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Posted to commits@reef.apache.org by ch...@apache.org on 2015/07/28 07:15:58 UTC

[10/12] incubator-reef git commit: [REEF-513] Add FinalParameters to checkstyle

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/MergingIterator.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/MergingIterator.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/MergingIterator.java
index 1cc685a..a0a80f2 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/MergingIterator.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/MergingIterator.java
@@ -28,12 +28,12 @@ import java.util.PriorityQueue;
 public class MergingIterator<T> implements Iterator<T> {
   private final PriorityQueue<Tuple<T, Iterator<T>>> heap;
 
-  public MergingIterator(final Comparator<T> c, Iterator<T>[] its) {
+  public MergingIterator(final Comparator<T> c, final Iterator<T>[] its) {
     this.heap = new PriorityQueue<Tuple<T, Iterator<T>>>(11,
         new TupleKeyComparator<T, Iterator<T>>(c));
 
-    for (Iterator<T> it : its) {
-      T b = it.hasNext() ? it.next() : null;
+    for (final Iterator<T> it : its) {
+      final T b = it.hasNext() ? it.next() : null;
       if (b != null) {
         heap.add(new Tuple<>(b, it));
       }
@@ -47,7 +47,7 @@ public class MergingIterator<T> implements Iterator<T> {
 
   @Override
   public T next() {
-    Tuple<T, Iterator<T>> ret = heap.remove();
+    final Tuple<T, Iterator<T>> ret = heap.remove();
     if (ret.getValue().hasNext()) {
       heap.add(new Tuple<>(ret.getValue().next(), ret.getValue()));
     }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalScratchSpace.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalScratchSpace.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalScratchSpace.java
index feee1e9..a3ea45f 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalScratchSpace.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalScratchSpace.java
@@ -35,13 +35,13 @@ public class LocalScratchSpace implements ScratchSpace {
    */
   private long quota;
 
-  public LocalScratchSpace(String jobName, String evaluatorName) {
+  public LocalScratchSpace(final String jobName, final String evaluatorName) {
     this.jobName = jobName;
     this.evaluatorName = evaluatorName;
     this.quota = 0;
   }
 
-  public LocalScratchSpace(String jobName, String evaluatorName, long quota) {
+  public LocalScratchSpace(final String jobName, final String evaluatorName, final long quota) {
     this.jobName = jobName;
     this.evaluatorName = evaluatorName;
     this.quota = quota;
@@ -52,7 +52,7 @@ public class LocalScratchSpace implements ScratchSpace {
     try {
       ret = File.createTempFile("reef-" + jobName + "-" + evaluatorName,
           "tmp");
-    } catch (IOException e) {
+    } catch (final IOException e) {
       throw new RuntimeException(e);
     }
     tempFiles.add(ret);
@@ -67,7 +67,7 @@ public class LocalScratchSpace implements ScratchSpace {
   @Override
   public long usedSpace() {
     long ret = 0;
-    for (File f : tempFiles) {
+    for (final File f : tempFiles) {
       // TODO: Error handling...
       ret += f.length();
     }
@@ -78,7 +78,7 @@ public class LocalScratchSpace implements ScratchSpace {
   public void delete() {
     // TODO: Error handling. Files.delete() would give us an exception. We
     // should pass a set of Exceptions into a ReefRuntimeException.
-    for (File f : tempFiles) {
+    for (final File f : tempFiles) {
       f.delete();
     }
     tempFiles.clear();

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalStorageService.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalStorageService.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalStorageService.java
index 3dc55c3..f51b657 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalStorageService.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/LocalStorageService.java
@@ -29,7 +29,7 @@ public class LocalStorageService implements StorageService {
 
   private final LocalScratchSpace scratchSpace;
 
-  public LocalStorageService(String jobName, String evaluatorName) {
+  public LocalStorageService(final String jobName, final String evaluatorName) {
     this.jobName = jobName;
     this.evaluatorName = evaluatorName;
     this.scratchSpace = new LocalScratchSpace(jobName, evaluatorName);

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/SerializerFileSpool.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/SerializerFileSpool.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/SerializerFileSpool.java
index aa46aa7..fd77c36 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/SerializerFileSpool.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/local/SerializerFileSpool.java
@@ -47,7 +47,7 @@ public final class SerializerFileSpool<T> implements Spool<T> {
                              final Serializer<T, OutputStream> out, final Deserializer<T, InputStream> in)
       throws ServiceException {
     this.file = service.getScratchSpace().newFile();
-    Accumulable<T> accumulable;
+    final Accumulable<T> accumulable;
     try {
       accumulable = out.create(new BufferedOutputStream(new FileOutputStream(
           file)));

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/CodecRamMap.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/CodecRamMap.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/CodecRamMap.java
index d93750e..b4885a5 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/CodecRamMap.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/CodecRamMap.java
@@ -36,7 +36,7 @@ public class CodecRamMap<T> implements ExternalMap<T> {
   private final ConcurrentSkipListMap<CharSequence, byte[]> map;
 
   @Inject
-  public CodecRamMap(RamStorageService ramStore,
+  public CodecRamMap(final RamStorageService ramStore,
                      @Parameter(RamMapCodec.class) final Codec<T> c) {
     this.c = c;
     this.map = new ConcurrentSkipListMap<CharSequence, byte[]>();
@@ -54,7 +54,7 @@ public class CodecRamMap<T> implements ExternalMap<T> {
   }
 
   @Override
-  public T put(final CharSequence key, T value) {
+  public T put(final CharSequence key, final T value) {
     final byte[] ret = map.put(key, c.encode(value));
     return ret != null ? c.decode(ret) : null;
   }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamMap.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamMap.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamMap.java
index 5c3e14c..5636c9e 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamMap.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamMap.java
@@ -37,36 +37,36 @@ public class RamMap<T> implements ExternalMap<T> {
   private final ConcurrentSkipListMap<CharSequence, T> map = new ConcurrentSkipListMap<CharSequence, T>();
 
   @Inject
-  public RamMap(RamStorageService ramStore) {
+  public RamMap(final RamStorageService ramStore) {
   }
 
   @Override
-  public boolean containsKey(CharSequence key) {
+  public boolean containsKey(final CharSequence key) {
     return map.containsKey(key);
   }
 
   @Override
-  public T get(CharSequence key) {
+  public T get(final CharSequence key) {
     return map.get(key);
   }
 
   @Override
-  public T put(CharSequence key, T value) {
+  public T put(final CharSequence key, final T value) {
     return map.put(key, value);
   }
 
   @Override
-  public T remove(CharSequence key) {
+  public T remove(final CharSequence key) {
     return map.remove(key);
   }
 
   @Override
-  public void putAll(Map<? extends CharSequence, ? extends T> m) {
+  public void putAll(final Map<? extends CharSequence, ? extends T> m) {
     map.putAll(m);
   }
 
   @Override
-  public Iterable<Entry<CharSequence, T>> getAll(Set<? extends CharSequence> keys) {
+  public Iterable<Entry<CharSequence, T>> getAll(final Set<? extends CharSequence> keys) {
     return new GetAllIterable<>(keys, this);
   }
 }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamSpool.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamSpool.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamSpool.java
index 8b7f9eb..1b82739 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamSpool.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/RamSpool.java
@@ -39,7 +39,7 @@ public final class RamSpool<T> implements Spool<T> {
   private boolean canGetAccumulator = true;
 
   @Inject
-  public RamSpool(RamStorageService ramStore) {
+  public RamSpool(final RamStorageService ramStore) {
   }
 
