HCOLL-155 added two of peters tests and them implemented the code accordingly - the test are net.openhft.chronicle.map.ChronicleMapTest#testOffheapAcquireUsingLocked and net.openhft.chronicle.map.ChronicleMapTest#testOnheapAcquireUsingLocked

src/test/java/net/openhft/chronicle/map/ReplicationCheckingMap.java

@@ -252,12 +252,12 @@ public class ReplicationCheckingMap<K, V> implements ChronicleMap<K, V> {
     }
 
     @Override
-    public SegmentLock acquireUsingReadLocked(K key, V usingValue) {
+    public LockedEntry acquireUsingReadLocked(K key, V usingValue) {
         throw new UnsupportedOperationException();
     }
 
     @Override
-    public SegmentLock acquireUsingWriteLocked(K key, V usingValue) {
+    public LockedEntry acquireUsingWriteLocked(K key, V usingValue) {
         throw new UnsupportedOperationException();
     }