http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/Scheduler.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/Scheduler.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/Scheduler.java
index 544f333..0bcbba5 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/Scheduler.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/Scheduler.java
@@ -106,7 +106,7 @@ final class Scheduler {
   }
 
   /**
-   * Clear the pending list
+   * Clear the pending list.
    */
   public synchronized SchedulerResponse clear() {
     final int count = taskQueue.size();

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerHttpHandler.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerHttpHandler.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerHttpHandler.java
index 071057e..754852d 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerHttpHandler.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerHttpHandler.java
@@ -30,7 +30,7 @@ import java.util.List;
 import java.util.Map;
 
 /**
- * Receive HttpRequest so that it can handle the command list
+ * Receive HttpRequest so that it can handle the command list.
  */
 final class SchedulerHttpHandler implements HttpHandler {
   final InjectionFuture<SchedulerDriver> schedulerDriver;

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEF.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEF.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEF.java
index 80c9096..13d678a 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEF.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEF.java
@@ -39,12 +39,12 @@ import java.io.IOException;
  */
 public final class SchedulerREEF {
   /**
-   * The upper limit on the number of Evaluators that the local 
resourcemanager will hand out concurrently
+   * The upper limit on the number of Evaluators that the local 
resourcemanager will hand out concurrently.
    */
   private static final int MAX_NUMBER_OF_EVALUATORS = 3;
 
   /**
-   * Command line parameter = true to reuse evaluators,
+   * Command line parameter = true to reuse evaluators,.
    * or false to allocate/close for each iteration
    */
   @NamedParameter(doc = "Whether or not to reuse evaluators",
@@ -100,7 +100,7 @@ public final class SchedulerREEF {
   }
 
   /**
-   * Main program
+   * Main program.
    * @param args
    * @throws InjectionException
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEFYarn.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEFYarn.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEFYarn.java
index c42cba5..9dbd56d 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEFYarn.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerREEFYarn.java
@@ -32,7 +32,7 @@ import static 
org.apache.reef.examples.scheduler.SchedulerREEF.runTaskScheduler;
  */
 public final class SchedulerREEFYarn {
   /**
-   * Launch the scheduler with YARN client configuration
+   * Launch the scheduler with YARN client configuration.
    * @param args
    * @throws InjectionException
    * @throws java.io.IOException

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerResponse.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerResponse.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerResponse.java
index 50293e6..fbd0670 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerResponse.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/SchedulerResponse.java
@@ -44,28 +44,28 @@ final class SchedulerResponse {
   private static final int SC_NOT_FOUND = 404;
 
   /**
-   * Create a response with OK status
+   * Create a response with OK status.
    */
   public static SchedulerResponse OK(final String message){
     return new SchedulerResponse (SC_OK, message);
   }
 
   /**
-   * Create a response with BAD_REQUEST status
+   * Create a response with BAD_REQUEST status.
    */
   public static SchedulerResponse BAD_REQUEST(final String message){
     return new SchedulerResponse (SC_BAD_REQUEST, message);
   }
 
   /**
-   * Create a response with FORBIDDEN status
+   * Create a response with FORBIDDEN status.
    */
   public static SchedulerResponse FORBIDDEN(final String message){
     return new SchedulerResponse (SC_FORBIDDEN, message);
   }
 
   /**
-   * Create a response with NOT FOUND status
+   * Create a response with NOT FOUND status.
    */
   public static SchedulerResponse NOT_FOUND(final String message){
     return new SchedulerResponse (SC_NOT_FOUND, message);

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/package-info.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/package-info.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/package-info.java
index 728806c..b647063 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/package-info.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/scheduler/package-info.java
@@ -17,6 +17,6 @@
  * under the License.
  */
 /**
- * Task scheduler example based on reef-webserver
+ * Task scheduler example based on reef-webserver.
  */
-package org.apache.reef.examples.scheduler;
\ No newline at end of file
+package org.apache.reef.examples.scheduler;

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/Launch.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/Launch.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/Launch.java
index 3a64b9b..36e4c63 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/Launch.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/Launch.java
@@ -42,11 +42,11 @@ import java.util.logging.Logger;
 public final class Launch {
 
   /**
-   * Standard Java logger
+   * Standard Java logger.
    */
   private static final Logger LOG = Logger.getLogger(Launch.class.getName());
   /**
-   * The upper limit on the number of Evaluators that the local 
resourcemanager will hand out concurrently
+   * The upper limit on the number of Evaluators that the local 
resourcemanager will hand out concurrently.
    */
   private static final int MAX_NUMBER_OF_EVALUATORS = 4;
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/ObjectWritableCodec.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/ObjectWritableCodec.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/ObjectWritableCodec.java
index 72b257a..e446fd0 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/ObjectWritableCodec.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/ObjectWritableCodec.java
@@ -34,7 +34,7 @@ import java.util.logging.Logger;
 public class ObjectWritableCodec<T extends Writable> implements Codec<T> {
 
   /**
-   * Standard Java logger
+   * Standard Java logger.
    */
   private static final Logger LOG = 
Logger.getLogger(ObjectWritableCodec.class.getName());
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/SuspendDriver.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/SuspendDriver.java
 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/SuspendDriver.java
index 38d7542..1e044b5 100644
--- 
a/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/SuspendDriver.java
+++ 
b/lang/java/reef-examples/src/main/java/org/apache/reef/examples/suspend/SuspendDriver.java
@@ -59,7 +59,7 @@ public class SuspendDriver {
   private static final Logger LOG = 
Logger.getLogger(SuspendDriver.class.getName());
 
   /**
-   * Number of evaluators to request
+   * Number of evaluators to request.
    */
   private static final int NUM_EVALUATORS = 2;
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorRequestSerializer.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorRequestSerializer.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorRequestSerializer.java
index 2f493c6..7f46a8f 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorRequestSerializer.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorRequestSerializer.java
@@ -24,7 +24,7 @@ import org.apache.reef.driver.evaluator.EvaluatorRequest;
 import java.io.*;
 
 /**
- * Serialize and deserialize EvaluatorRequest objects
+ * Serialize and deserialize EvaluatorRequest objects.
  * Currently only supports number & memory
  * Does not take care of Resource Descriptor
  */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorToPartitionMapper.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorToPartitionMapper.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorToPartitionMapper.java
index 5a5c0ff..fda95ae 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorToPartitionMapper.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/EvaluatorToPartitionMapper.java
@@ -56,7 +56,7 @@ public class EvaluatorToPartitionMapper<V extends InputSplit> 
{
   private final BlockingQueue<NumberedSplit<V>> unallocatedSplits = new 
LinkedBlockingQueue<>();
 
   /**
-   * Initializes the locations of splits mapping
+   * Initializes the locations of splits mapping.
    *
    * @param splits
    */
@@ -88,7 +88,7 @@ public class EvaluatorToPartitionMapper<V extends InputSplit> 
{
   }
 
