diff --git a/src/mycompiler/mystatement/PostIncExpr.java b/src/mycompiler/mystatement/PostIncExpr.java
index ae6ddbf54..65e3e7266 100755
--- a/src/mycompiler/mystatement/PostIncExpr.java
+++ b/src/mycompiler/mystatement/PostIncExpr.java
@@ -180,8 +180,10 @@ public class PostIncExpr extends UnaryExpr
 
 	@Override
 public JavaCodeResult printJavaCode(ResultSet resultSet) {
-		// TODO Auto-generated method stub
-		return null;
+		JavaCodeResult ret = new JavaCodeResult();
+		ret.attach(this.expr.printJavaCode(resultSet));
+		ret.attach("++");
+		return ret;
 	}
 
 	@Override
diff --git a/src/mycompiler/mytype/RefType.java b/src/mycompiler/mytype/RefType.java
index 72810d735..6cc1a93a7 100755
--- a/src/mycompiler/mytype/RefType.java
+++ b/src/mycompiler/mytype/RefType.java
@@ -91,6 +91,7 @@ public class RefType extends Type implements IMatchable
     @Override
 	public int hashCode() {
     	int hash = 0;
+    	hash += super.hashCode();
     	hash += this.name.hashCode();//Nur den Name hashen. Sorgt für langsame, aber funktionierende HashMaps
     	return hash;
 	}
diff --git a/test/plugindevelopment/TypeInsertTests/LambdaTest22.jav b/test/plugindevelopment/TypeInsertTests/LambdaTest22.jav
index e0d9849a1..001e3d5bb 100644
--- a/test/plugindevelopment/TypeInsertTests/LambdaTest22.jav
+++ b/test/plugindevelopment/TypeInsertTests/LambdaTest22.jav
@@ -2,24 +2,34 @@ import java.util.Vector;
 
 class Matrix extends Vector<Vector<Integer>> {
 
- 	mvmul(Test v) {
- 		i;
-		ele;
-		v.add(i);
-		return this;
+	Matrix mul(m){
+		Vector<Vector<Integer>> ret;
+		ret = new Matrix();
+		i;
+		i = 0;
+		while(i < this.size()) {
+			v1;
+			v2;
+			v1 = this.elementAt(i);
+			v2 = new Vector<Integer>();
+			j;
+			j = 0;
+			while(j < v1.size()) {
+				erg;
+				erg = 0;
+				k;
+				k = 0;
+				while(k < v1.size()) {
+					erg = erg + v1.elementAt(k).intValue() * m.elementAt(k).elementAt(j).intValue();
+					k++;
+				}
+				v2.addElement(new Integer(erg));
+				j++;
+			}
+			ret.addElement(v2);
+			i++;
+		}
+		return ret;
 	}
-}	
-
-class Test{
-
-void add(Integer i){
-
-}
-
-elementAt(Integer i){
-return 1;
-}
-size(){
-return 1;
-}
+	
 }
\ No newline at end of file