   @Override
@@ -56,7 +56,7 @@ public final class RamSpool<T> implements Spool<T> {
     canGetAccumulator = false;
     return new Accumulator<T>() {
       @Override
-      public void add(T datum) {
+      public void add(final T datum) {
         if (!canAppend) {
           throw new ConcurrentModificationException("Attempt to append after creating iterator!");
         }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/SortingRamSpool.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/SortingRamSpool.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/SortingRamSpool.java
index 1ba55f4..b8c4711 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/SortingRamSpool.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/ram/SortingRamSpool.java
@@ -31,7 +31,7 @@ public class SortingRamSpool<T> implements Spool<T> {
   private boolean ready = false;
   private Accumulator<T> acc = new Accumulator<T>() {
     @Override
-    public void add(T datum) throws StorageException {
+    public void add(final T datum) throws StorageException {
       if (ready) {
         throw new IllegalStateException("add called after close!");
       }
@@ -67,7 +67,7 @@ public class SortingRamSpool<T> implements Spool<T> {
     heap = new PriorityQueue<>();
   }
 
-  public SortingRamSpool(Comparator<T> c) {
+  public SortingRamSpool(final Comparator<T> c) {
     heap = new PriorityQueue<>(11, c);
   }
 
@@ -76,14 +76,14 @@ public class SortingRamSpool<T> implements Spool<T> {
     if (!ready) {
       throw new IllegalStateException("Cannot call iterator() while accumulator is still open!");
     }
-    Iterator<T> ret = it;
+    final Iterator<T> ret = it;
     it = null;
     return ret;
   }
 
   @Override
   public Accumulator<T> accumulator() throws StorageException {
-    Accumulator<T> ret = acc;
+    final Accumulator<T> ret = acc;
     acc = null;
     return ret;
   }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/GetAllIterable.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/GetAllIterable.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/GetAllIterable.java
index 8be1b37..a8d1665 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/GetAllIterable.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/GetAllIterable.java
@@ -30,7 +30,7 @@ public class GetAllIterable<T> implements
   private final Set<? extends CharSequence> keys;
   private final ExternalMap<T> map;
 
-  public GetAllIterable(Set<? extends CharSequence> keys, ExternalMap<T> map) {
+  public GetAllIterable(final Set<? extends CharSequence> keys, final ExternalMap<T> map) {
     this.keys = keys;
     this.map = map;
   }
@@ -44,7 +44,7 @@ public class GetAllIterable<T> implements
 
       private CharSequence findNextKey() {
         while (k.hasNext()) {
-          CharSequence next = k.next();
+          final CharSequence next = k.next();
           if (map.containsKey(next)) {
             return next;
           }
@@ -80,7 +80,7 @@ public class GetAllIterable<T> implements
           }
 
           @Override
-          public T setValue(T v) {
+          public T setValue(final T v) {
             throw new UnsupportedOperationException(
                 "No support for mutating values via iterator");
           }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerCodec.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerCodec.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerCodec.java
index 65d760d..94b496a 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerCodec.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerCodec.java
@@ -23,12 +23,12 @@ import org.apache.reef.io.serialization.Codec;
 public class IntegerCodec implements Codec<Integer> {
 
   @Override
-  public byte[] encode(Integer obj) {
+  public byte[] encode(final Integer obj) {
     return Integer.toString(obj).getBytes();
   }
 
   @Override
-  public Integer decode(byte[] buf) {
+  public Integer decode(final byte[] buf) {
     return Integer.decode(new String(buf));
   }
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerDeserializer.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerDeserializer.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerDeserializer.java
index 1d81111..a404bed 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerDeserializer.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerDeserializer.java
@@ -29,7 +29,7 @@ import java.util.Iterator;
 public class IntegerDeserializer implements
     Deserializer<Integer, InputStream> {
   @Override
-  public Iterable<Integer> create(InputStream arg) {
+  public Iterable<Integer> create(final InputStream arg) {
     final DataInputStream dis = new DataInputStream(arg);
     return new Iterable<Integer>() {
 
@@ -46,7 +46,7 @@ public class IntegerDeserializer implements
           public Integer next() {
             try {
               return dis.readInt();
-            } catch (IOException e) {
+            } catch (final IOException e) {
               throw new ServiceRuntimeException(e);
             }
           }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerSerializer.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerSerializer.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerSerializer.java
index 4b27f7c..44b4eff 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerSerializer.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/IntegerSerializer.java
@@ -30,7 +30,7 @@ import java.io.OutputStream;
 public class IntegerSerializer implements
     Serializer<Integer, OutputStream> {
   @Override
-  public Accumulable<Integer> create(OutputStream arg) {
+  public Accumulable<Integer> create(final OutputStream arg) {
     final DataOutputStream dos = new DataOutputStream(arg);
     return new Accumulable<Integer>() {
 
@@ -38,10 +38,10 @@ public class IntegerSerializer implements
       public Accumulator<Integer> accumulator() throws ServiceException {
         return new Accumulator<Integer>() {
           @Override
-          public void add(Integer datum) throws ServiceException {
+          public void add(final Integer datum) throws ServiceException {
             try {
               dos.writeInt(datum);
-            } catch (IOException e) {
+            } catch (final IOException e) {
               throw new ServiceException(e);
             }
           }
@@ -50,7 +50,7 @@ public class IntegerSerializer implements
           public void close() throws ServiceException {
             try {
               dos.close();
-            } catch (IOException e) {
+            } catch (final IOException e) {
               throw new ServiceException(e);
             }
           }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringDeserializer.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringDeserializer.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringDeserializer.java
index 5f0c31a..1016016 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringDeserializer.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringDeserializer.java
@@ -29,7 +29,7 @@ import java.util.Iterator;
 public class StringDeserializer implements
     Deserializer<String, InputStream> {
   @Override
-  public Iterable<String> create(InputStream arg) {
+  public Iterable<String> create(final InputStream arg) {
     final DataInputStream dis = new DataInputStream(arg);
     return new Iterable<String>() {
 
@@ -47,10 +47,10 @@ public class StringDeserializer implements
             int len = 0;
             try {
               len = dis.readInt();
-              byte[] b = new byte[len];
+              final byte[] b = new byte[len];
               dis.readFully(b);
               return new String(b);
-            } catch (IOException e) {
+            } catch (final IOException e) {
               throw new ServiceRuntimeException(e);
             }
           }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringSerializer.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringSerializer.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringSerializer.java
index da06486..cc61ea6 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringSerializer.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/StringSerializer.java
@@ -30,7 +30,7 @@ import java.io.OutputStream;
 public class StringSerializer implements
     Serializer<String, OutputStream> {
   @Override
-  public Accumulable<String> create(OutputStream arg) {
+  public Accumulable<String> create(final OutputStream arg) {
     final DataOutputStream dos = new DataOutputStream(arg);
     return new Accumulable<String>() {
 
@@ -39,12 +39,12 @@ public class StringSerializer implements
         return new Accumulator<String>() {
 
           @Override
-          public void add(String datum) throws ServiceException {
-            byte[] b = datum.getBytes();
+          public void add(final String datum) throws ServiceException {
+            final byte[] b = datum.getBytes();
             try {
               dos.writeInt(b.length);
               dos.write(b);
-            } catch (IOException e) {
+            } catch (final IOException e) {
               throw new ServiceException(e);
             }
 
@@ -54,7 +54,7 @@ public class StringSerializer implements
           public void close() throws ServiceException {
             try {
               dos.close();
-            } catch (IOException e) {
+            } catch (final IOException e) {
               throw new ServiceException(e);
             }
           }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/TupleKeyComparator.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/TupleKeyComparator.java b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/TupleKeyComparator.java
index 8951e4a..13c2b15 100644
--- a/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/TupleKeyComparator.java
+++ b/lang/java/reef-io/src/main/java/org/apache/reef/io/storage/util/TupleKeyComparator.java
@@ -26,12 +26,12 @@ public final class TupleKeyComparator<K, V> implements
     Comparator<Tuple<K, V>> {
   private final Comparator<K> c;
 
-  public TupleKeyComparator(Comparator<K> c) {
+  public TupleKeyComparator(final Comparator<K> c) {
     this.c = c;
   }
 
