diff --git a/driver-core/src/main/java/com/datastax/driver/core/Cluster.java b/driver-core/src/main/java/com/datastax/driver/core/Cluster.java
index e4bc42f4a0b..045f6ba5abc 100644
--- a/driver-core/src/main/java/com/datastax/driver/core/Cluster.java
+++ b/driver-core/src/main/java/com/datastax/driver/core/Cluster.java
@@ -113,6 +113,7 @@ protected Cluster(Initializer initializer) {
                 checkNotEmpty(initializer.getContactPoints()),
                 initializer.getConfiguration(),
                 initializer.getInitialListeners());
+        System.out.println("init finished");
     }
 
     private static List<InetSocketAddress> checkNotEmpty(List<InetSocketAddress> contactPoints) {
@@ -919,8 +920,10 @@ public Builder addContactPoint(String address) {
          * @see Builder#addContactPoint
          */
         public Builder addContactPoints(String... addresses) {
+            System.out.println("start to addContactPoints");
             for (String address : addresses)
                 addContactPoint(address);
+            System.out.println("finish addContactPoints");
             return this;
         }
 
@@ -1363,6 +1366,7 @@ public Collection<Host.StateListener> getInitialListeners() {
          * @return the newly built Cluster instance.
          */
         public Cluster build() {
+            System.out.println("start to build");
             return Cluster.buildFrom(this);
         }
     }
diff --git a/driver-examples/src/main/java/com/datastax/driver/examples/basic/CreateAndPopulateKeyspace.java b/driver-examples/src/main/java/com/datastax/driver/examples/basic/CreateAndPopulateKeyspace.java
index 0869385e6f8..eaf29c22358 100644
--- a/driver-examples/src/main/java/com/datastax/driver/examples/basic/CreateAndPopulateKeyspace.java
+++ b/driver-examples/src/main/java/com/datastax/driver/examples/basic/CreateAndPopulateKeyspace.java
@@ -15,10 +15,7 @@
  */
 package com.datastax.driver.examples.basic;
 
-import com.datastax.driver.core.Cluster;
-import com.datastax.driver.core.ResultSet;
-import com.datastax.driver.core.Row;
-import com.datastax.driver.core.Session;
+import com.datastax.driver.core.*;
 
 /**
  * Creates a keyspace and tables, and loads some data into them.
@@ -35,21 +32,23 @@
  */
 public class CreateAndPopulateKeyspace {
 
-    static String[] CONTACT_POINTS = {"127.0.0.1"};
-    static int PORT = 9042;
+    static String[] CONTACT_POINTS = {"10.0.0.23"};
+    static int PORT = 9160;
 
     public static void main(String[] args) {
 
         CreateAndPopulateKeyspace client = new CreateAndPopulateKeyspace();
 
+	    System.out.println("test");
         try {
-
             client.connect(CONTACT_POINTS, PORT);
             client.createSchema();
             client.loadData();
             client.querySchema();
 
-        } finally {
+        } catch (Exception e) {
+            e.printStackTrace();
+	    } finally {
             client.close();
         }
     }
@@ -67,11 +66,15 @@ public static void main(String[] args) {
      */
     public void connect(String[] contactPoints, int port) {
 
+	    System.out.println("tes2");
         cluster = Cluster.builder()
                 .addContactPoints(contactPoints).withPort(port)
+                .withProtocolVersion(ProtocolVersion.V2)
                 .build();
 
+        System.out.println("tes4");
         System.out.printf("Connected to cluster: %s%n", cluster.getMetadata().getClusterName());
+	    System.out.println("tes3");
 
         session = cluster.connect();
     }