diff --git a/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java b/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java
index a764db6e..d7528fad 100644
--- a/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java
+++ b/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java
@@ -225,12 +225,15 @@ public class UnifyTypeFactory {
                 return new PairTPHequalRefTypeOrWildcardType((TypePlaceholder)tl, (RefType) tr);
             }else if(tr instanceof WildcardType){
                 return new PairTPHequalRefTypeOrWildcardType((TypePlaceholder)tl, (WildcardType) tr);
+            }else if(tr instanceof GenericRefType){
+                return new PairTPHequalRefTypeOrWildcardType((TypePlaceholder)tl, (GenericRefType) tr);
             }else throw new NotImplementedException();
         }else throw new NotImplementedException();
     }
 
     public static RefTypeOrTPHOrWildcardOrGeneric convert(ReferenceType t, Map<String,TypePlaceholder> tphs) {
         if(JavaClassName.Void.equals(t.getName()))return new Void(new NullToken());
+        if (t.isGenTypeVar()) return new GenericRefType(t.getName(),new NullToken());
         RefType ret = new RefType(new JavaClassName(t.getName()),convert(t.getTypeParams(), tphs),new NullToken());
         return ret;
     }
diff --git a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java
index 5b17538e..4bd51b27 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java
@@ -11,28 +11,45 @@ import de.dhbwstuttgart.typeinference.unify.interfaces.UnifyTypeVisitor;
  * @author Florian Steurer
  *
  */
-public final class ReferenceType extends UnifyType {
+public class ReferenceType extends UnifyType {
 	
 	/**
 	 * The buffered hashCode
 	 */
 	private final int hashCode;
 	
+	/**
+	 * gibt an, ob der ReferenceType eine generische Typvariable ist
+	 */
+	private final boolean genericTypeVar;
+	
 
 	public <T> UnifyType accept(UnifyTypeVisitor<T> visitor, T ht) {
 		return visitor.visit(this, ht);
 	}
 	
+	public ReferenceType(String name) {
+		super(name, new TypeParams());
+		hashCode = 31 + 17 * typeName.hashCode() + 17 * typeParams.hashCode();
+		genericTypeVar = true;
+	}
+	
 	public ReferenceType(String name, UnifyType... params) {
 		super(name, new TypeParams(params));
 		hashCode = 31 + 17 * typeName.hashCode() + 17 * typeParams.hashCode();
+		genericTypeVar = false;
 	}
 	
 	public ReferenceType(String name, TypeParams params) {
 		super(name, params);
 		hashCode = 31 + 17 * typeName.hashCode() + 17 * typeParams.hashCode();
+		genericTypeVar = false;
 	}
 
+	public boolean isGenTypeVar () { 
+		return genericTypeVar;
+	}
+	
 	@Override
 	Set<UnifyType> smArg(IFiniteClosure fc, Set<UnifyType> fBounded) {
 		return fc.smArg(this, fBounded);
diff --git a/src/test/java/bytecode/applyLambdaTest.java b/src/test/java/bytecode/applyLambdaTest.java
index 3c7ea452..6fb4722e 100644
--- a/src/test/java/bytecode/applyLambdaTest.java
+++ b/src/test/java/bytecode/applyLambdaTest.java
@@ -1,3 +1,4 @@
+
 package bytecode;
 
 import static org.junit.Assert.assertEquals;
diff --git a/src/test/resources/bytecode/javFiles/Id.jav b/src/test/resources/bytecode/javFiles/Id.jav
index 6cb5d4b0..03614a1b 100644
--- a/src/test/resources/bytecode/javFiles/Id.jav
+++ b/src/test/resources/bytecode/javFiles/Id.jav
@@ -1,6 +1,6 @@
 public class Id {
 	
-	id(b){
+	<A> id(A b){
 		return b;
 	}
 }
\ No newline at end of file