   @Override
-  public int compare(Tuple<K, V> o1, Tuple<K, V> o2) {
+  public int compare(final Tuple<K, V> o1, final Tuple<K, V> o2) {
     return c.compare(o1.getKey(), o2.getKey());
   }
 }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NameClientTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NameClientTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NameClientTest.java
index d4afd3e..a0b7997 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NameClientTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NameClientTest.java
@@ -50,11 +50,11 @@ public class NameClientTest {
   static int retryCount, retryTimeout;
 
   static {
-    Tang tang = Tang.Factory.getTang();
+    final Tang tang = Tang.Factory.getTang();
     try {
       retryCount = tang.newInjector().getNamedInstance(NameResolverRetryCount.class);
       retryTimeout = tang.newInjector().getNamedInstance(NameResolverRetryTimeout.class);
-    } catch (InjectionException e1) {
+    } catch (final InjectionException e1) {
       throw new RuntimeException("Exception while trying to find default values for retryCount & Timeout", e1);
     }
   }
@@ -87,7 +87,7 @@ public class NameClientTest {
     injector.bindVolatileInstance(LocalAddressProvider.class, this.localAddressProvider);
 
     try (final NameServer server = injector.getInstance(NameServer.class)) {
-      int serverPort = server.getPort();
+      final int serverPort = server.getPort();
       final Configuration nameResolverConf = NameResolverConfiguration.CONF
           .set(NameResolverConfiguration.NAME_SERVER_HOSTNAME, localAddress)
           .set(NameResolverConfiguration.NAME_SERVICE_PORT, serverPort)
@@ -122,7 +122,7 @@ public class NameClientTest {
     injector.bindVolatileInstance(LocalAddressProvider.class, this.localAddressProvider);
 
     try (final NameServer server = injector.getInstance(NameServer.class)) {
-      int serverPort = server.getPort();
+      final int serverPort = server.getPort();
       final Configuration nameResolverConf = NameResolverConfiguration.CONF
           .set(NameResolverConfiguration.NAME_SERVER_HOSTNAME, localAddress)
           .set(NameResolverConfiguration.NAME_SERVICE_PORT, serverPort)
@@ -147,7 +147,7 @@ public class NameClientTest {
           //resulting in NamingException and the test passes
           addr = client.lookup(id);
           Assert.assertNull("client.lookup(id)", addr);
-        } catch (Exception e) {
+        } catch (final Exception e) {
           if (e instanceof ExecutionException) {
             Assert.assertTrue("Execution Exception cause is instanceof NamingException",
                 e.getCause() instanceof NamingException);

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NamingTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NamingTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NamingTest.java
index 6137155..472dde3 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NamingTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NamingTest.java
@@ -110,9 +110,9 @@ public class NamingTest {
         final Identifier id2 = this.factory.getNewInstance("task2");
 
         final Map<Identifier, InetSocketAddress> respMap = new HashMap<Identifier, InetSocketAddress>();
-        InetSocketAddress addr1 = client.lookup(id1);
+        final InetSocketAddress addr1 = client.lookup(id1);
         respMap.put(id1, addr1);
-        InetSocketAddress addr2 = client.lookup(id2);
+        final InetSocketAddress addr2 = client.lookup(id2);
         respMap.put(id2, addr2);
 
         for (final Identifier id : respMap.keySet()) {
@@ -311,7 +311,7 @@ public class NamingTest {
 
       // registration
       // invoke registration from the client side
-      Configuration nameResolverConf = NameResolverConfiguration.CONF
+      final Configuration nameResolverConf = NameResolverConfiguration.CONF
           .set(NameResolverConfiguration.NAME_SERVER_HOSTNAME, localAddress)
           .set(NameResolverConfiguration.NAME_SERVICE_PORT, this.port)
           .set(NameResolverConfiguration.CACHE_TIMEOUT, this.TTL)

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkConnectionServiceTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkConnectionServiceTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkConnectionServiceTest.java
index e9c903c..6bc0ac9 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkConnectionServiceTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkConnectionServiceTest.java
@@ -61,7 +61,7 @@ public class NetworkConnectionServiceTest {
   @Rule
   public TestName name = new TestName();
 
-  private void runMessagingNetworkConnectionService(Codec<String> codec) throws Exception {
+  private void runMessagingNetworkConnectionService(final Codec<String> codec) throws Exception {
     final int numMessages = 2000;
     final Monitor monitor = new Monitor();
     try (final NetworkMessagingTestService messagingTestService = new NetworkMessagingTestService(localAddress)) {
@@ -75,7 +75,7 @@ public class NetworkConnectionServiceTest {
             conn.write("hello" + count);
           }
           monitor.mwait();
-        } catch (NetworkException e) {
+        } catch (final NetworkException e) {
           e.printStackTrace();
           throw new RuntimeException(e);
         }
@@ -101,7 +101,8 @@ public class NetworkConnectionServiceTest {
     runMessagingNetworkConnectionService(new StreamingStringCodec());
   }
 
-  public void runNetworkConnServiceWithMultipleConnFactories(Codec<String> stringCodec, Codec<Integer> integerCodec)
+  public void runNetworkConnServiceWithMultipleConnFactories(final Codec<String> stringCodec,
+                                                             final Codec<Integer> integerCodec)
       throws Exception {
     final ExecutorService executor = Executors.newFixedThreadPool(5);
 
@@ -126,7 +127,7 @@ public class NetworkConnectionServiceTest {
               conn.write("hello" + count);
             }
             monitor.mwait();
-          } catch (Exception e) {
+          } catch (final Exception e) {
             e.printStackTrace();
             throw new RuntimeException(e);
           }
@@ -144,7 +145,7 @@ public class NetworkConnectionServiceTest {
               conn.write(count);
             }
             monitor2.mwait();
-          } catch (Exception e) {
+          } catch (final Exception e) {
             e.printStackTrace();
             throw new RuntimeException(e);
           }
@@ -183,7 +184,7 @@ public class NetworkConnectionServiceTest {
     LOG.log(Level.FINEST, name.getMethodName());
     final int[] messageSizes = {1, 16, 32, 64, 512, 64 * 1024, 1024 * 1024};
 
-    for (int size : messageSizes) {
+    for (final int size : messageSizes) {
       final int numMessages = 300000 / (Math.max(1, size / 512));
       final Monitor monitor = new Monitor();
       final Codec<String> codec = new StringCodec();
@@ -200,7 +201,7 @@ public class NetworkConnectionServiceTest {
         try (final Connection<String> conn =
                  messagingTestService.getConnectionFromSenderToReceiver(groupCommClientId)) {
 
-          long start = System.currentTimeMillis();
+          final long start = System.currentTimeMillis();
           try {
             conn.open();
             for (int count = 0; count < numMessages; ++count) {
@@ -208,7 +209,7 @@ public class NetworkConnectionServiceTest {
               conn.write(message);
             }
             monitor.mwait();
-          } catch (NetworkException e) {
+          } catch (final NetworkException e) {
             e.printStackTrace();
             throw new RuntimeException(e);
           }
@@ -263,12 +264,12 @@ public class NetworkConnectionServiceTest {
                   conn.write(message);
                 }
                 monitor.mwait();
-              } catch (NetworkException e) {
+              } catch (final NetworkException e) {
                 e.printStackTrace();
                 throw new RuntimeException(e);
               }
             }
-          } catch (Exception e) {
+          } catch (final Exception e) {
             throw new RuntimeException(e);
           }
         }
@@ -294,7 +295,7 @@ public class NetworkConnectionServiceTest {
     LOG.log(Level.FINEST, name.getMethodName());
     final int[] messageSizes = {2000}; // {1,16,32,64,512,64*1024,1024*1024};
 