   /**
-   * Get an input split to be assigned to this
+   * Get an input split to be assigned to this.
    * evaluator
    * <p/>
    * Allocates one if its not already allocated

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputFormatExternalConstructor.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputFormatExternalConstructor.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputFormatExternalConstructor.java
index aef6226..fee9fbf 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputFormatExternalConstructor.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputFormatExternalConstructor.java
@@ -27,7 +27,7 @@ import javax.inject.Inject;
 
 
 /**
- * A Tang External Constructor to inject the required
+ * A Tang External Constructor to inject the required.
  * InputFormat
  */
 @DriverSide

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputSplitExternalConstructor.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputSplitExternalConstructor.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputSplitExternalConstructor.java
index cedad2d..6a99af3 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputSplitExternalConstructor.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/InputSplitExternalConstructor.java
@@ -29,7 +29,7 @@ import org.apache.reef.tang.annotations.Parameter;
 import javax.inject.Inject;
 
 /**
- * A Tang external constructor to inject an InputSplit
+ * A Tang external constructor to inject an InputSplit.
  * by deserializing the serialized input split assigned
  * to this evaluator
  */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/NumberedSplit.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/NumberedSplit.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/NumberedSplit.java
index 6cef3b7..2ce3418 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/NumberedSplit.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/data/loading/impl/NumberedSplit.java
@@ -21,7 +21,7 @@ package org.apache.reef.io.data.loading.impl;
 import org.apache.hadoop.mapred.InputSplit;
 
 /**
- * A tuple of an object of type E and an integer index
+ * A tuple of an object of type E and an integer index.
  * Used inside {@link EvaluatorToPartitionMapper} to
  * mark the partitions associated with each {@link InputSplit}
  *
@@ -62,4 +62,4 @@ final class NumberedSplit<E> implements 
Comparable<NumberedSplit<E>> {
     else
       return 1;
   }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/ConnectionFactory.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/ConnectionFactory.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/ConnectionFactory.java
index 40b28b0..76bb6af 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/ConnectionFactory.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/ConnectionFactory.java
@@ -21,14 +21,14 @@ package org.apache.reef.io.network;
 import org.apache.reef.wake.Identifier;
 
 /**
- * Factory that creates a new connection
+ * Factory that creates a new connection.
  *
  * @param <T> type
  */
 public interface ConnectionFactory<T> {
 
   /**
-   * Creates a new connection
+   * Creates a new connection.
    *
    * @param destId a destination identifier
    * @return a connection

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/Message.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/Message.java 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/Message.java
index 1aaa7e0..a14b908 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/Message.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/Message.java
@@ -21,28 +21,28 @@ package org.apache.reef.io.network;
 import org.apache.reef.wake.Identifier;
 
 /**
- * Network message
+ * Network message.
  *
  * @param <T>
  */
 public interface Message<T> {
 
   /**
-   * Gets a source identifier
+   * Gets a source identifier.
    *
    * @return an identifier
    */
   Identifier getSrcId();
 
   /**
-   * Gets a destination identifier
+   * Gets a destination identifier.
    *
    * @return an identifier
    */
   Identifier getDestId();
 
   /**
-   * Gets data
+   * Gets data.
    *
    * @return an iterable of data objects
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/NetworkRuntimeException.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/NetworkRuntimeException.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/NetworkRuntimeException.java
index 4424e8d..cbac28f 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/NetworkRuntimeException.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/NetworkRuntimeException.java
@@ -19,13 +19,13 @@
 package org.apache.reef.io.network.exception;
 
 /**
- * Network service resourcemanager exception
+ * Network service resourcemanager exception.
  */
 public class NetworkRuntimeException extends RuntimeException {
   private static final long serialVersionUID = 1L;
 
   /**
-   * Constructs a new network resourcemanager exception with the specified 
detail message and cause
+   * Constructs a new network resourcemanager exception with the specified 
detail message and cause.
    *
    * @param s the detailed message
    * @param e the cause
@@ -35,7 +35,7 @@ public class NetworkRuntimeException extends RuntimeException 
{
   }
 
   /**
-   * Constructs a new network resourcemanager exception with the specified 
detail message
+   * Constructs a new network resourcemanager exception with the specified 
detail message.
    *
    * @param s the detailed message
    */
@@ -44,11 +44,11 @@ public class NetworkRuntimeException extends 
RuntimeException {
   }
 
   /**
-   * Constructs a new network resourcemanager exception with the specified 
cause
+   * Constructs a new network resourcemanager exception with the specified 
cause.
    *
    * @param e the cause
    */
   public NetworkRuntimeException(Throwable e) {
     super(e);
   }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/ParentDeadException.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/ParentDeadException.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/ParentDeadException.java
index 6e406d3..e9b4a19 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/ParentDeadException.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/exception/ParentDeadException.java
@@ -19,7 +19,7 @@
 package org.apache.reef.io.network.exception;
 
 /**
- * This exception is thrown by a child task
+ * This exception is thrown by a child task.
  * when it is told that its Parent died
  */
 public class ParentDeadException extends Exception {

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/GroupChanges.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/GroupChanges.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/GroupChanges.java
index 1758646..28dbb9e 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/GroupChanges.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/GroupChanges.java
@@ -21,7 +21,7 @@ package org.apache.reef.io.network.group.api;
 import org.apache.reef.annotations.audience.TaskSide;
 
 /**
- * Represents the changes in Topology that happened in a communication group
+ * Represents the changes in Topology that happened in a communication group.
  * from the last time the user asked for topology changes
  */
 @TaskSide

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/CommunicationGroupDriver.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/CommunicationGroupDriver.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/CommunicationGroupDriver.java
index ca486a3..7916951 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/CommunicationGroupDriver.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/CommunicationGroupDriver.java
@@ -35,7 +35,7 @@ import org.apache.reef.tang.annotations.Name;
 public interface CommunicationGroupDriver {
 
   /**
-   * Add the broadcast operator specified by the
+   * Add the broadcast operator specified by the.
    * 'spec' with name 'operatorName' into this
    * Communication Group
    *
@@ -46,7 +46,7 @@ public interface CommunicationGroupDriver {
   public CommunicationGroupDriver addBroadcast(Class<? extends Name<String>> 
operatorName, BroadcastOperatorSpec spec);
 
   /**
-   * Add the reduce operator specified by the
+   * Add the reduce operator specified by the.
    * 'spec' with name 'operatorName' into this
    * Communication Group
    *
@@ -57,7 +57,7 @@ public interface CommunicationGroupDriver {
   public CommunicationGroupDriver addReduce(Class<? extends Name<String>> 
operatorName, ReduceOperatorSpec spec);
 
