diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/NullFlowRuleProvider.java b/providers/null/src/main/java/org/onosproject/provider/nil/NullFlowRuleProvider.java
index f118f09..cbfe3ef 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/NullFlowRuleProvider.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/NullFlowRuleProvider.java
@@ -16,21 +16,18 @@
 package org.onosproject.provider.nil;
 
 import com.google.common.collect.Sets;
-
 import io.netty.util.Timeout;
 import io.netty.util.TimerTask;
-
 import org.onlab.util.Timer;
-import org.onosproject.core.ApplicationId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.flow.CompletedBatchOperation;
 import org.onosproject.net.flow.DefaultFlowEntry;
 import org.onosproject.net.flow.FlowEntry;
 import org.onosproject.net.flow.FlowRule;
-import org.onosproject.net.flow.oldbatch.FlowRuleBatchEntry;
-import org.onosproject.net.flow.oldbatch.FlowRuleBatchOperation;
 import org.onosproject.net.flow.FlowRuleProvider;
 import org.onosproject.net.flow.FlowRuleProviderService;
+import org.onosproject.net.flow.oldbatch.FlowRuleBatchEntry;
+import org.onosproject.net.flow.oldbatch.FlowRuleBatchOperation;
 import org.slf4j.Logger;
 
 import java.util.Collections;
@@ -89,11 +86,6 @@
     }
 
     @Override
-    public void removeRulesById(ApplicationId id, FlowRule... flowRules) {
-        throw new UnsupportedOperationException("Cannot remove by appId from null provider");
-    }
-
-    @Override
     public void executeBatch(FlowRuleBatchOperation batch) {
         // TODO: consider checking mastership
         Set<FlowEntry> entries =