-    for (int size : messageSizes) {
+    for (final int size : messageSizes) {
       final int numMessages = 300000 / (Math.max(1, size / 512));
       final int numThreads = 2;
       final int totalNumMessages = numMessages * numThreads;
@@ -326,7 +327,7 @@ public class NetworkConnectionServiceTest {
                     // send messages to the receiver.
                     conn.write(message);
                   }
-                } catch (Exception e) {
+                } catch (final Exception e) {
                   throw new RuntimeException(e);
                 }
               }
@@ -355,7 +356,7 @@ public class NetworkConnectionServiceTest {
     final int batchSize = 1024 * 1024;
     final int[] messageSizes = {32, 64, 512};
 
-    for (int size : messageSizes) {
+    for (final int size : messageSizes) {
       final int numMessages = 300 / (Math.max(1, size / 512));
       final Monitor monitor = new Monitor();
       final Codec<String> codec = new StringCodec();
@@ -382,7 +383,7 @@ public class NetworkConnectionServiceTest {
               conn.write(sb.toString());
             }
             monitor.mwait();
-          } catch (NetworkException e) {
+          } catch (final NetworkException e) {
             e.printStackTrace();
             throw new RuntimeException(e);
           }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkServiceTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkServiceTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkServiceTest.java
index 85b2860..6045be2 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkServiceTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/NetworkServiceTest.java
@@ -70,14 +70,14 @@ public class NetworkServiceTest {
   public void testMessagingNetworkService() throws Exception {
     LOG.log(Level.FINEST, name.getMethodName());
 
-    IdentifierFactory factory = new StringIdentifierFactory();
+    final IdentifierFactory factory = new StringIdentifierFactory();
 
     final Injector injector = Tang.Factory.getTang().newInjector();
     injector.bindVolatileParameter(NameServerParameters.NameServerIdentifierFactory.class, factory);
     injector.bindVolatileInstance(LocalAddressProvider.class, this.localAddressProvider);
 
     try (final NameServer server = injector.getInstance(NameServer.class)) {
-      int nameServerPort = server.getPort();
+      final int nameServerPort = server.getPort();
 
       final int numMessages = 10;
       final Monitor monitor = new Monitor();
@@ -121,7 +121,7 @@ public class NetworkServiceTest {
           }
           monitor.mwait();
 
-        } catch (NetworkException e) {
+        } catch (final NetworkException e) {
           e.printStackTrace();
           throw new RuntimeException(e);
         }
@@ -136,18 +136,18 @@ public class NetworkServiceTest {
   public void testMessagingNetworkServiceRate() throws Exception {
     LOG.log(Level.FINEST, name.getMethodName());
 
-    IdentifierFactory factory = new StringIdentifierFactory();
+    final IdentifierFactory factory = new StringIdentifierFactory();
 
     final Injector injector = Tang.Factory.getTang().newInjector();
     injector.bindVolatileParameter(NameServerParameters.NameServerIdentifierFactory.class, factory);
     injector.bindVolatileInstance(LocalAddressProvider.class, this.localAddressProvider);
 
     try (final NameServer server = injector.getInstance(NameServer.class)) {
-      int nameServerPort = server.getPort();
+      final int nameServerPort = server.getPort();
 
       final int[] messageSizes = {1, 16, 32, 64, 512, 64 * 1024, 1024 * 1024};
 
-      for (int size : messageSizes) {
+      for (final int size : messageSizes) {
         final int numMessages = 300000 / (Math.max(1, size / 512));
         final Monitor monitor = new Monitor();
 
@@ -181,28 +181,28 @@ public class NetworkServiceTest {
           final int port1 = ns1.getTransport().getListeningPort();
           server.register(factory.getNewInstance("task1"), new InetSocketAddress(this.localAddress, port1));
 
-          Identifier destId = factory.getNewInstance(name2);
+          final Identifier destId = factory.getNewInstance(name2);
 
           // build the message
-          StringBuilder msb = new StringBuilder();
+          final StringBuilder msb = new StringBuilder();
           for (int i = 0; i < size; i++) {
             msb.append("1");
           }
-          String message = msb.toString();
+          final String message = msb.toString();
 
-          long start = System.currentTimeMillis();
+          final long start = System.currentTimeMillis();
           try (Connection<String> conn = ns1.newConnection(destId)) {
             for (int i = 0; i < numMessages; i++) {
               conn.open();
               conn.write(message);
             }
             monitor.mwait();
-          } catch (NetworkException e) {
+          } catch (final NetworkException e) {
             e.printStackTrace();
             throw new RuntimeException(e);
           }
-          long end = System.currentTimeMillis();
-          double runtime = ((double) end - start) / 1000;
+          final long end = System.currentTimeMillis();
+          final double runtime = ((double) end - start) / 1000;
           LOG.log(Level.FINEST, "size: " + size + "; messages/s: " + numMessages / runtime +
               " bandwidth(bytes/s): " + ((double) numMessages * 2 * size) / runtime); // x2 for unicode chars
         }
@@ -226,14 +226,14 @@ public class NetworkServiceTest {
     try (final NameServer server = injector.getInstance(NameServer.class)) {
       final int nameServerPort = server.getPort();
 
-      BlockingQueue<Object> barrier = new LinkedBlockingQueue<Object>();
+      final BlockingQueue<Object> barrier = new LinkedBlockingQueue<Object>();
 
-      int numThreads = 4;
+      final int numThreads = 4;
       final int size = 2000;
       final int numMessages = 300000 / (Math.max(1, size / 512));
       final int totalNumMessages = numMessages * numThreads;
 
-      ExecutorService e = Executors.newCachedThreadPool();
+      final ExecutorService e = Executors.newCachedThreadPool();
       for (int t = 0; t < numThreads; t++) {
         final int tt = t;
 
@@ -241,7 +241,7 @@ public class NetworkServiceTest {
           @Override
           public void run() {
             try {
-              Monitor monitor = new Monitor();
+              final Monitor monitor = new Monitor();
 
               // network service
               final String name2 = "task2-" + tt;
@@ -274,14 +274,14 @@ public class NetworkServiceTest {
                 final int port1 = ns1.getTransport().getListeningPort();
                 server.register(factory.getNewInstance(name1), new InetSocketAddress(localAddress, port1));
 
-                Identifier destId = factory.getNewInstance(name2);
+                final Identifier destId = factory.getNewInstance(name2);
 
                 // build the message
-                StringBuilder msb = new StringBuilder();
+                final StringBuilder msb = new StringBuilder();
                 for (int i = 0; i < size; i++) {
                   msb.append("1");
                 }
-                String message = msb.toString();
+                final String message = msb.toString();
 
                 try (Connection<String> conn = ns1.newConnection(destId)) {
                   for (int i = 0; i < numMessages; i++) {
@@ -289,12 +289,12 @@ public class NetworkServiceTest {
                     conn.write(message);
                   }
                   monitor.mwait();
-                } catch (NetworkException e) {
+                } catch (final NetworkException e) {
                   e.printStackTrace();
                   throw new RuntimeException(e);
                 }
               }
-            } catch (Exception e) {
+            } catch (final Exception e) {
               e.printStackTrace();
               throw new RuntimeException(e);
             }
@@ -303,16 +303,16 @@ public class NetworkServiceTest {
       }
 
       // start and time
-      long start = System.currentTimeMillis();
-      Object ignore = new Object();
+      final long start = System.currentTimeMillis();
+      final Object ignore = new Object();
       for (int i = 0; i < numThreads; i++) {
         barrier.add(ignore);
       }
       e.shutdown();
       e.awaitTermination(100, TimeUnit.SECONDS);
-      long end = System.currentTimeMillis();
+      final long end = System.currentTimeMillis();
 
-      double runtime = ((double) end - start) / 1000;
+      final double runtime = ((double) end - start) / 1000;
       LOG.log(Level.FINEST, "size: " + size + "; messages/s: " + totalNumMessages / runtime + 
           " bandwidth(bytes/s): " + ((double) totalNumMessages * 2 * size) / runtime); // x2 for unicode chars
     }
@@ -322,20 +322,20 @@ public class NetworkServiceTest {
   public void testMultithreadedSharedConnMessagingNetworkServiceRate() throws Exception {
     LOG.log(Level.FINEST, name.getMethodName());
 