   /**
-   * This signals to the service that no more
+   * This signals to the service that no more.
    * operator specs will be added to this communication
    * group and an attempt to do that will throw an
    * IllegalStateException

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommDriver.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommDriver.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommDriver.java
index fc7e919..aa62673 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommDriver.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommDriver.java
@@ -27,7 +27,7 @@ import org.apache.reef.tang.annotations.DefaultImplementation;
 import org.apache.reef.tang.annotations.Name;
 
 /**
- * The driver side interface of Group Communication
+ * The driver side interface of Group Communication.
  * which is the entry point for the service
  */
 @DriverSide
@@ -36,7 +36,7 @@ import org.apache.reef.tang.annotations.Name;
 public interface GroupCommDriver {
 
   /**
-   * Create a new communication group with the specified name
+   * Create a new communication group with the specified name.
    * and the minimum number of tasks needed in this group before
    * communication can start
    *
@@ -47,7 +47,7 @@ public interface GroupCommDriver {
   CommunicationGroupDriver newCommunicationGroup(Class<? extends Name<String>> 
groupName, int numberOfTasks);
 
   /**
-   * Tests whether the activeContext is a context configured
+   * Tests whether the activeContext is a context configured.
    * using the Group Communication Service
    *
    * @param activeContext

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommServiceDriver.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommServiceDriver.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommServiceDriver.java
index a097075..1af2eb8 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommServiceDriver.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/GroupCommServiceDriver.java
@@ -34,7 +34,7 @@ import org.apache.reef.wake.EStage;
 public interface GroupCommServiceDriver extends GroupCommDriver {
 
   /**
-   * Not user facing but used the Group Communication Service class
+   * Not user facing but used the Group Communication Service class.
    *
    * @return The running task stage that will handle the RunningTask
    * events
@@ -42,7 +42,7 @@ public interface GroupCommServiceDriver extends 
GroupCommDriver {
   EStage<RunningTask> getGroupCommRunningTaskStage();
 
   /**
-   * Not user facing but used the Group Communication Service class
+   * Not user facing but used the Group Communication Service class.
    *
    * @return The running task stage that will handle the FailedTask
    * events
@@ -50,7 +50,7 @@ public interface GroupCommServiceDriver extends 
GroupCommDriver {
   EStage<FailedTask> getGroupCommFailedTaskStage();
 
   /**
-   * Not user facing but used the Group Communication Service class
+   * Not user facing but used the Group Communication Service class.
    *
    * @return The running task stage that will handle the FailedEvaluator
    * events

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNode.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNode.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNode.java
index d16d4ea..28dcf4d 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNode.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNode.java
@@ -21,7 +21,7 @@ package org.apache.reef.io.network.group.api.driver;
 import org.apache.reef.io.network.group.impl.GroupCommunicationMessage;
 
 /**
- * A node in the Topology representing a Task on the driver
+ * A node in the Topology representing a Task on the driver.
  * Impl should maintain state relating to whether task is running/dead and
  * status of neighboring nodes and send ctrl msgs to the tasks indicating
  * topology changing events
@@ -63,20 +63,20 @@ public interface TaskNode {
   void onChildDead(String childId);
 
   /**
-   * Check if this node is ready for sending
+   * Check if this node is ready for sending.
    * TopologySetup
    */
   void checkAndSendTopologySetupMessage();
 
   /**
-   * Check if the neighbor node with id source
+   * Check if the neighbor node with id source.
    * is ready for sending TopologySetup
    * @param source
    */
   void checkAndSendTopologySetupMessageFor(String source);
 
   /**
-   * reset topology setup ensures that update topology is not sent to someone
+   * reset topology setup ensures that update topology is not sent to someone.
    * who is already updating topology which is usually when they are just
    * (re)starting
    *

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNodeStatus.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNodeStatus.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNodeStatus.java
index 93955e1..a13c16d 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNodeStatus.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/TaskNodeStatus.java
@@ -41,7 +41,7 @@ public interface TaskNodeStatus {
   boolean isActive(String neighborId);
 
   /**
-   * Process the msg that was received and update
+   * Process the msg that was received and update.
    * state accordingly
    */
   void processAcknowledgement(GroupCommunicationMessage msg);
@@ -58,7 +58,7 @@ public interface TaskNodeStatus {
   public void expectAckFor(final Type msgType, final String srcId);
 
   /**
-   * Used when the task has failed to clear all
+   * Used when the task has failed to clear all.
    * the state that is associated with this task
    * Also should release the locks held for implementing
    * the convenience wait* methods
@@ -66,7 +66,7 @@ public interface TaskNodeStatus {
   void clearStateAndReleaseLocks();
 
   /**
-   * This should remove state concerning neighboring tasks
+   * This should remove state concerning neighboring tasks.
    * that have failed
    */
   void updateFailureOf(String taskId);
@@ -74,7 +74,7 @@ public interface TaskNodeStatus {
   void waitForTopologySetup();
 
   /**
-   * Called to denote that a UpdateTopology msg will
+   * Called to denote that a UpdateTopology msg will.
    * be sent
    */
   void updatingTopology ();

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/Topology.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/Topology.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/Topology.java
index b393d7f..17ebf87 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/Topology.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/driver/Topology.java
@@ -32,7 +32,7 @@ import org.apache.reef.tang.Configuration;
 public interface Topology {
 
   /**
-   * Get the version of the Task 'taskId'
+   * Get the version of the Task 'taskId'.
    * that belongs to this topology
    *
    * @param taskId
@@ -41,14 +41,14 @@ public interface Topology {
   int getNodeVersion(String taskId);
 
   /**
-   * Get the id of the root task
+   * Get the id of the root task.
    *
    * @return
    */
   String getRootId();
 
   /**
-   * Set task with id 'senderId' as
+   * Set task with id 'senderId' as.
    * the root of this topology
    *
    * @param senderId
@@ -56,7 +56,7 @@ public interface Topology {
   void setRootTask(String senderId);
 
   /**
-   * Add task with id 'taskId' to
+   * Add task with id 'taskId' to.
    * the topology
    *
    * @param taskId
@@ -64,7 +64,7 @@ public interface Topology {
   void addTask(String taskId);
 
   /**
-   * Remove task with id 'taskId' from
+   * Remove task with id 'taskId' from.
    * the topology
    *
    * @param taskId
@@ -72,7 +72,7 @@ public interface Topology {
   void removeTask(String taskId);
 
   /**
-   * Update state on receipt of RunningTask
+   * Update state on receipt of RunningTask.
    * event for task with id 'id'
    *
    * @param id
@@ -80,7 +80,7 @@ public interface Topology {
   void onRunningTask(String id);
 
   /**
-   * Update state on receipt of FailedTask
+   * Update state on receipt of FailedTask.
    * event for task with id 'id'
    *
    * @param id
@@ -88,7 +88,7 @@ public interface Topology {
   void onFailedTask(String id);
 
