diff --git a/apps/iptopology-api/src/main/java/org/onosproject/iptopology/api/DefaultDeviceIntf.java b/apps/iptopology-api/src/main/java/org/onosproject/iptopology/api/DefaultDeviceIntf.java
index e40cbfc..292fce0 100644
--- a/apps/iptopology-api/src/main/java/org/onosproject/iptopology/api/DefaultDeviceIntf.java
+++ b/apps/iptopology-api/src/main/java/org/onosproject/iptopology/api/DefaultDeviceIntf.java
@@ -1,79 +1,79 @@
-/*
- * 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.iptopology.api;
-
-import static com.google.common.base.MoreObjects.toStringHelper;
-
-import java.util.Objects;
-
-import org.onosproject.net.Element;
-
-/**
- * Default Device interface implementation.
- */
-public class DefaultDeviceIntf implements DeviceIntf {
-
-    private final Element element;
-    private final DeviceInterface deviceInterface;
-
-    /**
-     * Constructor to initialize device interface parameters.
-     *
-     * @param element parent network element
-     * @param deviceInterface device interface
-     */
-    public DefaultDeviceIntf(Element element, DeviceInterface deviceInterface) {
-        this.element = element;
-        this.deviceInterface = deviceInterface;
-    }
-
-    @Override
-    public Element element() {
-        return element;
-    }
-
-    @Override
-    public DeviceInterface deviceInterface() {
-        return deviceInterface;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(element, deviceInterface);
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-
-        if (obj instanceof DefaultDeviceIntf) {
-            final DefaultDeviceIntf other = (DefaultDeviceIntf) obj;
-            return Objects.equals(this.element.id(), other.element.id())
-                    && Objects.equals(this.deviceInterface, other.deviceInterface);
-        }
-        return false;
-    }
-
-    @Override
-    public String toString() {
-        return toStringHelper(this)
-                .add("element", element.id())
-                .add("deviceInterface", deviceInterface)
-                .toString();
-    }
+/*
+ * 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.iptopology.api;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+
+import java.util.Objects;
+
+import org.onosproject.net.Element;
+
+/**
+ * Default Device interface implementation.
+ */
+public class DefaultDeviceIntf implements DeviceIntf {
+
+    private final Element element;
+    private final DeviceInterface deviceInterface;
+
+    /**
+     * Constructor to initialize device interface parameters.
+     *
+     * @param element parent network element
+     * @param deviceInterface device interface
+     */
+    public DefaultDeviceIntf(Element element, DeviceInterface deviceInterface) {
+        this.element = element;
+        this.deviceInterface = deviceInterface;
+    }
+
+    @Override
+    public Element element() {
+        return element;
+    }
+
+    @Override
+    public DeviceInterface deviceInterface() {
+        return deviceInterface;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(element, deviceInterface);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (obj instanceof DefaultDeviceIntf) {
+            final DefaultDeviceIntf other = (DefaultDeviceIntf) obj;
+            return Objects.equals(this.element.id(), other.element.id())
+                    && Objects.equals(this.deviceInterface, other.deviceInterface);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(this)
+                .add("element", element.id())
+                .add("deviceInterface", deviceInterface)
+                .toString();
+    }
 }
\ No newline at end of file