diff --git a/src/de/dhbwstuttgart/bytecode/ClassGenerator.java b/src/de/dhbwstuttgart/bytecode/ClassGenerator.java
index a13ed914..ef556c50 100644
--- a/src/de/dhbwstuttgart/bytecode/ClassGenerator.java
+++ b/src/de/dhbwstuttgart/bytecode/ClassGenerator.java
@@ -1,8 +1,12 @@
 package de.dhbwstuttgart.bytecode;
 
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
 import java.util.Map;
+import java.util.Vector;
 
 import org.apache.commons.bcel6.classfile.BootstrapMethod;
 import org.apache.commons.bcel6.classfile.BootstrapMethods;
@@ -10,6 +14,7 @@ import org.apache.commons.bcel6.classfile.ConstantPool;
 import org.apache.commons.bcel6.classfile.InnerClass;
 import org.apache.commons.bcel6.classfile.InnerClasses;
 import org.apache.commons.bcel6.classfile.JavaClass;
+import org.apache.commons.bcel6.classfile.Method;
 import org.apache.commons.bcel6.classfile.Signature;
 import org.apache.commons.bcel6.generic.ClassGen;
 import org.apache.commons.bcel6.generic.ConstantPoolGen;
@@ -34,6 +39,7 @@ public class ClassGenerator extends ClassGen{
 	private Menge<TypePlaceholder> usedTPHs = new Menge<>();
 	
 	private Map<String, ClassGenerator> extraClasses = new HashMap<>();
+	private List<String> methodsNamesAndTypes = new LinkedList<>();
 
 	public ClassGenerator(String name, Type superClass, String string, short accessflags, String[] strings, TypeinferenceResults typeinferenceResults) {
 		super(name,superClass.get_Name(),string,accessflags,strings, new DHBWConstantPoolGen());
@@ -162,6 +168,20 @@ public class ClassGenerator extends ClassGen{
 	public TypeinferenceResults getTypeinferenceResults() {
 		return tiResult;
 	}
+
+	@Override
+	public void addMethod(Method m) {
+		String methodNameAndTypes = m.getName()+Arrays.toString(m.getArgumentTypes());
+		
+		if(methodsNamesAndTypes.contains(methodNameAndTypes)){
+			return;
+		}
+
+		methodsNamesAndTypes.add(methodNameAndTypes);
+		super.addMethod(m);
+	}
+	
+	
 	
 	
 	
diff --git a/src/de/dhbwstuttgart/syntaxtree/Class.java b/src/de/dhbwstuttgart/syntaxtree/Class.java
index a746b8c9..09c33f80 100755
--- a/src/de/dhbwstuttgart/syntaxtree/Class.java
+++ b/src/de/dhbwstuttgart/syntaxtree/Class.java
@@ -74,7 +74,6 @@ public class Class extends GTVDeclarationContext implements AClassOrInterface, I
     protected UsedId pkgName;
     protected Modifiers modifiers;
     protected String name;
-	private List<String> methodSignaturesAndNames = new LinkedList<>();
     
     /**
      * 
@@ -1042,14 +1041,6 @@ public class Class extends GTVDeclarationContext implements AClassOrInterface, I
 	public boolean isInterface(){
 		return false;
 	}
-
-	protected boolean methodExists(String nameAndSignature) {
-		return methodSignaturesAndNames.contains(nameAndSignature);
-	}
-	
-	protected void addMethod(String nameAndSignature) {
-		methodSignaturesAndNames.add(nameAndSignature);
-	}
 	
 	/*
     private Collection<? extends ByteCodeResult> getGenericClasses() {    	
diff --git a/src/de/dhbwstuttgart/syntaxtree/Method.java b/src/de/dhbwstuttgart/syntaxtree/Method.java
index 8a3370fb..ebed1381 100755
--- a/src/de/dhbwstuttgart/syntaxtree/Method.java
+++ b/src/de/dhbwstuttgart/syntaxtree/Method.java
@@ -634,10 +634,6 @@ public class Method extends Field implements IItemWithOffset, TypeInsertable
 			
 			Logger.getLogger("nameAndSignature").error(nameAndSignature, Section.CODEGEN);
 			
-			if(classObj.methodExists(nameAndSignature)){
-				Logger.getLogger("methodExists").debug(this.toString(), Section.CODEGEN);
-				continue;
-			}
 
 			short constants = Constants.ACC_PUBLIC; //Per Definition ist jede Methode public
 	    	if(this.modifiers != null && this.modifiers.includesModifier(new Static())) constants += Constants.ACC_STATIC;
@@ -649,7 +645,6 @@ public class Method extends Field implements IItemWithOffset, TypeInsertable
 			
 			//Methode generieren und anfügen:
 			cg.addMethod(method.createMethod(cg, getParameterList(), returnType, get_Block(), t));
-			classObj.addMethod(nameAndSignature);
 			
 			Logger.getLogger("createMethod").debug(this.toString(), Section.CODEGEN);
 		}
diff --git a/test/bytecode/types/AutoOverloadingMultiResultsTest.java b/test/bytecode/types/AutoOverloadingMultiResultsTest.java
index 37fa57a7..ce34f3f7 100644
--- a/test/bytecode/types/AutoOverloadingMultiResultsTest.java
+++ b/test/bytecode/types/AutoOverloadingMultiResultsTest.java
@@ -24,7 +24,6 @@ public class AutoOverloadingMultiResultsTest extends SourceFileBytecodeTest{
 	}
 	
 	@Test
-	@Ignore
 	public void testConstruct() throws Exception{
 	    ClassLoader classLoader = getClassLoader();
 
diff --git a/test/bytecode/types/MultiExtends.jav b/test/bytecode/types/MultiExtends.jav
new file mode 100644
index 00000000..d4ada054
--- /dev/null
+++ b/test/bytecode/types/MultiExtends.jav
@@ -0,0 +1,11 @@
+import java.util.Vector;
+
+class MultiExtends{
+        Integer method(Vector<Integer> a){
+        	return method2(a);
+        }
+        
+        Integer method2(Vector<Number> b){
+        	return 1;
+        }
+}
\ No newline at end of file
diff --git a/test/bytecode/types/MultiExtendsTest.java b/test/bytecode/types/MultiExtendsTest.java
new file mode 100644
index 00000000..066ad1ff
--- /dev/null
+++ b/test/bytecode/types/MultiExtendsTest.java
@@ -0,0 +1,35 @@
+package bytecode.types;
+
+import static org.junit.Assert.*;
+
+import java.io.File;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.Vector;
+
+import org.junit.Test;
+
+import org.junit.Ignore;
+
+import bytecode.SourceFileBytecodeTest;
+
+
+public class MultiExtendsTest extends SourceFileBytecodeTest{
+	@Override
+	protected void init() {
+		testName = "MultiExtends";
+		rootDirectory = System.getProperty("user.dir")+"/test/bytecode/types/";
+	}
+	
+	@Test
+	public void testConstruct() throws Exception{
+	    ClassLoader classLoader = getClassLoader();
+
+	    Class cls =  classLoader.loadClass(testName);
+	    
+		Object obj = cls.newInstance();
+		assertTrue(true);
+	}
+}