diff --git a/resources/bytecode/javFiles/VectorAdd.jav b/resources/bytecode/javFiles/VectorAdd.jav
index d5e50157..2ad73aa9 100644
--- a/resources/bytecode/javFiles/VectorAdd.jav
+++ b/resources/bytecode/javFiles/VectorAdd.jav
@@ -1,6 +1,6 @@
 import java.util.Vector;
 import java.lang.Integer;
-
+import java.lang.String;
 
 public class VectorAdd {
 	vectorAdd(v1, v2) {
@@ -13,4 +13,14 @@ public class VectorAdd {
 		} 
 		return erg; 
 	}
+
+    m(x, y, z) {
+        x = new Vector<Integer>();
+        y = new Vector<String>();
+        x.add(1);
+        y.add("2");
+        //Integer i = x.elementAt(0);
+        //String s = y.elementAt(0);
+        return z.addAll(x);
+    }
 }
diff --git a/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java b/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
index a6eca776..790a9084 100644
--- a/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
+++ b/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
@@ -244,6 +244,7 @@ public class ASTToTargetAST {
                                                  if (!(pair2.right.equals(tph2) && pair2.left.equals(type)))
                                                      continue;
                                                  if (tph.equals(tph2)) continue;
+                                                 if (!T1s.contains(tph) || !tph2.equals(T2)) continue;
 
                                                  var newPair = new PairTPHsmallerTPH(tph, tph2);
                                                  newPairs.add(newPair);