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diff --git a/examples_java/src/collections/ship/tuple/SupplierKey.java b/examples_java/src/collections/ship/tuple/SupplierKey.java
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+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 2002-2009 Oracle.  All rights reserved.
+ *
+ * $Id$
+ */
+
+package collections.ship.tuple;
+
+/**
+ * A SupplierKey serves as the key in the key/data pair for a supplier entity.
+ *
+ * <p> In this sample, SupplierKey is bound to the key's tuple storage entry
+ * using a TupleBinding.  Because it is not used directly as storage data, it
+ * does not need to be Serializable. </p>
+ *
+ * @author Mark Hayes
+ */
+public class SupplierKey {
+
+    private String number;
+
+    public SupplierKey(String number) {
+
+        this.number = number;
+    }
+
+    public final String getNumber() {
+
+        return number;
+    }
+
+    public String toString() {
+
+        return "[SupplierKey: number=" + number + ']';
+    }
+}