 
-class MyInteger {
+   }
+
+
+class MyInteger implements TVar_5<MyInteger,MyInteger> {
+
+ MyInteger add( MyInteger x );
 
 }
 
diff --git a/test/strucTypes5/ConvertTest.java b/test/strucTypes5/ConvertTest.java
index 1b7a846f..c457d7f0 100644
--- a/test/strucTypes5/ConvertTest.java
+++ b/test/strucTypes5/ConvertTest.java
@@ -57,10 +57,9 @@ public class ConvertTest {
 				ClassOrInterface aClass = sf.getClasses().get(1);
 
 
-				Set<ClassOrInterface> typeinfo = new HashSet<>();
-				ConstraintSet<Constraint> constraints  = sf.getClasses().get(0).getConstraints(new TypeInferenceInformation(typeinfo));
-				ConstraintSet cs = constraints;
-
+				//Set<ClassOrInterface> typeinfo = new HashSet<>();
+				//ConstraintSet<Constraint> constraints  = sf.getClasses().get(0).getConstraints(new TypeInferenceInformation(typeinfo));
+				//ConstraintSet cs = constraints;
 
 
 				AssumptionMap assumptionMap = new AssumptionMap();
diff --git a/test/strucTypes5/ConvertTest2.jav b/test/strucTypes5/ConvertTest2.jav
new file mode 100644
index 00000000..67e001a1
--- /dev/null
+++ b/test/strucTypes5/ConvertTest2.jav
@@ -0,0 +1,11 @@
+
+
+
+
+
+interface if1<A,B> {
+
+}
+
+
+
diff --git a/test/typeinference/JavaTXCompilerTest.java b/test/typeinference/JavaTXCompilerTest.java
index 31f0a622..70c0413d 100644
--- a/test/typeinference/JavaTXCompilerTest.java
+++ b/test/typeinference/JavaTXCompilerTest.java
@@ -17,10 +17,12 @@ public class JavaTXCompilerTest {
     @Test
     public void test() throws IOException, ClassNotFoundException {
         JavaTXCompiler compiler = new JavaTXCompiler();
-        compiler.parse(new File(rootDirectory+"Methods.jav"));
+        compiler.parse(new File(rootDirectory+"testX.jav"));
         //compiler.parse(new File(rootDirectory+"Generics.jav"));
         //compiler.parse(new File(rootDirectory+"MethodsEasy.jav"));
         //compiler.parse(new File(rootDirectory+"Lambda.jav"));
         compiler.typeInference();
+
+
     }
 }
\ No newline at end of file