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diff --git a/examples/annotations/examples/NativeCallBack.java b/examples/annotations/examples/NativeCallBack.java
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+import proguard.annotation.*;
+
+/**
+ * This application illustrates the use of annotations for configuring ProGuard.
+ *
+ * You can compile it with:
+ *     javac -classpath ../lib/annotations.jar NativeCallBack.java
+ * You can then process it with:
+ *     java -jar ../../../lib/proguard.jar @ ../examples.pro
+ *
+ * The annotation will preserve the class and its main method.
+ */
+@KeepApplication
+public class NativeCallBack
+{
+    /**
+     * Suppose this is a native method that computes an answer.
+     *
+     * The -keep option regular ProGuard configuration will make sure it is
+     * not renamed when processing this code.
+     */
+    public native int computeAnswer();
+
+
+    /**
+     * Suppose this method is called back from the above native method.
+     *
+     * ProGuard would remove it, because it is not referenced from java.
+     * The annotation will make sure it is preserved anyhow.
+     */
+    @Keep
+    public int getAnswer()
+    {
+        return 42;
+    }
+
+
+    public static void main(String[] args)
+    {
+        int answer = new NativeCallBack().computeAnswer();
+
+        System.out.println("The answer is " + answer);
+    }
+}