   /**
-   * Set operator specification of the operator
+   * Set operator specification of the operator.
    * that is the owner of this topology instance
    *
    * @param spec
@@ -96,7 +96,7 @@ public interface Topology {
   void setOperatorSpecification(OperatorSpec spec);
 
   /**
-   * Get the topology portion of the Configuration
+   * Get the topology portion of the Configuration.
    * for the task 'taskId' that belongs to this
    * topology
    *
@@ -106,7 +106,7 @@ public interface Topology {
   Configuration getTaskConfiguration(String taskId);
 
   /**
-   * Update state on receipt of a message
+   * Update state on receipt of a message.
    * from the tasks
    *
    * @param msg

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Broadcast.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Broadcast.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Broadcast.java
index ae007ac..10bc9ce 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Broadcast.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Broadcast.java
@@ -45,7 +45,7 @@ public interface Broadcast {
   }
 
   /**
-   * Receivers or Non-roots
+   * Receivers or Non-roots.
    */
   @DefaultImplementation(BroadcastReceiver.class)
   static interface Receiver<T> extends GroupCommOperator {

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Gather.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Gather.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Gather.java
index a04b02e..538ff71 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Gather.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Gather.java
@@ -43,7 +43,7 @@ public interface Gather {
   }
 
   /**
-   * Receiver or Root
+   * Receiver or Root.
    */
   static interface Receiver<T> extends GroupCommOperator {
 
@@ -55,7 +55,7 @@ public interface Gather {
     List<T> receive() throws InterruptedException, NetworkException;
 
     /**
-     * Receive the elements sent by the senders in specified order
+     * Receive the elements sent by the senders in specified order.
      *
      * @return elements sent by senders as a List in specified order
      */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Reduce.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Reduce.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Reduce.java
index b638348..3ab82cd 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Reduce.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/Reduce.java
@@ -36,7 +36,7 @@ import java.util.List;
 public interface Reduce {
 
   /**
-   * Receiver or Root
+   * Receiver or Root.
    */
   @DefaultImplementation(ReduceReceiver.class)
   static interface Receiver<T> extends GroupCommOperator {
@@ -58,7 +58,7 @@ public interface Reduce {
     T reduce(List<? extends Identifier> order) throws InterruptedException, 
NetworkException;
 
     /**
-     * The reduce function to be applied on the set of received values
+     * The reduce function to be applied on the set of received values.
      *
      * @return {@link ReduceFunction}
      */
@@ -66,7 +66,7 @@ public interface Reduce {
   }
 
   /**
-   * Senders or non roots
+   * Senders or non roots.
    */
   @DefaultImplementation(ReduceSender.class)
   static interface Sender<T> extends GroupCommOperator {
@@ -85,7 +85,7 @@ public interface Reduce {
   }
 
   /**
-   * Interface for a Reduce Function takes in an {@link Iterable} returns an
+   * Interface for a Reduce Function takes in an {@link Iterable} returns an.
    * aggregate value computed from the {@link Iterable}
    */
   static interface ReduceFunction<T> {

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/ReduceScatter.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/ReduceScatter.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/ReduceScatter.java
index 792b655..a2589a9 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/ReduceScatter.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/operators/ReduceScatter.java
@@ -59,7 +59,7 @@ public interface ReduceScatter<T> extends GroupCommOperator {
                 List<? extends Identifier> order) throws InterruptedException, 
NetworkException;
 
   /**
-   * get {@link 
org.apache.reef.io.network.group.api.operators.Reduce.ReduceFunction} configured
+   * get {@link 
org.apache.reef.io.network.group.api.operators.Reduce.ReduceFunction} 
configured.
    *
    * @return {@link 
org.apache.reef.io.network.group.api.operators.Reduce.ReduceFunction}
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommGroupNetworkHandler.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommGroupNetworkHandler.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommGroupNetworkHandler.java
index 45b1839..1f8a5c7 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommGroupNetworkHandler.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommGroupNetworkHandler.java
@@ -25,7 +25,7 @@ import org.apache.reef.tang.annotations.Name;
 import org.apache.reef.wake.EventHandler;
 
 /**
- * The EventHandler that receives the GroupCommunicationMsg
+ * The EventHandler that receives the GroupCommunicationMsg.
  * pertaining to a specific Communication Group
  */
 @DefaultImplementation(value = CommGroupNetworkHandlerImpl.class)

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupClient.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupClient.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupClient.java
index a1370e5..4c9b846 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupClient.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupClient.java
@@ -27,7 +27,7 @@ import org.apache.reef.tang.annotations.DefaultImplementation;
 import org.apache.reef.tang.annotations.Name;
 
 /**
- * The Task side interface of a communication group
+ * The Task side interface of a communication group.
  * Lets one get the operators configured for this task
  * and use them for communication between tasks configured
  * in this communication group
@@ -42,7 +42,7 @@ public interface CommunicationGroupClient {
   Class<? extends Name<String>> getName();
 
   /**
-   * The broadcast sender configured on this communication group
+   * The broadcast sender configured on this communication group.
    * with the given oepratorName
    *
    * @param operatorName
@@ -51,7 +51,7 @@ public interface CommunicationGroupClient {
   Broadcast.Sender getBroadcastSender(Class<? extends Name<String>> 
operatorName);
 
   /**
-   * The broadcast receiver configured on this communication group
+   * The broadcast receiver configured on this communication group.
    * with the given oepratorName
    *
    * @param operatorName
@@ -60,7 +60,7 @@ public interface CommunicationGroupClient {
   Broadcast.Receiver getBroadcastReceiver(Class<? extends Name<String>> 
operatorName);
 
   /**
-   * The reduce receiver configured on this communication group
+   * The reduce receiver configured on this communication group.
    * with the given oepratorName
    *
    * @param operatorName
@@ -69,7 +69,7 @@ public interface CommunicationGroupClient {
   Reduce.Receiver getReduceReceiver(Class<? extends Name<String>> 
operatorName);
 
   /**
-   * The reduce sender configured on this communication group
+   * The reduce sender configured on this communication group.
    * with the given oepratorName
    *
    * @param operatorName

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupServiceClient.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupServiceClient.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupServiceClient.java
index b75af08..002c275 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupServiceClient.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/CommunicationGroupServiceClient.java
@@ -26,7 +26,7 @@ import org.apache.reef.tang.annotations.DefaultImplementation;
 @DefaultImplementation(value = CommunicationGroupClientImpl.class)
 public interface CommunicationGroupServiceClient extends 
CommunicationGroupClient {
   /**
-   * Should not be used by user code
+   * Should not be used by user code.
    * Used for initialization of the
    * communication group
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommClient.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommClient.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommClient.java
index 14c811b..512cc9e 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommClient.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommClient.java
@@ -26,7 +26,7 @@ import org.apache.reef.tang.annotations.Name;
 
