diff --git a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateExtendsWildcard.java b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateExtendsWildcard.java
index b4f575977..eda1eafd2 100644
--- a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateExtendsWildcard.java
+++ b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateExtendsWildcard.java
@@ -8,6 +8,30 @@ import de.dhbwstuttgart.parser.scope.JavaClassName;
  * @since Studienarbeit Type Erasure
  * @author etiennezink
  */
-public final class IntermediateExtendsWildcard {
+public final class IntermediateExtendsWildcard extends IntermediateType {
     //ToDo
+
+    public IntermediateExtendsWildcard(JavaClassName className) {
+        super(className);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return 0;
+    }
+
+    @Override
+    public String getSignature() {
+        return null;
+    }
+
+    @Override
+    public String getDescriptor() {
+        return null;
+    }
 }
diff --git a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateGenericType.java b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateGenericType.java
index 053cd0db3..9a36e5664 100644
--- a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateGenericType.java
+++ b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateGenericType.java
@@ -38,24 +38,6 @@ public final class IntermediateGenericType extends IntermediateType {
         this.genericName = genericName;
     }
 
-    @Override
-    public String getSignature() {
-        String signature = this.signature;
-        if (!signature.equals("")) return this.signature;
-        signature += String.format("T%s;", genericName);
-        this.signature = signature;
-        return signature;
-    }
-
-    @Override
-    public String getDescriptor() {
-        String descriptor = this.descriptor;
-        if (!descriptor.equals("")) return this.descriptor;
-        descriptor = String.format("L%s;", getFullyQualifiedName()).replace('.','/');
-        this.descriptor = descriptor;
-        return descriptor;
-    }
-
     @Override
     public boolean equals(Object o) {
         if (!(o instanceof IntermediateGenericType)) return false;
@@ -78,6 +60,24 @@ public final class IntermediateGenericType extends IntermediateType {
         return result;
     }
 
+    @Override
+    public String getSignature() {
+        String signature = this.signature;
+        if (!signature.equals("")) return this.signature;
+        signature += String.format("T%s;", genericName);
+        this.signature = signature;
+        return signature;
+    }
+
+    @Override
+    public String getDescriptor() {
+        String descriptor = this.descriptor;
+        if (!descriptor.equals("")) return this.descriptor;
+        descriptor = String.format("L%s;", getFullyQualifiedName()).replace('.','/');
+        this.descriptor = descriptor;
+        return descriptor;
+    }
+
     public String getGenericName() {
         return genericName;
     }
diff --git a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java
index f8b908b99..c121becb9 100644
--- a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java
+++ b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java
@@ -39,6 +39,33 @@ public final class IntermediateRefType extends IntermediateType{
         this.typParameters = Collections.unmodifiableList(typParameters);
     }
 
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof IntermediateRefType)) return false;
+
+        IntermediateRefType intermediateRefType = (IntermediateRefType) o;
+        if(!getFullyQualifiedName().equals(intermediateRefType.getFullyQualifiedName())) return false;
+
+        for(int index = 0; index < typParameters.size(); index++){
+            if(!typParameters.get(index).equals(intermediateRefType.typParameters.get(index))) return false;
+        }
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        int prime = 31;
+        int result = hashCode;
+        if (result == 0){
+            result += getFullyQualifiedName().hashCode();
+            for (IntermediateType typeParameter:typParameters) {
+                result = prime * result + typeParameter.hashCode();
+            }
+            hashCode = result;
+        }
+        return result;
+    }
+
     @Override
     public String getSignature() {
         String signature = this.signature;
@@ -70,33 +97,6 @@ public final class IntermediateRefType extends IntermediateType{
         return descriptor;
     }
 
-    @Override
-    public boolean equals(Object o) {
-        if (!(o instanceof IntermediateRefType)) return false;
-
-        IntermediateRefType intermediateRefType = (IntermediateRefType) o;
-        if(!getFullyQualifiedName().equals(intermediateRefType.getFullyQualifiedName())) return false;
-
-        for(int index = 0; index < typParameters.size(); index++){
-            if(!typParameters.get(index).equals(intermediateRefType.typParameters.get(index))) return false;
-        }
-        return true;
-    }
-
-    @Override
-    public int hashCode() {
-        int prime = 31;
-        int result = hashCode;
-        if (result == 0){
-            result += getFullyQualifiedName().hashCode();
-            for (IntermediateType typeParameter:typParameters) {
-                result = prime * result + typeParameter.hashCode();
-            }
-            hashCode = result;
-        }
-        return result;
-    }
-
     public int getTypParameterSize(){ return typParameters.size(); }
 
     /**
diff --git a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateSuperWildcard.java b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateSuperWildcard.java
index 1fe48acee..42fdaf370 100644
--- a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateSuperWildcard.java
+++ b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateSuperWildcard.java
@@ -8,6 +8,30 @@ import de.dhbwstuttgart.parser.scope.JavaClassName;
  * @since Studienarbeit Type Erasure
  * @author etiennezink
  */
-public final class IntermediateSuperWildcard {
+public final class IntermediateSuperWildcard extends IntermediateType {
     //ToDo
+
+    public IntermediateSuperWildcard(JavaClassName className) {
+        super(className);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return 0;
+    }
+
+    @Override
+    public String getSignature() {
+        return null;
+    }
+
+    @Override
+    public String getDescriptor() {
+        return null;
+    }
 }