diff --git a/src/de/dhbwstuttgart/bytecode/ClassGenerator.java b/src/de/dhbwstuttgart/bytecode/ClassGenerator.java
index 514b1821..be42c2ba 100644
--- a/src/de/dhbwstuttgart/bytecode/ClassGenerator.java
+++ b/src/de/dhbwstuttgart/bytecode/ClassGenerator.java
@@ -32,10 +32,9 @@ public class ClassGenerator extends ClassGen{
 	
 	private Menge<TypePlaceholder> usedTPHs = new Menge<>();
 	
-	private Map<String, ClassGenerator> extraClasses = new HashMap();
+	private Map<String, ClassGenerator> extraClasses = new HashMap<>();
 
-	public ClassGenerator(String name, Type superClass, String string,
-			short accPublic, String[] strings, TypeinferenceResultSet resultSet) {
+	public ClassGenerator(String name, Type superClass, String string, short accPublic, String[] strings, TypeinferenceResultSet resultSet) {
 		super(name,superClass.get_Name(),string,accPublic,strings, new DHBWConstantPoolGen());
 		this.tiResult = resultSet;
 		this.superClass = superClass;
diff --git a/src/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java b/src/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java
index 29940082..fca21942 100644
--- a/src/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java
+++ b/src/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java
@@ -7,6 +7,9 @@ import de.dhbwstuttgart.syntaxtree.Method;
 import de.dhbwstuttgart.syntaxtree.misc.DeclId;
 import de.dhbwstuttgart.syntaxtree.statement.Block;
 import de.dhbwstuttgart.syntaxtree.statement.SuperCall;
+import de.dhbwstuttgart.typeinference.Menge;
+import de.dhbwstuttgart.typeinference.ResultSet;
+import de.dhbwstuttgart.typeinference.TypeinferenceResultSet;
 
 public class ASTFactory {	
 	public static Method createMethod(String name, Block block, Class parent) {
@@ -36,7 +39,16 @@ public class ASTFactory {
 	}
 
 	public static ClassGenerator createClass(String className, Class superClass) {
-		// TODO Auto-generated method stub
-		return null;
+		// TODO bytecode createClass
+		Class generatedClass = new Class(className, 0);
+		Block konstruktorBlock = new Block();
+		konstruktorBlock.setType(new de.dhbwstuttgart.syntaxtree.type.Void(konstruktorBlock, 0));
+		konstruktorBlock.statements.add(new SuperCall(konstruktorBlock));
+		Constructor standardKonstruktor = new Constructor(Method.createEmptyMethod(konstruktorBlock, className, superClass), superClass);
+		standardKonstruktor.parserPostProcessing(generatedClass);
+		
+		generatedClass.addField(standardKonstruktor);
+		
+		return generatedClass.genByteCode(new TypeinferenceResultSet(generatedClass, new Menge<>(), new ResultSet())).getByteCode();
 	}
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/type/RefType.java b/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
index e044c065..f66c8b0c 100755
--- a/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
@@ -837,7 +837,10 @@ public class RefType extends ObjectType implements IMatchable
 		*/
 		
 		//TODO: bytecode woher bekommt ich die parent klasse
-		cg.addExtraClass(ASTFactory.createClass(getCombinedType(cg), null));
+		String combinedType = getCombinedType(cg);
+		if(!combinedType.equals(get_Name())){
+			cg.addExtraClass(ASTFactory.createClass(getCombinedType(cg), getParentClass()));
+		}
 		
 		return "L"+getCombinedType(cg)+";";
 	}