diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java
index 421f9cc..0c33485 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java
@@ -34,7 +34,6 @@
 import org.onlab.onos.store.service.NoSuchTableException;
 import org.onlab.onos.store.service.OptimisticLockException;
 import org.onlab.onos.store.service.OptionalResult;
-import org.onlab.onos.store.service.PreconditionFailedException;
 import org.onlab.onos.store.service.ReadRequest;
 import org.onlab.onos.store.service.ReadResult;
 import org.onlab.onos.store.service.WriteAborted;
@@ -195,8 +194,8 @@
     }
 
     @Override
-    public WriteResult write(WriteRequest request)
-            throws OptimisticLockException, PreconditionFailedException {
+    public WriteResult write(WriteRequest request) {
+//            throws OptimisticLockException, PreconditionFailedException {
         return writeNothrow(request).get();
     }