 
 /**
- * The task side interface for the Group Communication Service
+ * The task side interface for the Group Communication Service.
  */
 @TaskSide
 @Provided

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommNetworkHandler.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommNetworkHandler.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommNetworkHandler.java
index ecea973..8bb59a9 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommNetworkHandler.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/api/task/GroupCommNetworkHandler.java
@@ -27,7 +27,7 @@ import org.apache.reef.tang.annotations.Name;
 import org.apache.reef.wake.EventHandler;
 
 /**
- * The global EventHandler that receives the GroupCommunicationMsg
+ * The global EventHandler that receives the GroupCommunicationMsg.
  * and routes it to the relevant communication group
  */
 @TaskSide

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/GroupCommunicationMessageCodec.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/GroupCommunicationMessageCodec.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/GroupCommunicationMessageCodec.java
index 8b5225d..331550d 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/GroupCommunicationMessageCodec.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/GroupCommunicationMessageCodec.java
@@ -27,7 +27,7 @@ import javax.inject.Inject;
 import java.io.*;
 
 /**
- * Codec for {@link GroupCommMessage}
+ * Codec for {@link GroupCommMessage}.
  */
 public class GroupCommunicationMessageCodec implements 
StreamingCodec<GroupCommunicationMessage> {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/BroadcastOperatorSpec.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/BroadcastOperatorSpec.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/BroadcastOperatorSpec.java
index 11514b1..bc81aac 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/BroadcastOperatorSpec.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/BroadcastOperatorSpec.java
@@ -24,13 +24,13 @@ import org.apache.reef.io.serialization.Codec;
 
 
 /**
- * The specification for the broadcast operator
+ * The specification for the broadcast operator.
  */
 public class BroadcastOperatorSpec implements OperatorSpec {
   private final String senderId;
 
   /**
-   * Codec to be used to serialize data
+   * Codec to be used to serialize data.
    */
   private final Class<? extends Codec> dataCodecClass;
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/ReduceOperatorSpec.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/ReduceOperatorSpec.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/ReduceOperatorSpec.java
index 386ad13..61759ff 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/ReduceOperatorSpec.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/config/ReduceOperatorSpec.java
@@ -24,19 +24,19 @@ import org.apache.reef.io.network.group.impl.utils.Utils;
 import org.apache.reef.io.serialization.Codec;
 
 /**
- * The specification for the Reduce operator
+ * The specification for the Reduce operator.
  */
 public class ReduceOperatorSpec implements OperatorSpec {
 
   private final String receiverId;
 
   /**
-   * Codec to be used to serialize data
+   * Codec to be used to serialize data.
    */
   private final Class<? extends Codec> dataCodecClass;
 
   /**
-   * The reduce function to be used for operations that do reduction
+   * The reduce function to be used for operations that do reduction.
    */
   public final Class<? extends ReduceFunction> redFuncClass;
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/CtrlMsgSender.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/CtrlMsgSender.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/CtrlMsgSender.java
index 5535511..73f25bf 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/CtrlMsgSender.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/CtrlMsgSender.java
@@ -30,7 +30,7 @@ import org.apache.reef.wake.IdentifierFactory;
 import java.util.logging.Logger;
 
 /**
- * Event handler that receives ctrl msgs and
+ * Event handler that receives ctrl msgs and.
  * dispatched them using network service
  */
 public class CtrlMsgSender implements EventHandler<GroupCommunicationMessage> {

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/FlatTopology.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/FlatTopology.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/FlatTopology.java
index 70670a2..33c196d 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/FlatTopology.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/FlatTopology.java
@@ -54,7 +54,7 @@ import java.util.concurrent.ConcurrentSkipListMap;
 import java.util.logging.Logger;
 
 /**
- * Implements a one level Tree Topology
+ * Implements a one level Tree Topology.
  */
 public class FlatTopology implements Topology {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommDriverImpl.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommDriverImpl.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommDriverImpl.java
index e453640..2ce98a3 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommDriverImpl.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommDriverImpl.java
@@ -74,7 +74,7 @@ import java.util.logging.Logger;
 public class GroupCommDriverImpl implements GroupCommServiceDriver {
   private static final Logger LOG = 
Logger.getLogger(GroupCommDriverImpl.class.getName());
   /**
-   * TANG instance
+   * TANG instance.
    */
   private static final Tang tang = Tang.Factory.getTang();
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommMessageHandler.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommMessageHandler.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommMessageHandler.java
index b466205..a9ab3e9 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommMessageHandler.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommMessageHandler.java
@@ -29,7 +29,7 @@ import java.util.Map;
 import java.util.logging.Logger;
 
 /**
- * The network handler for the group communcation service on the driver side
+ * The network handler for the group communcation service on the driver side.
  */
 public class GroupCommMessageHandler implements 
EventHandler<GroupCommunicationMessage> {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommService.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommService.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommService.java
index 0915fc5..24fdb71 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommService.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/GroupCommService.java
@@ -39,7 +39,7 @@ import javax.inject.Inject;
 import java.util.logging.Logger;
 
 /**
- * The Group Communication Service
+ * The Group Communication Service.
  */
 @Unit
 public class GroupCommService {

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/IndexedMsg.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/IndexedMsg.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/IndexedMsg.java
index b72979c..3973002 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/IndexedMsg.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/IndexedMsg.java
@@ -23,7 +23,7 @@ import org.apache.reef.io.network.group.impl.utils.Utils;
 import org.apache.reef.tang.annotations.Name;
 
 /**
- * Helper class to wrap msg and the operator name in the msg
+ * Helper class to wrap msg and the operator name in the msg.
  */
 public class IndexedMsg {
   private final Class<? extends Name<String>> operName;

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/MsgKey.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/MsgKey.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/MsgKey.java
index 9ac021e..77f053b 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/MsgKey.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/MsgKey.java
@@ -22,7 +22,7 @@ import 
org.apache.reef.io.network.group.impl.GroupCommunicationMessage;
 import org.apache.reef.io.network.proto.ReefNetworkGroupCommProtos;
 
 /**
- * The key object used in map to aggregate msgs from
+ * The key object used in map to aggregate msgs from.
  * all the operators before updating state on driver
  */
 public class MsgKey {

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeImpl.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeImpl.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeImpl.java
index 7483483..eeace55 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeImpl.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeImpl.java
@@ -95,7 +95,7 @@ public class TaskNodeImpl implements TaskNode {
   }
 
   /**
-   * * Methods pertaining to my status change ***
+   * * Methods pertaining to my status change ***.
    */
   @Override
   public void onFailedTask() {
@@ -158,7 +158,7 @@ public class TaskNodeImpl implements TaskNode {
   }
 
