Add unit test for exercising AbstractMethodErrorStub code.

Change-Id: I6021459a75681c92a40931f591852e974f1ca1a6
diff --git a/test/AbstractMethod/AbstractMethod.java b/test/AbstractMethod/AbstractMethod.java
new file mode 100644
index 0000000..f40e9a9
--- /dev/null
+++ b/test/AbstractMethod/AbstractMethod.java
@@ -0,0 +1,14 @@
+// Copyright 2011 Google Inc. All Rights Reserved.
+
+abstract class AbstractMethod {
+  abstract void callme();
+
+  public AbstractMethod() {
+  }
+}
+
+class B extends AbstractMethod {
+  void callme() {
+    System.out.println("B's implementation of callme");
+  }
+}