Standardize how ReferenceCounted resources are managed and traced, https://github.com/OpenHFT/Chronicle-Core/issues/121

src/main/java/net/openhft/chronicle/map/ReplicatedChronicleMap.java

@@ -524,11 +524,11 @@ public class ReplicatedChronicleMap<K, V, R> extends VanillaChronicleMap<K, V, R
         key.writeTo(destination, destination.writePosition());
         destination.writeSkip(key.size());
 
-        boolean debugEnabled = LOG.isDebugEnabled();
+        boolean traceEnabled = LOG.isTraceEnabled();
         String message = null;
-        if (debugEnabled) {
+        if (traceEnabled) {
             if (isDeleted) {
-                LOG.debug("WRITING ENTRY TO DEST -  into local-id={}, remove(key={})",
+                LOG.trace("WRITING ENTRY TO DEST -  into local-id={}, remove(key={})",
                         identifier(), key);
             } else {
                 message = String.format(
@@ -545,7 +545,7 @@ public class ReplicatedChronicleMap<K, V, R> extends VanillaChronicleMap<K, V, R
         value.writeTo(destination, destination.writePosition());
         destination.writeSkip(value.size());
 
-        if (debugEnabled) {
+        if (traceEnabled) {
             LOG.debug(message + "value=" + value + ")");
         }
     }

src/main/java/net/openhft/chronicle/map/impl/stage/data/ZeroBytesStore.java

@@ -19,6 +19,7 @@ package net.openhft.chronicle.map.impl.stage.data;
 import net.openhft.chronicle.bytes.BytesStore;
 import net.openhft.chronicle.bytes.RandomDataInput;
 import net.openhft.chronicle.core.OS;
+import net.openhft.chronicle.core.io.ReferenceOwner;
 import org.jetbrains.annotations.Nullable;
 
 import java.nio.BufferOverflowException;
@@ -37,6 +38,7 @@ public enum ZeroBytesStore implements BytesStore<ZeroBytesStore, Void> {
         throw new UnsupportedOperationException("Cannot get the address of nothing");
     }
 
+
     @Override
     public int peekUnsignedByte(long offset) {
         return 0;
@@ -155,24 +157,34 @@ public enum ZeroBytesStore implements BytesStore<ZeroBytesStore, Void> {
         return true;
     }
 
+
     @Override
-    public void reserve() throws IllegalStateException {
+    public void reserve(ReferenceOwner id) throws IllegalStateException {
     }
 
     @Override
-    public void release() throws IllegalStateException {
+    public boolean tryReserve(ReferenceOwner id) throws IllegalStateException {
+        return false;
     }
 
     @Override
-    public long refCount() {
+    public boolean reservedBy(ReferenceOwner owner) {
+        return true;
+    }
+
+    @Override
+    public void release(ReferenceOwner id) throws IllegalStateException {
+    }
+
+    @Override
+    public void releaseLast(ReferenceOwner id) throws IllegalStateException {
+    }
+
+    @Override
+    public int refCount() {
         return 0;
     }
 
-    @Override
-    public boolean tryReserve() {
-        throw new UnsupportedOperationException("todo");
-    }
-
     @Override
     public ZeroBytesStore writeByte(long l, byte b) {
         throw new UnsupportedOperationException();