   /**
-   * * Methods pertaining to my status change ends ***
+   * * Methods pertaining to my status change ends ***.
    */
 
   @Override
@@ -235,7 +235,7 @@ public class TaskNodeImpl implements TaskNode {
   }
 
   /**
-   * * Methods pertaining to my neighbors status change ends ***
+   * * Methods pertaining to my neighbors status change ends ***.
    */
 
   @Override

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeStatusImpl.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeStatusImpl.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeStatusImpl.java
index 3f904e2..6e8d1e6 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeStatusImpl.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TaskNodeStatusImpl.java
@@ -108,7 +108,7 @@ public class TaskNodeStatusImpl implements TaskNodeStatus {
   }
 
   /**
-   * This needs to happen in line rather than in a stage because we need to 
note
+   * This needs to happen in line rather than in a stage because we need to 
note.
    * the messages we send to the tasks before we start processing msgs from the
    * nodes.(Acks & Topology msgs)
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TreeTopology.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TreeTopology.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TreeTopology.java
index b1695a9..fac8f69 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TreeTopology.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/driver/TreeTopology.java
@@ -56,7 +56,7 @@ import java.util.concurrent.ConcurrentSkipListMap;
 import java.util.logging.Logger;
 
 /**
- * Implements a tree topology with the specified Fan Out
+ * Implements a tree topology with the specified Fan Out.
  */
 public class TreeTopology implements Topology {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/task/OperatorTopologyImpl.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/task/OperatorTopologyImpl.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/task/OperatorTopologyImpl.java
index f46031b..028fe98 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/task/OperatorTopologyImpl.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/task/OperatorTopologyImpl.java
@@ -233,7 +233,7 @@ public class OperatorTopologyImpl implements 
OperatorTopology {
   }
 
   /**
-   * Only refreshes the effective topology with deletion msgs from
+   * Only refreshes the effective topology with deletion msgs from.
    * deletionDeltas queue
    *
    * @throws ParentDeadException
@@ -267,7 +267,7 @@ public class OperatorTopologyImpl implements 
OperatorTopology {
   }
 
   /**
-   * Blocking method that waits till the base topology is updated Unblocks when
+   * Blocking method that waits till the base topology is updated Unblocks 
when.
    * we receive a TopologySetup msg from driver
    * <p/>
    * Will also update the effective topology when the base topology is updated

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/ConcurrentCountingMap.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/ConcurrentCountingMap.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/ConcurrentCountingMap.java
index 7dc651b..cc04888 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/ConcurrentCountingMap.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/ConcurrentCountingMap.java
@@ -26,7 +26,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Utility map class that wraps a CountingMap
+ * Utility map class that wraps a CountingMap.
  * in a ConcurrentMap
  * Equivalent to Map<K,Map<V,Integer>>
  */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/CountingMap.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/CountingMap.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/CountingMap.java
index 58c3f5c..cfb724a 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/CountingMap.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/CountingMap.java
@@ -24,7 +24,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Utility class to provide a map that allows to
+ * Utility class to provide a map that allows to.
  * add multiple keys and automatically
  * incrementing the count on each add
  * decrementing the count on each remove

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/SetMap.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/SetMap.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/SetMap.java
index 6a4b424..020584f 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/SetMap.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/group/impl/utils/SetMap.java
@@ -23,7 +23,7 @@ import org.apache.reef.io.network.group.impl.driver.MsgKey;
 import java.util.*;
 
 /**
- * Map from K to Set<V>
+ * Map from K to Set<V>.
  */
 public class SetMap<K, V> {
   private final Map<K, Set<V>> map = new HashMap<>();

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSConnection.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSConnection.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSConnection.java
index 43d3573..149f45b 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSConnection.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSConnection.java
@@ -33,7 +33,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * A connection from the network service
+ * A connection from the network service.
  */
 class NSConnection<T> implements Connection<T> {
 
@@ -49,7 +49,7 @@ class NSConnection<T> implements Connection<T> {
   private Link<NSMessage<T>> link;
 
   /**
-   * Constructs a connection
+   * Constructs a connection.
    *
    * @param srcId    a source identifier
    * @param destId   a destination identifier
@@ -95,7 +95,7 @@ class NSConnection<T> implements Connection<T> {
   }
 
   /**
-   * Writes an object to the connection
+   * Writes an object to the connection.
    *
    * @param obj an object of type T
    * @throws a network exception
@@ -106,7 +106,7 @@ class NSConnection<T> implements Connection<T> {
   }
 
   /**
-   * Closes the connection and unregisters it from the service
+   * Closes the connection and unregisters it from the service.
    */
   @Override
   public void close() throws NetworkException {
@@ -115,7 +115,7 @@ class NSConnection<T> implements Connection<T> {
 }
 
 /**
- * No-op link listener
+ * No-op link listener.
  *
  * @param <T>
  */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessage.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessage.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessage.java
index 063b9e3..28c41a4 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessage.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessage.java
@@ -25,7 +25,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 /**
- * Network service message that implements the Message interface
+ * Network service message that implements the Message interface.
  *
  * @param <T> type
  */
@@ -35,7 +35,7 @@ public class NSMessage<T> implements Message<T> {
   private final List<T> data;
 
   /**
-   * Constructs a network service message
+   * Constructs a network service message.
    *
    * @param srcId  a source identifier
    * @param destId a destination identifier
@@ -49,7 +49,7 @@ public class NSMessage<T> implements Message<T> {
   }
 
   /**
-   * Constructs a network service message
+   * Constructs a network service message.
    *
    * @param srcId  a source identifier
    * @param destId a destination identifier
@@ -62,7 +62,7 @@ public class NSMessage<T> implements Message<T> {
   }
 
   /**
-   * Gets a source identifier
+   * Gets a source identifier.
    *
    * @return an identifier
    */
@@ -71,7 +71,7 @@ public class NSMessage<T> implements Message<T> {
   }
 
   /**
-   * Gets a destination identifier
+   * Gets a destination identifier.
    *
    * @return an identifier
    */
@@ -80,7 +80,7 @@ public class NSMessage<T> implements Message<T> {
   }
 
   /**
-   * Gets data
+   * Gets data.
    *
    * @return data
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessageCodec.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessageCodec.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessageCodec.java
index f22f970..40d0b24 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessageCodec.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NSMessageCodec.java
@@ -32,7 +32,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 /**
- * Network service message codec
+ * Network service message codec.
  *
  * @param <T> type
  */
@@ -43,7 +43,7 @@ public class NSMessageCodec<T> implements Codec<NSMessage<T>> 
{
   private final boolean isStreamingCodec;
 
   /**
-   * Constructs a network service message codec
+   * Constructs a network service message codec.
    *
    * @param codec   a codec
    * @param factory an identifier factory
@@ -55,7 +55,7 @@ public class NSMessageCodec<T> implements Codec<NSMessage<T>> 
{
   }
 
