Index: broadcast/InMemoryBroadcaster.java
===================================================================
--- broadcast/InMemoryBroadcaster.java	(revision 1865629)
+++ broadcast/InMemoryBroadcaster.java	(working copy)
@@ -16,6 +16,7 @@
  */
 package org.apache.jackrabbit.oak.plugins.document.persistentCache.broadcast;
 
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
 
@@ -32,7 +33,7 @@
     public void send(ByteBuffer buff) {
         int start = buff.position();
         for (Listener l : listeners) {
-            buff.position(start);
+            ((Buffer)buff).position(start);
             l.receive(buff);
         }
     }
Index: broadcast/TCPBroadcaster.java
===================================================================
--- broadcast/TCPBroadcaster.java	(revision 1865629)
+++ broadcast/TCPBroadcaster.java	(working copy)
@@ -26,6 +26,7 @@
 import java.net.Socket;
 import java.net.SocketTimeoutException;
 import java.net.UnknownHostException;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
 import java.security.MessageDigest;
@@ -223,7 +224,7 @@
                                 ByteBuffer buff = ByteBuffer.wrap(data);
                                 int start = buff.position();
                                 for (Listener l : listeners) {
-                                    buff.position(start);
+                                    ((Buffer)buff).position(start);
                                     l.receive(buff);
                                 }
                             }
@@ -324,7 +325,7 @@
     public void send(ByteBuffer buff) {
         ByteBuffer b = ByteBuffer.allocate(buff.remaining());
         b.put(buff);
-        b.flip();
+        ((Buffer)b).flip();
         while (sendBuffer.size() > MAX_BUFFER_SIZE) {
             sendBuffer.poll();
         }
Index: broadcast/UDPBroadcaster.java
===================================================================
--- broadcast/UDPBroadcaster.java	(revision 1865629)
+++ broadcast/UDPBroadcaster.java	(working copy)
@@ -22,6 +22,7 @@
 import java.net.DatagramPacket;
 import java.net.InetAddress;
 import java.net.MulticastSocket;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.security.MessageDigest;
 import java.util.ArrayList;
@@ -132,10 +133,10 @@
                     continue;
                 }
                 ByteBuffer buff = ByteBuffer.wrap(receiveData);
-                buff.limit(len);
+                ((Buffer)buff).limit(len);
                 int start = key.length;
                 for (Listener l : listeners) {
-                    buff.position(start);
+                    ((Buffer)buff).position(start);
                     l.receive(buff);
                 }
             } catch (IOException e) {
Index: PersistentCache.java
===================================================================
--- PersistentCache.java	(revision 1865629)
+++ PersistentCache.java	(working copy)
@@ -17,6 +17,7 @@
 package org.apache.jackrabbit.oak.plugins.document.persistentCache;
 
 import java.io.File;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -524,10 +525,10 @@
         writer.apply(buff);
         ByteBuffer byteBuff = buff.getBuffer();
         int length = byteBuff.position();
-        byteBuff.limit(length);
+        ((Buffer)byteBuff).limit(length);
         // write length
         byteBuff.putInt(0, length);
-        byteBuff.position(0);
+        ((Buffer)byteBuff).position(0);
         b.send(byteBuff);
     }
     
@@ -540,7 +541,7 @@
             // process only messages from other senders
             receiveMessage(buff);
         }
-        buff.position(end);
+        ((Buffer)buff).position(end);
     }
     
     public static PersistentCacheStats getPersistentCacheStats(Cache<?, ?> cache) {