-    IdentifierFactory factory = new StringIdentifierFactory();
+    final IdentifierFactory factory = new StringIdentifierFactory();
 
     final Injector injector = Tang.Factory.getTang().newInjector();
     injector.bindVolatileParameter(NameServerParameters.NameServerIdentifierFactory.class, factory);
     injector.bindVolatileInstance(LocalAddressProvider.class, this.localAddressProvider);
     try (final NameServer server = injector.getInstance(NameServer.class)) {
-      int nameServerPort = server.getPort();
+      final int nameServerPort = server.getPort();
 
       final int[] messageSizes = {2000}; // {1,16,32,64,512,64*1024,1024*1024};
 
-      for (int size : messageSizes) {
+      for (final int size : messageSizes) {
         final int numMessages = 300000 / (Math.max(1, size / 512));
-        int numThreads = 2;
-        int totalNumMessages = numMessages * numThreads;
+        final int numThreads = 2;
+        final int totalNumMessages = numMessages * numThreads;
         final Monitor monitor = new Monitor();
 
 
@@ -370,21 +370,21 @@ public class NetworkServiceTest {
           final int port1 = ns1.getTransport().getListeningPort();
           server.register(factory.getNewInstance("task1"), new InetSocketAddress(this.localAddress, port1));
 
-          Identifier destId = factory.getNewInstance(name2);
+          final Identifier destId = factory.getNewInstance(name2);
 
           try (final Connection<String> conn = ns1.newConnection(destId)) {
             conn.open();
 
             // build the message
-            StringBuilder msb = new StringBuilder();
+            final StringBuilder msb = new StringBuilder();
             for (int i = 0; i < size; i++) {
               msb.append("1");
             }
             final String message = msb.toString();
 
-            ExecutorService e = Executors.newCachedThreadPool();
+            final ExecutorService e = Executors.newCachedThreadPool();
 
-            long start = System.currentTimeMillis();
+            final long start = System.currentTimeMillis();
             for (int i = 0; i < numThreads; i++) {
               e.submit(new Runnable() {
 
@@ -402,8 +402,8 @@ public class NetworkServiceTest {
             e.awaitTermination(30, TimeUnit.SECONDS);
             monitor.mwait();
 
-            long end = System.currentTimeMillis();
-            double runtime = ((double) end - start) / 1000;
+            final long end = System.currentTimeMillis();
+            final double runtime = ((double) end - start) / 1000;
 
             LOG.log(Level.FINEST, "size: " + size + "; messages/s: " + totalNumMessages / runtime + 
                 " bandwidth(bytes/s): " + ((double) totalNumMessages * 2 * size) / runtime); // x2 for unicode chars
@@ -420,19 +420,19 @@ public class NetworkServiceTest {
   public void testMessagingNetworkServiceBatchingRate() throws Exception {
     LOG.log(Level.FINEST, name.getMethodName());
 
-    IdentifierFactory factory = new StringIdentifierFactory();
+    final IdentifierFactory factory = new StringIdentifierFactory();
 
     final Injector injector = Tang.Factory.getTang().newInjector();
     injector.bindVolatileParameter(NameServerParameters.NameServerIdentifierFactory.class, factory);
     injector.bindVolatileInstance(LocalAddressProvider.class, this.localAddressProvider);
 
     try (final NameServer server = injector.getInstance(NameServer.class)) {
-      int nameServerPort = server.getPort();
+      final int nameServerPort = server.getPort();
 
       final int batchSize = 1024 * 1024;
       final int[] messageSizes = {32, 64, 512};
 
-      for (int size : messageSizes) {
+      for (final int size : messageSizes) {
         final int numMessages = 300 / (Math.max(1, size / 512));
         final Monitor monitor = new Monitor();
 
@@ -466,19 +466,19 @@ public class NetworkServiceTest {
           final int port1 = ns1.getTransport().getListeningPort();
           server.register(factory.getNewInstance("task1"), new InetSocketAddress(this.localAddress, port1));
 
-          Identifier destId = factory.getNewInstance(name2);
+          final Identifier destId = factory.getNewInstance(name2);
 
           // build the message
-          StringBuilder msb = new StringBuilder();
+          final StringBuilder msb = new StringBuilder();
           for (int i = 0; i < size; i++) {
             msb.append("1");
           }
-          String message = msb.toString();
+          final String message = msb.toString();
 
-          long start = System.currentTimeMillis();
+          final long start = System.currentTimeMillis();
           try (Connection<String> conn = ns1.newConnection(destId)) {
             for (int i = 0; i < numMessages; i++) {
-              StringBuilder sb = new StringBuilder();
+              final StringBuilder sb = new StringBuilder();
               for (int j = 0; j < batchSize / size; j++) {
                 sb.append(message);
               }
@@ -486,13 +486,13 @@ public class NetworkServiceTest {
               conn.write(sb.toString());
             }
             monitor.mwait();
-          } catch (NetworkException e) {
+          } catch (final NetworkException e) {
             e.printStackTrace();
             throw new RuntimeException(e);
           }
-          long end = System.currentTimeMillis();
-          double runtime = ((double) end - start) / 1000;
-          long numAppMessages = numMessages * batchSize / size;
+          final long end = System.currentTimeMillis();
+          final double runtime = ((double) end - start) / 1000;
+          final long numAppMessages = numMessages * batchSize / size;
           LOG.log(Level.FINEST, "size: " + size + "; messages/s: " + numAppMessages / runtime +
               " bandwidth(bytes/s): " + ((double) numAppMessages * 2 * size) / runtime); // x2 for unicode chars
         }
@@ -510,14 +510,14 @@ public class NetworkServiceTest {
     private final Monitor monitor;
     private AtomicInteger count = new AtomicInteger(0);
 
-    MessageHandler(String name, Monitor monitor, int expected) {
+    MessageHandler(final String name, final Monitor monitor, final int expected) {
       this.name = name;
       this.monitor = monitor;
       this.expected = expected;
     }
 
     @Override
-    public void onNext(Message<T> value) {
+    public void onNext(final Message<T> value) {
 
       count.incrementAndGet();
 
@@ -540,7 +540,7 @@ public class NetworkServiceTest {
    */
   class ExceptionHandler implements EventHandler<Exception> {
     @Override
-    public void onNext(Exception error) {
+    public void onNext(final Exception error) {
       System.err.println(error);
     }
   }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/TestEvent.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/TestEvent.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/TestEvent.java
index 494f2e0..92ba655 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/TestEvent.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/TestEvent.java
@@ -28,7 +28,7 @@ public class TestEvent implements Serializable {
   private static final long serialVersionUID = 1L;
   private String message;
 
-  public TestEvent(String message) {
+  public TestEvent(final String message) {
     this.message = message;
   }
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/LoggingUtils.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/LoggingUtils.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/LoggingUtils.java
index d27f4cf..b10d876 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/LoggingUtils.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/LoggingUtils.java
@@ -24,10 +24,10 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 public final class LoggingUtils {
-  public static void setLoggingLevel(Level level) {
-    Handler[] handlers = Logger.getLogger("").getHandlers();
+  public static void setLoggingLevel(final Level level) {
+    final Handler[] handlers = Logger.getLogger("").getHandlers();
     ConsoleHandler ch = null;
-    for (Handler h : handlers) {
+    for (final Handler h : handlers) {
       if (h instanceof ConsoleHandler) {
         ch = (ConsoleHandler) h;
         break;

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/NetworkMessagingTestService.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/NetworkMessagingTestService.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/NetworkMessagingTestService.java
index ccc2e4b..ebc8608 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/NetworkMessagingTestService.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/NetworkMessagingTestService.java
@@ -117,7 +117,7 @@ public final class NetworkMessagingTestService implements AutoCloseable {
     }
 
