diff --git a/src/test/one/A.java b/src/test/one/A.java
new file mode 100644
index 0000000..323abbd
--- /dev/null
+++ b/src/test/one/A.java
@@ -0,0 +1,7 @@
+package test.one;
+
+public class A implements MyMethodInterface {
+    public void myMethod() {
+
+    }
+}
diff --git a/src/test/one/B.java b/src/test/one/B.java
new file mode 100644
index 0000000..7e049c4
--- /dev/null
+++ b/src/test/one/B.java
@@ -0,0 +1,7 @@
+package test.one;
+
+public class B implements MyMethodInterface {
+    public void myMethod() {
+
+    }
+}
diff --git a/src/test/one/Main.java b/src/test/one/Main.java
new file mode 100644
index 0000000..7e620f8
--- /dev/null
+++ b/src/test/one/Main.java
@@ -0,0 +1,13 @@
+package test.one;
+
+public class Main {
+    public static void main(String[] args) {
+        Object[] objects = {
+                new A(),
+                new B(),
+        };
+        for (Object object : objects) {
+            ((MyMethodInterface)object).myMethod();
+        }
+    }
+}
diff --git a/src/test/one/MyMethodInterface.java b/src/test/one/MyMethodInterface.java
new file mode 100644
index 0000000..282ee3c
--- /dev/null
+++ b/src/test/one/MyMethodInterface.java
@@ -0,0 +1,5 @@
+package test.one;
+
+public interface MyMethodInterface {
+    void myMethod();
+}