...

diff --git a/src/sample/BeanWithCursor.java b/src/sample/sample/BeanWithCursor.java
similarity index 99%
rename from src/sample/BeanWithCursor.java
rename to src/sample/sample/BeanWithCursor.java
index 351f588..9babf71 100644
--- a/src/sample/BeanWithCursor.java
+++ b/src/sample/sample/BeanWithCursor.java
@@ -1,3 +1,4 @@
+package sample;
 // no package, i.e. at root of sample/extra
 
 import java.io.*;
diff --git a/src/sample/CustomSerializationView.java b/src/sample/sample/CustomSerializationView.java
similarity index 99%
rename from src/sample/CustomSerializationView.java
rename to src/sample/sample/CustomSerializationView.java
index aa580a0..94c2270 100644
--- a/src/sample/CustomSerializationView.java
+++ b/src/sample/sample/CustomSerializationView.java
@@ -1,3 +1,4 @@
+package sample;
 // no package, i.e. at root of sample/extra
 
 import java.util.*;
diff --git a/src/sample/UserSerializationExample.java b/src/sample/sample/UserSerializationExample.java
similarity index 98%
rename from src/sample/UserSerializationExample.java
rename to src/sample/sample/UserSerializationExample.java
index e0cde33..5683656 100644
--- a/src/sample/UserSerializationExample.java
+++ b/src/sample/sample/UserSerializationExample.java
@@ -1,3 +1,4 @@
+package sample;
 // no package, i.e. at root of sample/extra
 
 import java.io.*;