     @Override
-    public void onNext(Message<T> value) {
+    public void onNext(final Message<T> value) {
       count.incrementAndGet();
       LOG.log(Level.FINE, "Count: {0}", count.get());
       LOG.log(Level.FINE,
@@ -136,11 +136,11 @@ public final class NetworkMessagingTestService implements AutoCloseable {
 
   public static final class TestListener<T> implements LinkListener<Message<T>> {
     @Override
-    public void onSuccess(Message<T> message) {
+    public void onSuccess(final Message<T> message) {
       LOG.log(Level.FINE, "success: " + message);
     }
     @Override
-    public void onException(Throwable cause, SocketAddress remoteAddress, Message<T> message) {
+    public void onException(final Throwable cause, final SocketAddress remoteAddress, final Message<T> message) {
       LOG.log(Level.WARNING, "exception: " + cause + message);
       throw new RuntimeException(cause);
     }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingIntegerCodec.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingIntegerCodec.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingIntegerCodec.java
index eaec90f..757a803 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingIntegerCodec.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingIntegerCodec.java
@@ -28,30 +28,30 @@ import java.io.IOException;
 public class StreamingIntegerCodec implements StreamingCodec<Integer> {
 
   @Override
-  public void encodeToStream(Integer obj, DataOutputStream stream) {
+  public void encodeToStream(final Integer obj, final DataOutputStream stream) {
     try {
       stream.writeInt(obj);
-    } catch (IOException e) {
+    } catch (final IOException e) {
       throw new RuntimeException(e);
     }
   }
 
   @Override
-  public Integer decodeFromStream(DataInputStream stream) {
+  public Integer decodeFromStream(final DataInputStream stream) {
     try {
       return stream.readInt();
-    } catch (IOException e) {
+    } catch (final IOException e) {
       throw new RuntimeException(e);
     }
   }
 
   @Override
-  public Integer decode(byte[] data) {
+  public Integer decode(final byte[] data) {
     return null;
   }
 
   @Override
-  public byte[] encode(Integer obj) {
+  public byte[] encode(final Integer obj) {
     return new byte[0];
   }
 }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingStringCodec.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingStringCodec.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingStringCodec.java
index 497c7fa..43efaf6 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingStringCodec.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StreamingStringCodec.java
@@ -27,29 +27,29 @@ import java.io.IOException;
 
 public class StreamingStringCodec implements StreamingCodec<String> {
   @Override
-  public byte[] encode(String obj) {
+  public byte[] encode(final String obj) {
     return obj.getBytes();
   }
 
   @Override
-  public String decode(byte[] buf) {
+  public String decode(final byte[] buf) {
     return new String(buf);
   }
 
   @Override
-  public void encodeToStream(String obj, DataOutputStream stream) {
+  public void encodeToStream(final String obj, final DataOutputStream stream) {
     try {
       stream.writeUTF(obj);
-    } catch (IOException e) {
+    } catch (final IOException e) {
       throw new RuntimeException(e);
     }
   }
 
   @Override
-  public String decodeFromStream(DataInputStream stream) {
+  public String decodeFromStream(final DataInputStream stream) {
     try {
       return stream.readUTF();
-    } catch (IOException e) {
+    } catch (final IOException e) {
       throw new RuntimeException(e);
     }
   }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StringCodec.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StringCodec.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StringCodec.java
index cee8421..d939b8e 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StringCodec.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/StringCodec.java
@@ -23,12 +23,12 @@ import org.apache.reef.wake.remote.Codec;
 
 public class StringCodec implements Codec<String> {
   @Override
-  public byte[] encode(String obj) {
+  public byte[] encode(final String obj) {
     return obj.getBytes();
   }
 
   @Override
-  public String decode(byte[] buf) {
+  public String decode(final byte[] buf) {
     return new String(buf);
   }
 }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/TimeoutHandler.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/TimeoutHandler.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/TimeoutHandler.java
index 5f13deb..146a6db 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/TimeoutHandler.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/network/util/TimeoutHandler.java
@@ -25,12 +25,12 @@ public class TimeoutHandler implements EventHandler<PeriodicEvent> {
 
   private final Monitor monitor;
 
-  public TimeoutHandler(Monitor monitor) {
+  public TimeoutHandler(final Monitor monitor) {
     this.monitor = monitor;
   }
 
   @Override
-  public void onNext(PeriodicEvent event) {
+  public void onNext(final PeriodicEvent event) {
     monitor.mnotify();
   }
 }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/ExternalMapTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/ExternalMapTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/ExternalMapTest.java
index 27f4e5c..38655c0 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/ExternalMapTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/ExternalMapTest.java
@@ -33,23 +33,23 @@ import java.util.*;
 public class ExternalMapTest {
   @Test
   public void testCodecRamMap() {
-    RamStorageService ramStore = new RamStorageService();
-    Codec<Integer> c = new IntegerCodec();
-    ExternalMap<Integer> m = new CodecRamMap<>(ramStore, c);
+    final RamStorageService ramStore = new RamStorageService();
+    final Codec<Integer> c = new IntegerCodec();
+    final ExternalMap<Integer> m = new CodecRamMap<>(ramStore, c);
     genericTest(m);
   }
 
   @Test
   public void testRamMap() {
-    RamStorageService ramStore = new RamStorageService();
-    ExternalMap<Integer> m = new RamMap<>(ramStore);
+    final RamStorageService ramStore = new RamStorageService();
+    final ExternalMap<Integer> m = new RamMap<>(ramStore);
     genericTest(m);
   }
 
 
-  void genericTest(ExternalMap<Integer> m) {
+  void genericTest(final ExternalMap<Integer> m) {
     m.put("foo", 42);
-    Map<String, Integer> smallMap = new HashMap<>();
+    final Map<String, Integer> smallMap = new HashMap<>();
     smallMap.put("bar", 43);
     smallMap.put("baz", 44);
 
@@ -63,19 +63,19 @@ public class ExternalMapTest {
     Assert.assertTrue(m.containsKey("bar"));
     Assert.assertFalse(m.containsKey("quuz"));
 
-    Set<String> barBaz = new HashSet<>();
+    final Set<String> barBaz = new HashSet<>();
     barBaz.add("bar");
     barBaz.add("baz");
     barBaz.add("quuz");
 
-    Iterable<Map.Entry<CharSequence, Integer>> it = m.getAll(barBaz);
+    final Iterable<Map.Entry<CharSequence, Integer>> it = m.getAll(barBaz);
 
-    Map<CharSequence, Integer> found = new TreeMap<>();
+    final Map<CharSequence, Integer> found = new TreeMap<>();
 
-    for (Map.Entry<CharSequence, Integer> e : it) {
+    for (final Map.Entry<CharSequence, Integer> e : it) {
       found.put(e.getKey(), e.getValue());
     }
-    Iterator<CharSequence> it2 = found.keySet().iterator();
+    final Iterator<CharSequence> it2 = found.keySet().iterator();
     Assert.assertTrue(it2.hasNext());
     CharSequence s = it2.next();
     Assert.assertEquals(s, "bar");

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/FramingTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/FramingTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/FramingTest.java
index cf6199e..e8722de 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/FramingTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/FramingTest.java
@@ -34,14 +34,14 @@ public class FramingTest {
 
