killbill-aplcache

diff --git a/payment/src/main/java/org/killbill/billing/payment/core/sm/OperationCallbackBase.java b/payment/src/main/java/org/killbill/billing/payment/core/sm/OperationCallbackBase.java
index f5c542d..34341d9 100644
--- a/payment/src/main/java/org/killbill/billing/payment/core/sm/OperationCallbackBase.java
+++ b/payment/src/main/java/org/killbill/billing/payment/core/sm/OperationCallbackBase.java
@@ -35,7 +35,7 @@ import org.slf4j.LoggerFactory;
 
 public abstract class OperationCallbackBase<CallbackOperationResult, CallbackOperationException extends Exception> {
 
-    protected final Logger logger = LoggerFactory.getLogger(OperationCallbackBase.class);
+    private final Logger logger = LoggerFactory.getLogger(OperationCallbackBase.class);
 
     private final GlobalLocker locker;
     private final PluginDispatcher<OperationResult> paymentPluginDispatcher;

diff --git a/payment/src/main/java/org/killbill/billing/payment/core/sm/payments/PaymentOperation.java b/payment/src/main/java/org/killbill/billing/payment/core/sm/payments/PaymentOperation.java
index 4b11c6b..454e025 100644
--- a/payment/src/main/java/org/killbill/billing/payment/core/sm/payments/PaymentOperation.java
+++ b/payment/src/main/java/org/killbill/billing/payment/core/sm/payments/PaymentOperation.java
@@ -45,6 +45,8 @@ import org.killbill.billing.payment.provider.DefaultNoOpPaymentInfoPlugin;
 import org.killbill.billing.util.config.PaymentConfig;
 import org.killbill.commons.locker.GlobalLocker;
 import org.killbill.commons.locker.LockFailedException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.google.common.base.MoreObjects;
 import com.google.common.base.Predicate;
@@ -54,6 +56,8 @@ import com.google.common.collect.Iterables;
 // Encapsulates the payment specific logic
 public abstract class PaymentOperation extends OperationCallbackBase<PaymentTransactionInfoPlugin, PaymentPluginApiException> implements OperationCallback {
 
+    private final Logger logger = LoggerFactory.getLogger(PaymentOperation.class);
+
     protected final PaymentAutomatonDAOHelper daoHelper;
     protected PaymentPluginApi plugin;