diff --git a/test/078-polymorphic-virtual/src/Base.java b/test/078-polymorphic-virtual/src/Base.java
new file mode 100644
index 0000000..ec3aadd
--- /dev/null
+++ b/test/078-polymorphic-virtual/src/Base.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class Base extends Thread {
+    int value;
+
+    public void run() {
+        for (int i = 0; i < 10000000; i++) {
+            incrimentValue();
+        }
+    }
+
+    public void incrimentValue() {
+    }
+
+    public int getValue() {
+        return value;
+    }
+}
diff --git a/test/078-polymorphic-virtual/src/Derived1.java b/test/078-polymorphic-virtual/src/Derived1.java
new file mode 100644
index 0000000..57bd3b0
--- /dev/null
+++ b/test/078-polymorphic-virtual/src/Derived1.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class Derived1 extends Base {
+    public void incrimentValue() {
+        value += 1;
+    }
+}
diff --git a/test/078-polymorphic-virtual/src/Derived2.java b/test/078-polymorphic-virtual/src/Derived2.java
new file mode 100644
index 0000000..1d7de57
--- /dev/null
+++ b/test/078-polymorphic-virtual/src/Derived2.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class Derived2 extends Base {
+    public void incrimentValue() {
+        value += 2;
+    }
+}
diff --git a/test/078-polymorphic-virtual/src/Derived3.java b/test/078-polymorphic-virtual/src/Derived3.java
new file mode 100644
index 0000000..c2594d2
--- /dev/null
+++ b/test/078-polymorphic-virtual/src/Derived3.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class Derived3 extends Base {
+    public void incrimentValue() {
+        value += 3;
+    }
+}
diff --git a/test/078-polymorphic-virtual/src/Main.java b/test/078-polymorphic-virtual/src/Main.java
new file mode 100644
index 0000000..0514e53
--- /dev/null
+++ b/test/078-polymorphic-virtual/src/Main.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+public class Main {
+    public static void main(String args[]) {
+        Derived1 derived1 = new Derived1();
+        Derived2 derived2 = new Derived2();
+        Derived3 derived3 = new Derived3();
+
+        derived1.start();
+        derived2.start();
+        derived3.start();
+
+        try {
+            derived1.join();
+            derived2.join();
+            derived3.join();
+        } catch (Exception e) {
+            System.out.println(e);
+            return;
+        }
+
+        System.out.println(derived1.getValue());
+        System.out.println(derived2.getValue());
+        System.out.println(derived3.getValue());
+    }
+}