   @Test
   public void frameRoundTripTest() throws IOException, ServiceException {
-    ByteArrayOutputStream baos = new ByteArrayOutputStream();
-    ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
-    FramingOutputStream o = new FramingOutputStream(baos);
-    FramingOutputStream o2 = new FramingOutputStream(baos2);
-    Accumulator<byte[]> a = o2.accumulator();
+    final ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    final ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
+    final FramingOutputStream o = new FramingOutputStream(baos);
+    final FramingOutputStream o2 = new FramingOutputStream(baos2);
+    final Accumulator<byte[]> a = o2.accumulator();
     int offset = 0;
     for (int i = 0; i < 256; i++) {
-      byte[] b = new byte[i];
+      final byte[] b = new byte[i];
       Arrays.fill(b, (byte) i);
       o.write(b);
       if (i == 255) {
@@ -56,16 +56,16 @@ public class FramingTest {
     }
     a.close();
     o2.close();
-    byte[] b1 = baos.toByteArray();
-    byte[] b2 = baos2.toByteArray();
+    final byte[] b1 = baos.toByteArray();
+    final byte[] b2 = baos2.toByteArray();
     Assert.assertArrayEquals(b1, b2);
-    FramingInputStream inA1 = new FramingInputStream(new ByteArrayInputStream(b1));
-    FramingInputStream inA2 = new FramingInputStream(new ByteArrayInputStream(b2));
+    final FramingInputStream inA1 = new FramingInputStream(new ByteArrayInputStream(b1));
+    final FramingInputStream inA2 = new FramingInputStream(new ByteArrayInputStream(b2));
     for (int i = 0; i <= 256; i++) {
-      byte[] b = new byte[i];
+      final byte[] b = new byte[i];
       Arrays.fill(b, (byte) i);
-      byte[] f = inA1.readFrame();
-      byte[] g = inA2.readFrame();
+      final byte[] f = inA1.readFrame();
+      final byte[] g = inA2.readFrame();
       if (i == 256) {
         Assert.assertNull(f);
         Assert.assertNull(g);
@@ -77,10 +77,10 @@ public class FramingTest {
     inA2.close();
     inA1.close();
 
-    FramingInputStream inB1 = new FramingInputStream(new ByteArrayInputStream(b1));
+    final FramingInputStream inB1 = new FramingInputStream(new ByteArrayInputStream(b1));
     int i = 0;
-    for (byte[] bin : inB1) {
-      byte[] b = new byte[i];
+    for (final byte[] bin : inB1) {
+      final byte[] b = new byte[i];
       Arrays.fill(b, (byte) i);
       Assert.assertArrayEquals(b, bin);
       i++;
@@ -88,10 +88,10 @@ public class FramingTest {
     Assert.assertEquals(256, i);
     inB1.close();
 
-    FramingInputStream inB2 = new FramingInputStream(new ByteArrayInputStream(b2));
+    final FramingInputStream inB2 = new FramingInputStream(new ByteArrayInputStream(b2));
     i = 0;
-    for (byte[] bin : inB2) {
-      byte[] b = new byte[i];
+    for (final byte[] bin : inB2) {
+      final byte[] b = new byte[i];
       Arrays.fill(b, (byte) i);
       Assert.assertArrayEquals(b, bin);
       i++;

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/MergingIteratorTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/MergingIteratorTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/MergingIteratorTest.java
index f859921..bfab073 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/MergingIteratorTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/MergingIteratorTest.java
@@ -33,7 +33,7 @@ public class MergingIteratorTest {
     Comparator<Integer> cmp = new Comparator<Integer>() {
 
       @Override
-      public int compare(Integer o1, Integer o2) {
+      public int compare(final Integer o1, final Integer o2) {
         return Integer.compare(o1, o2);
       }
     };

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SortingSpoolTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SortingSpoolTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SortingSpoolTest.java
index b7c0e09..6e43683 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SortingSpoolTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SortingSpoolTest.java
@@ -34,7 +34,7 @@ public class SortingSpoolTest {
     genericTest(new SortingRamSpool<Integer>(), new Comparator<Integer>() {
 
       @Override
-      public int compare(Integer o1, Integer o2) {
+      public int compare(final Integer o1, final Integer o2) {
         return Integer.compare(o1, o2);
       }
 
@@ -43,10 +43,10 @@ public class SortingSpoolTest {
 
   @Test
   public void testRamSpoolComparator() throws ServiceException {
-    Comparator<Integer> backwards = new Comparator<Integer>() {
+    final Comparator<Integer> backwards = new Comparator<Integer>() {
 
       @Override
-      public int compare(Integer o1, Integer o2) {
+      public int compare(final Integer o1, final Integer o2) {
         return -1 * o1.compareTo(o2);
       }
 
@@ -56,60 +56,60 @@ public class SortingSpoolTest {
 
   @Test(expected = IllegalStateException.class)
   public void testRamSpoolAddAfterClose() throws ServiceException {
-    Spool<Integer> s = new SortingRamSpool<>();
+    final Spool<Integer> s = new SortingRamSpool<>();
     genericAddAfterCloseTest(s);
   }
 
   @Test(expected = UnsupportedOperationException.class)
   public void testRamSpoolCantRemove() throws ServiceException {
-    Spool<Integer> s = new SortingRamSpool<>();
+    final Spool<Integer> s = new SortingRamSpool<>();
     genericCantRemove(s);
   }
 
   @Test(expected = IllegalStateException.class)
   public void testIteratorBeforeClose() throws ServiceException {
-    Spool<Integer> s = new SortingRamSpool<>();
+    final Spool<Integer> s = new SortingRamSpool<>();
     genericIteratorBeforeClose(s);
   }
 
-  void genericTest(Spool<Integer> s, Comparator<Integer> comparator)
+  void genericTest(final Spool<Integer> s, final Comparator<Integer> comparator)
       throws ServiceException {
-    List<Integer> l = new ArrayList<Integer>();
-    Random r = new Random(42);
+    final List<Integer> l = new ArrayList<Integer>();
+    final Random r = new Random(42);
     while (l.size() < 100) {
       l.add(r.nextInt(75));
     }
-    Accumulator<Integer> a = s.accumulator();
+    final Accumulator<Integer> a = s.accumulator();
     for (int i = 0; i < 100; i++) {
       a.add(l.get(i));
     }
     a.close();
-    List<Integer> m = new ArrayList<Integer>();
-    for (int i : s) {
+    final List<Integer> m = new ArrayList<Integer>();
+    for (final int i : s) {
       m.add(i);
     }
-    Integer[] sorted = l.toArray(new Integer[0]);
+    final Integer[] sorted = l.toArray(new Integer[0]);
     Arrays.sort(sorted, 0, sorted.length, comparator);
-    Integer[] shouldBeSorted = m.toArray(new Integer[0]);
+    final Integer[] shouldBeSorted = m.toArray(new Integer[0]);
     Assert.assertArrayEquals(sorted, shouldBeSorted);
   }
 
-  void genericAddAfterCloseTest(Spool<?> s) throws ServiceException {
-    Accumulator<?> a = s.accumulator();
+  void genericAddAfterCloseTest(final Spool<?> s) throws ServiceException {
+    final Accumulator<?> a = s.accumulator();
     a.close();
     a.add(null);
   }
 
-  void genericCantRemove(Spool<Integer> s) throws ServiceException {
-    Accumulator<Integer> a = s.accumulator();
+  void genericCantRemove(final Spool<Integer> s) throws ServiceException {
+    final Accumulator<Integer> a = s.accumulator();
     a.add(10);
     a.close();
-    Iterator<?> it = s.iterator();
+    final Iterator<?> it = s.iterator();
     it.remove();
   }
 
-  void genericIteratorBeforeClose(Spool<Integer> s) throws ServiceException {
-    Accumulator<Integer> a = s.accumulator();
+  void genericIteratorBeforeClose(final Spool<Integer> s) throws ServiceException {
+    final Accumulator<Integer> a = s.accumulator();
     a.add(10);
     s.iterator();
   }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SpoolFileTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SpoolFileTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SpoolFileTest.java
index 9a76b27..2ff6744 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SpoolFileTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/SpoolFileTest.java
@@ -59,12 +59,12 @@ public class SpoolFileTest {
           return new Accumulator<Integer>() {
 
