diff --git a/net/api/src/main/java/org/onlab/onos/net/provider/ProviderId.java b/net/api/src/main/java/org/onlab/onos/net/provider/ProviderId.java
index 3681be5..3af20ad 100644
--- a/net/api/src/main/java/org/onlab/onos/net/provider/ProviderId.java
+++ b/net/api/src/main/java/org/onlab/onos/net/provider/ProviderId.java
@@ -1,5 +1,9 @@
 package org.onlab.onos.net.provider;
 
+import java.util.Objects;
+
+import static com.google.common.base.Objects.toStringHelper;
+
 /**
  * Notion of provider identity.
  */
@@ -7,37 +11,37 @@
 
     private final String id;
 
+    /**
+     * Creates a new provider identifier from the specified string.
+     * The providers are expected to follow the reverse DNS convention, e.g.
+     * {@code org.onlab.onos.provider.of.device}
+     *
+     * @param id string identifier
+     */
     public ProviderId(String id) {
         this.id = id;
     }
 
     @Override
-    public boolean equals(Object o) {
-        if (this == o) {
-            return true;
-        }
-        if (o == null || getClass() != o.getClass()) {
-            return false;
-        }
-
-        ProviderId that = (ProviderId) o;
-
-        if (!id.equals(that.id)) {
-            return false;
-        }
-
-        return true;
+    public int hashCode() {
+        return Objects.hash(id);
     }
 
     @Override
-    public int hashCode() {
-        return id.hashCode();
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final ProviderId other = (ProviderId) obj;
+        return Objects.equals(this.id, other.id);
     }
 
     @Override
     public String toString() {
-        return "ProviderId{" +
-                "id='" + id + '\'' +
-                '}';
+        return toStringHelper(this).add("id", id).toString();
     }
+
 }