   /**
-   * Encodes a network service message to bytes
+   * Encodes a network service message to bytes.
    *
    * @param obj a message
    * @return bytes
@@ -91,7 +91,7 @@ public class NSMessageCodec<T> implements Codec<NSMessage<T>> 
{
   }
 
   /**
-   * Decodes a network service message from bytes
+   * Decodes a network service message from bytes.
    *
    * @param buf bytes
    * @return a message

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NetworkService.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NetworkService.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NetworkService.java
index 3709f43..d41b538 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NetworkService.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/NetworkService.java
@@ -50,7 +50,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Network service for Task
+ * Network service for Task.
  */
 public final class NetworkService<T> implements Stage, ConnectionFactory<T> {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/StreamingCodec.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/StreamingCodec.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/StreamingCodec.java
index ac669af..56a33c4 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/StreamingCodec.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/impl/StreamingCodec.java
@@ -24,7 +24,7 @@ import java.io.DataInputStream;
 import java.io.DataOutputStream;
 
 /**
- * A codec that can make serialization more efficient when an object has to be
+ * A codec that can make serialization more efficient when an object has to be.
  * codec'ed through a chain of codecs
  */
 public interface StreamingCodec<T> extends Codec<T> {

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameAssignmentTuple.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameAssignmentTuple.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameAssignmentTuple.java
index c7792fd..649078b 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameAssignmentTuple.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameAssignmentTuple.java
@@ -24,7 +24,7 @@ import org.apache.reef.wake.Identifier;
 import java.net.InetSocketAddress;
 
 /**
- * An implementation of the NameAssignment interface
+ * An implementation of the NameAssignment interface.
  */
 public class NameAssignmentTuple implements NameAssignment {
 
@@ -32,7 +32,7 @@ public class NameAssignmentTuple implements NameAssignment {
   private final InetSocketAddress addr;
 
   /**
-   * Constructs a name assignment tuple
+   * Constructs a name assignment tuple.
    *
    * @param id   an identifier
    * @param addr an Internet socket address
@@ -43,7 +43,7 @@ public class NameAssignmentTuple implements NameAssignment {
   }
 
   /**
-   * Gets an identifier
+   * Gets an identifier.
    *
    * @return an identifier
    */
@@ -53,7 +53,7 @@ public class NameAssignmentTuple implements NameAssignment {
   }
 
   /**
-   * Gets an address
+   * Gets an address.
    *
    * @return an Internet socket address
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameCache.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameCache.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameCache.java
index e32b144..4eededa 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameCache.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameCache.java
@@ -28,14 +28,14 @@ import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 
 /**
- * Naming cache implementation
+ * Naming cache implementation.
  */
 public class NameCache implements Cache<Identifier, InetSocketAddress> {
 
   private final Cache<Identifier, InetSocketAddress> cache;
 
   /**
-   * Constructs a naming cache
+   * Constructs a naming cache.
    *
    * @param timeout a cache entry timeout after write
    */
@@ -44,7 +44,7 @@ public class NameCache implements Cache<Identifier, 
InetSocketAddress> {
   }
 
   /**
-   * Gets an address for an identifier
+   * Gets an address for an identifier.
    *
    * @param key          an identifier
    * @param valueFetcher a callable to load a value for the corresponding 
identifier
@@ -58,7 +58,7 @@ public class NameCache implements Cache<Identifier, 
InetSocketAddress> {
   }
 
   /**
-   * Invalidates the entry for an identifier
+   * Invalidates the entry for an identifier.
    *
    * @param key an identifier
    */

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameClient.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameClient.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameClient.java
index 3efef65..bdeb7db 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameClient.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameClient.java
@@ -45,7 +45,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Naming client
+ * Naming client.
  */
 public class NameClient implements Stage, Naming {
   private static final Logger LOG = 
Logger.getLogger(NameClient.class.getName());
@@ -66,7 +66,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Constructs a naming client
+   * Constructs a naming client.
    *
    * @param serverAddr a server address
    * @param serverPort a server port number
@@ -102,7 +102,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Constructs a naming client
+   * Constructs a naming client.
    *
    * @param serverAddr a server address
    * @param serverPort a server port number
@@ -123,7 +123,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Constructs a naming client
+   * Constructs a naming client.
    *
    * @param serverAddr a server address
    * @param serverPort a server port number
@@ -159,7 +159,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Registers an (identifier, address) mapping
+   * Registers an (identifier, address) mapping.
    *
    * @param id   an identifier
    * @param addr an Internet socket address
@@ -172,7 +172,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Unregisters an identifier
+   * Unregisters an identifier.
    *
    * @param id an identifier
    */
@@ -182,7 +182,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Finds an address for an identifier
+   * Finds an address for an identifier.
    *
    * @param id an identifier
    * @return an Internet socket address
@@ -193,7 +193,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Retrieves an address for an identifier remotely
+   * Retrieves an address for an identifier remotely.
    *
    * @param id an identifier
    * @return an Internet socket address
@@ -204,7 +204,7 @@ public class NameClient implements Stage, Naming {
   }
 
   /**
-   * Closes resources
+   * Closes resources.
    */
   @Override
   public void close() throws Exception {
@@ -224,7 +224,7 @@ public class NameClient implements Stage, Naming {
 }
 
 /**
- * Naming client transport event handler
+ * Naming client transport event handler.
  */
 class NamingClientEventHandler implements EventHandler<TransportEvent> {
 
@@ -247,7 +247,7 @@ class NamingClientEventHandler implements 
EventHandler<TransportEvent> {
 }
 
 /**
- * Naming response message handler
+ * Naming response message handler.
  */
 class NamingResponseHandler implements EventHandler<NamingMessage> {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameLookupClient.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameLookupClient.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameLookupClient.java
index fdef6f0..d4e38da 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameLookupClient.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameLookupClient.java
@@ -54,7 +54,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Naming lookup client
+ * Naming lookup client.
  */
 public class NameLookupClient implements Stage, NamingLookup {
 
@@ -69,7 +69,7 @@ public class NameLookupClient implements Stage, NamingLookup {
   private final int retryTimeout;
 
   /**
-   * Constructs a naming lookup client
+   * Constructs a naming lookup client.
    *
    * @param serverAddr a server address
    * @param serverPort a server port number
@@ -87,7 +87,7 @@ public class NameLookupClient implements Stage, NamingLookup {
   }
 
   /**
-   * Constructs a naming lookup client
+   * Constructs a naming lookup client.
    *
    * @param serverAddr a server address
    * @param serverPort a server port number
@@ -123,7 +123,7 @@ public class NameLookupClient implements Stage, 
NamingLookup {
   }
 
