diff -r 000000000000 -r 716af5f2ebd1 samples/messagedigest/src-new-api/org/apidesign/impl/security/friendapi/DigestImplementation.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/samples/messagedigest/src-new-api/org/apidesign/impl/security/friendapi/DigestImplementation.java	Sat Jun 14 09:52:23 2008 +0200
@@ -0,0 +1,23 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package org.apidesign.impl.security.friendapi;
+
+import java.nio.ByteBuffer;
+
+/**
+ *
+ * @author Jaroslav Tulach
+ */
+public abstract class DigestImplementation {
+    final String name;
+    
+    protected DigestImplementation(String algorithm) {
+        this.name = algorithm;
+    }
+    
+    public abstract void update(ByteBuffer bb);
+    public abstract byte[] digest();
+}