diff --git a/core/api/src/main/java/org/onosproject/net/statistic/FlowStatisticStore.java b/core/api/src/main/java/org/onosproject/net/statistic/FlowStatisticStore.java
index 3c2aa89..a27e167 100644
--- a/core/api/src/main/java/org/onosproject/net/statistic/FlowStatisticStore.java
+++ b/core/api/src/main/java/org/onosproject/net/statistic/FlowStatisticStore.java
@@ -1,65 +1,65 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.onosproject.net.statistic;
-
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.flow.FlowEntry;
-import org.onosproject.net.flow.FlowRule;
-
-import java.util.Set;
-
-/**
- * Flow Store to house the computed statistics.
- */
-public interface FlowStatisticStore {
-    /**
-     * Remove entries associated with this rule.
-     *
-     * @param rule {@link org.onosproject.net.flow.FlowRule}
-     */
-    void removeFlowStatistic(FlowRule rule);
-
-    /**
-     * Adds a flow stats observation for a flow rule. The previous flow will be removed.
-     *
-     * @param rule a {@link org.onosproject.net.flow.FlowEntry}
-     */
-    void addFlowStatistic(FlowEntry rule);
-
-    /**
-     * Updates a stats observation for a flow rule. The old flow stats will be moved to previous stats.
-     *
-     * @param rule a {@link org.onosproject.net.flow.FlowEntry}
-     */
-    void updateFlowStatistic(FlowEntry rule);
-
-    /**
-     * Fetches the current observed flow stats values.
-     *
-     * @param connectPoint the port to fetch information for
-     * @return set of current flow rules
-     */
-    Set<FlowEntry> getCurrentFlowStatistic(ConnectPoint connectPoint);
-
-    /**
-     * Fetches the current observed flow stats values.
-     *
-     * @param connectPoint the port to fetch information for
-     * @return set of current values
-     */
-    Set<FlowEntry> getPreviousFlowStatistic(ConnectPoint connectPoint);
-}
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.net.statistic;
+
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.flow.FlowEntry;
+import org.onosproject.net.flow.FlowRule;
+
+import java.util.Set;
+
+/**
+ * Flow Store to house the computed statistics.
+ */
+public interface FlowStatisticStore {
+    /**
+     * Remove entries associated with this rule.
+     *
+     * @param rule {@link org.onosproject.net.flow.FlowRule}
+     */
+    void removeFlowStatistic(FlowRule rule);
+
+    /**
+     * Adds a flow stats observation for a flow rule. The previous flow will be removed.
+     *
+     * @param rule a {@link org.onosproject.net.flow.FlowEntry}
+     */
+    void addFlowStatistic(FlowEntry rule);
+
+    /**
+     * Updates a stats observation for a flow rule. The old flow stats will be moved to previous stats.
+     *
+     * @param rule a {@link org.onosproject.net.flow.FlowEntry}
+     */
+    void updateFlowStatistic(FlowEntry rule);
+
+    /**
+     * Fetches the current observed flow stats values.
+     *
+     * @param connectPoint the port to fetch information for
+     * @return set of current flow rules
+     */
+    Set<FlowEntry> getCurrentFlowStatistic(ConnectPoint connectPoint);
+
+    /**
+     * Fetches the current observed flow stats values.
+     *
+     * @param connectPoint the port to fetch information for
+     * @return set of current values
+     */
+    Set<FlowEntry> getPreviousFlowStatistic(ConnectPoint connectPoint);
+}