   /**
-   * Constructs a naming lookup client
+   * Constructs a naming lookup client.
    *
    * @param serverAddr a server address
    * @param serverPort a server port number
@@ -144,7 +144,7 @@ public class NameLookupClient implements Stage, 
NamingLookup {
   }
 
   /**
-   * Constructs a naming lookup client
+   * Constructs a naming lookup client.
    *
    * @param serverAddr a server address
    * @param serverPort a server port number
@@ -195,7 +195,7 @@ public class NameLookupClient implements Stage, 
NamingLookup {
 
 
   /**
-   * Finds an address for an identifier
+   * Finds an address for an identifier.
    *
    * @param id an identifier
    * @return an Internet socket address
@@ -233,7 +233,7 @@ public class NameLookupClient implements Stage, 
NamingLookup {
   }
 
   /**
-   * Retrieves an address for an identifier remotely
+   * Retrieves an address for an identifier remotely.
    *
    * @param id an identifier
    * @return an Internet socket address
@@ -273,7 +273,7 @@ public class NameLookupClient implements Stage, 
NamingLookup {
   }
 
   /**
-   * Closes resources
+   * Closes resources.
    */
   @Override
   public void close() throws Exception {
@@ -291,7 +291,7 @@ public class NameLookupClient implements Stage, 
NamingLookup {
 }
 
 /**
- * Naming lookup client transport event handler
+ * Naming lookup client transport event handler.
  */
 class NamingLookupClientHandler implements EventHandler<TransportEvent> {
 
@@ -311,7 +311,7 @@ class NamingLookupClientHandler implements 
EventHandler<TransportEvent> {
 }
 
 /**
- * Naming lookup response handler
+ * Naming lookup response handler.
  */
 class NamingLookupResponseHandler implements 
EventHandler<NamingLookupResponse> {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameRegistryClient.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameRegistryClient.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameRegistryClient.java
index 24056dd..a22820b 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameRegistryClient.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameRegistryClient.java
@@ -52,7 +52,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Naming registry client
+ * Naming registry client.
  */
 public class NameRegistryClient implements Stage, NamingRegistry {
 
@@ -65,7 +65,7 @@ public class NameRegistryClient implements Stage, 
NamingRegistry {
   private final long timeout;
 
   /**
-   * Constructs a naming registry client
+   * Constructs a naming registry client.
    *
    * @param serverAddr a name server address
    * @param serverPort a name server port
@@ -77,7 +77,7 @@ public class NameRegistryClient implements Stage, 
NamingRegistry {
   }
 
   /**
-   * Constructs a naming registry client
+   * Constructs a naming registry client.
    *
    * @param serverAddr a name server address
    * @param serverPort a name server port
@@ -132,7 +132,7 @@ public class NameRegistryClient implements Stage, 
NamingRegistry {
   }
 
   /**
-   * Registers an (identifier, address) mapping
+   * Registers an (identifier, address) mapping.
    *
    * @param id   an identifier
    * @param addr an Internet socket address
@@ -164,7 +164,7 @@ public class NameRegistryClient implements Stage, 
NamingRegistry {
   }
 
   /**
-   * Unregisters an identifier
+   * Unregisters an identifier.
    *
    * @param id an identifier
    */
@@ -176,7 +176,7 @@ public class NameRegistryClient implements Stage, 
NamingRegistry {
   }
 
   /**
-   * Closes resources
+   * Closes resources.
    */
   @Override
   public void close() throws Exception {
@@ -186,7 +186,7 @@ public class NameRegistryClient implements Stage, 
NamingRegistry {
 }
 
 /**
- * Naming registry client transport event handler
+ * Naming registry client transport event handler.
  */
 class NamingRegistryClientHandler implements EventHandler<TransportEvent> {
   private static final Logger LOG = 
Logger.getLogger(NamingRegistryClientHandler.class.getName());
@@ -207,7 +207,7 @@ class NamingRegistryClientHandler implements 
EventHandler<TransportEvent> {
 }
 
 /**
- * Naming register response handler
+ * Naming register response handler.
  */
 class NamingRegistryResponseHandler implements 
EventHandler<NamingRegisterResponse> {
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServer.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServer.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServer.java
index 0737286..312a1b9 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServer.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServer.java
@@ -27,18 +27,18 @@ import java.net.InetSocketAddress;
 import java.util.List;
 
 /**
- * Naming server interface
+ * Naming server interface.
  */
 public interface NameServer extends Stage {
 
   /**
-   * get port number
+   * get port number.
    * @return
    */
   public int getPort();
 
   /**
-   * Registers an (identifier, address) mapping locally
+   * Registers an (identifier, address) mapping locally.
    *
    * @param id   an identifier
    * @param addr an Internet socket address
@@ -46,14 +46,14 @@ public interface NameServer extends Stage {
   public void register(final Identifier id, final InetSocketAddress addr);
 
   /**
-   * Unregisters an identifier locally
+   * Unregisters an identifier locally.
    *
    * @param id an identifier
    */
   public void unregister(final Identifier id);
 
   /**
-   * Finds an address for an identifier locally
+   * Finds an address for an identifier locally.
    *
    * @param id an identifier
    * @return an Internet socket address
@@ -61,10 +61,10 @@ public interface NameServer extends Stage {
   public InetSocketAddress lookup(final Identifier id);
 
   /**
-   * Finds addresses for identifiers locally
+   * Finds addresses for identifiers locally.
    *
    * @param identifiers an Iterable of identifiers
    * @return a list of name assignments
    */
   public List<NameAssignment> lookup(final Iterable<Identifier> identifiers);
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/eeafba31/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServerConfiguration.java
----------------------------------------------------------------------
diff --git 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServerConfiguration.java
 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServerConfiguration.java
index 1912686..5215a04 100644
--- 
a/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServerConfiguration.java
+++ 
b/lang/java/reef-io/src/main/java/org/apache/reef/io/network/naming/NameServerConfiguration.java
@@ -25,20 +25,20 @@ import org.apache.reef.tang.formats.OptionalParameter;
 import org.apache.reef.wake.IdentifierFactory;
 
 /**
- * Configuration Module Builder for NameServer
+ * Configuration Module Builder for NameServer.
  */
 public final class NameServerConfiguration extends ConfigurationModuleBuilder {
 
   /**
-   * The port used by name server
+   * The port used by name server.
    */
   public static final OptionalParameter<Integer> NAME_SERVICE_PORT = new 
OptionalParameter<>();
   /**
-   * DNS hostname running the name service
+   * DNS hostname running the name service.
    */
   public static final OptionalParameter<String> NAME_SERVER_HOSTNAME = new 
OptionalParameter<>();
   /**
-   * Identifier factory for the name service
+   * Identifier factory for the name service.
    */
   public static final OptionalParameter<IdentifierFactory> 
NAME_SERVER_IDENTIFIER_FACTORY = new OptionalParameter<>();
 

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