diff --git a/test/asp/unifywithoutwildcards/JavaTXCompilerASPTest.java b/test/asp/unifywithoutwildcards/JavaTXCompilerASPTest.java
index b9ac3e02..72742517 100644
--- a/test/asp/unifywithoutwildcards/JavaTXCompilerASPTest.java
+++ b/test/asp/unifywithoutwildcards/JavaTXCompilerASPTest.java
@@ -66,6 +66,10 @@ public class JavaTXCompilerASPTest {
         execute(new File(rootDirectory+"Matrix.jav"));
     }
     @Test
+    public void matrixTest() throws IOException, ClassNotFoundException, InterruptedException {
+        execute(new File(rootDirectory+"MatrixTest.jav"));
+    }
+    @Test
     public void packageTests() throws IOException, ClassNotFoundException, InterruptedException {
         execute(new File(rootDirectory+"Package.jav"));
     }
diff --git a/test/javFiles/MatrixTest.jav b/test/javFiles/MatrixTest.jav
new file mode 100644
index 00000000..574e2fe9
--- /dev/null
+++ b/test/javFiles/MatrixTest.jav
@@ -0,0 +1,11 @@
+import java.util.Vector;
+import java.lang.Object;
+
+class Matrix extends Vector<Vector<Object>> {
+	Object mul1(Object x, Object y) { return x;}
+	Object add1(Object x, Object y) { return x;}
+    mul(m) {
+        var ret = new Matrix();
+        return ret;
+    }
+}
diff --git a/test/javFiles/Vector.jav b/test/javFiles/Vector.jav
index b30d3d4f..5b28234a 100644
--- a/test/javFiles/Vector.jav
+++ b/test/javFiles/Vector.jav
@@ -1,9 +1,13 @@
 import java.util.Vector;
-import java.lang.Integer;
+import java.lang.Object;
 
 class MyVector{
 
 id(x){
-  return (x.elementAt(0));
+  Object i;
+  x.elementAt(i);
+  x.elementAt(i);
+  x.elementAt(i);
+  return x.elementAt(i);
 }
 }
\ No newline at end of file