diff --git a/core/annotations/src/main/java/software/amazon/awssdk/annotations/BadBoy.java b/core/annotations/src/main/java/software/amazon/awssdk/annotations/BadBoy.java
new file mode 100644
index 000000000000..f15ee8f165f9
--- /dev/null
+++ b/core/annotations/src/main/java/software/amazon/awssdk/annotations/BadBoy.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file 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.
+ */
+
+package software.amazon.awssdk.annotations;
+
+import java.util.concurrent.ThreadLocalRandom;
+
+@SdkPublicApi
+public class BadBoy {
+    private BadBoy() {}
+
+    public static void badMethod() {
+        String foo = maybeNull();
+        new Exception(foo.replace("a", "")).printStackTrace();
+    }
+
+    private static String maybeNull() {
+        if (ThreadLocalRandom.current().nextInt(5) == 0) {
+            return null;
+        }
+        return "";
+    }
+
+}