             @Override
-            public void add(Integer datum) {
+            public void add(final Integer datum) {
               try {
-                int d = datum;
+                final int d = datum;
                 out.write(new byte[]{(byte) (d >>> 24), (byte) (d >>> 16),
                     (byte) (d >>> 8), (byte) d});
-              } catch (IOException e) {
+              } catch (final IOException e) {
                 throw new IllegalStateException(e);
               }
             }
@@ -73,7 +73,7 @@ public class SpoolFileTest {
             public void close() {
               try {
                 out.flush();
-              } catch (IOException e) {
+              } catch (final IOException e) {
                 throw new IllegalStateException(e);
               }
             }
@@ -88,7 +88,7 @@ public class SpoolFileTest {
       return new Iterable<Integer>() {
         @Override
         public Iterator<Integer> iterator() {
-          Iterator<Integer> it = new Iterator<Integer>() {
+          final Iterator<Integer> it = new Iterator<Integer>() {
             final byte[] inb = new byte[4];
             Integer nextInt;
 
@@ -98,10 +98,10 @@ public class SpoolFileTest {
             }
 
             private void prime() {
-              int read;
+              final int read;
               try {
                 read = in.read(inb);
-              } catch (IOException e) {
+              } catch (final IOException e) {
                 throw new IllegalStateException(e);
               }
               if (read != 4) {
@@ -115,7 +115,7 @@ public class SpoolFileTest {
 
             @Override
             public Integer next() {
-              Integer ret = nextInt;
+              final Integer ret = nextInt;
               prime();
               return ret;
             }
@@ -150,8 +150,8 @@ public class SpoolFileTest {
 
   @Test
   public void testFile() throws ServiceException {
-    LocalStorageService service = new LocalStorageService("spoolTest", "file");
-    Spool<Integer> f = new SerializerFileSpool<Integer>(service, serializer,
+    final LocalStorageService service = new LocalStorageService("spoolTest", "file");
+    final Spool<Integer> f = new SerializerFileSpool<Integer>(service, serializer,
         deserializer);
     test(f);
     service.getScratchSpace().delete();
@@ -159,23 +159,23 @@ public class SpoolFileTest {
 
   @Test
   public void testInterop() throws ServiceException {
-    LocalStorageService service = new LocalStorageService("spoolTest", "file");
-    Codec<Integer> c = new IntegerCodec();
+    final LocalStorageService service = new LocalStorageService("spoolTest", "file");
+    final Codec<Integer> c = new IntegerCodec();
 
 
-    CodecFileAccumulable<Integer, Codec<Integer>> f = new CodecFileAccumulable<Integer, Codec<Integer>>(
+    final CodecFileAccumulable<Integer, Codec<Integer>> f = new CodecFileAccumulable<Integer, Codec<Integer>>(
         service, c);
-    CodecFileIterable<Integer, Codec<Integer>> g = new CodecFileIterable<Integer, Codec<Integer>>(
+    final CodecFileIterable<Integer, Codec<Integer>> g = new CodecFileIterable<Integer, Codec<Integer>>(
         new File(f.getName()), c);
     test(f, g);
     service.getScratchSpace().delete();
   }
 
-  protected void test(Spool<Integer> f) throws ServiceException {
+  protected void test(final Spool<Integer> f) throws ServiceException {
     test(f, f);
   }
 
-  protected void test(Accumulable<Integer> f, Iterable<Integer> g) throws ServiceException {
+  protected void test(final Accumulable<Integer> f, final Iterable<Integer> g) throws ServiceException {
 
     try (Accumulator<Integer> acc = f.accumulator()) {
       for (int i = 0; i < 1000; i++) {
@@ -183,12 +183,12 @@ public class SpoolFileTest {
       }
     }
     int i = 0;
-    for (int j : g) {
+    for (final int j : g) {
       Assert.assertEquals(i, j);
       i++;
     }
-    Iterator<Integer> itA = g.iterator();
-    Iterator<Integer> itB = g.iterator();
+    final Iterator<Integer> itA = g.iterator();
+    final Iterator<Integer> itB = g.iterator();
 
     for (i = 0; i < 1000; i++) {
       Assert.assertEquals((int) itA.next(), i);

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/TupleSerializerTest.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/TupleSerializerTest.java b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/TupleSerializerTest.java
index 9fab5af..1c4e48a 100644
--- a/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/TupleSerializerTest.java
+++ b/lang/java/reef-io/src/test/java/org/apache/reef/services/storage/TupleSerializerTest.java
@@ -60,7 +60,7 @@ public class TupleSerializerTest {
         keySerializer, valSerializer);
 
     baos = new ByteArrayOutputStream();
-    Accumulator<Tuple<Integer, String>> acc = fts.create(baos).accumulator();
+    final Accumulator<Tuple<Integer, String>> acc = fts.create(baos).accumulator();
     for (int i = 0; i < 100; i++) {
       acc.add(new Tuple<>(i, i + ""));
     }
@@ -74,8 +74,8 @@ public class TupleSerializerTest {
   @Test
   public void testFramingSerializer() throws ServiceException, IOException {
     int i = 0;
-    for (Tuple<Integer, String> t : iterable) {
-      Tuple<Integer, String> u = new Tuple<>(i, i + "");
+    for (final Tuple<Integer, String> t : iterable) {
+      final Tuple<Integer, String> u = new Tuple<>(i, i + "");
       Assert.assertEquals(u, t);
       i++;
     }
@@ -84,13 +84,13 @@ public class TupleSerializerTest {
 
   @Test(expected = NoSuchElementException.class)
   public void testReadOffEnd() {
-    Iterator<Tuple<Integer, String>> it = iterable.iterator();
+    final Iterator<Tuple<Integer, String>> it = iterable.iterator();
     try {
       while (it.hasNext()) {
         it.next();
         it.hasNext();
       }
-    } catch (NoSuchElementException e) {
+    } catch (final NoSuchElementException e) {
       throw new IllegalStateException("Errored out too early!", e);
     }
     it.next();
@@ -98,7 +98,7 @@ public class TupleSerializerTest {
 
   @Test(expected = UnsupportedOperationException.class)
   public void testCantRemove() {
-    Iterator<Tuple<Integer, String>> it = iterable.iterator();
+    final Iterator<Tuple<Integer, String>> it = iterable.iterator();
     it.next();
     it.remove();
   }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/sslhacks/UnsafeHostNameVerifier.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/sslhacks/UnsafeHostNameVerifier.java b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/sslhacks/UnsafeHostNameVerifier.java
index f20fa9a..e706d64 100644
--- a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/sslhacks/UnsafeHostNameVerifier.java
+++ b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/sslhacks/UnsafeHostNameVerifier.java
@@ -29,22 +29,22 @@ import java.security.cert.X509Certificate;
 final class UnsafeHostNameVerifier implements X509HostnameVerifier {
 
   @Override
-  public void verify(String host, SSLSocket ssl) throws IOException {
+  public void verify(final String host, final SSLSocket ssl) throws IOException {
 
   }
 
   @Override
-  public void verify(String host, X509Certificate cert) throws SSLException {
+  public void verify(final String host, final X509Certificate cert) throws SSLException {
 
   }
 
   @Override
-  public void verify(String host, String[] cns, String[] subjectAlts) throws SSLException {
+  public void verify(final String host, final String[] cns, final String[] subjectAlts) throws SSLException {
 
   }
 
   @Override
-  public boolean verify(String s, SSLSession sslSession) {
+  public boolean verify(final String s, final SSLSession sslSession) {
     return true;
   }
 }

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/AmContainerSpec.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/AmContainerSpec.java b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/AmContainerSpec.java
index 5249f69..9c743dc 100644
--- a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/AmContainerSpec.java
+++ b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/AmContainerSpec.java
@@ -161,12 +161,12 @@ public final class AmContainerSpec {
 
   @Override
   public String toString() {
-    StringWriter writer = new StringWriter();
-    String objectString;
+    final StringWriter writer = new StringWriter();
+    final String objectString;
     try {
       OBJECT_MAPPER.writeValue(writer, this);
       objectString = writer.toString();
-    } catch (IOException e) {
+    } catch (final IOException e) {
       return null;
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationID.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationID.java b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationID.java
index 6c9a18e..a14c7ee 100644
--- a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationID.java
+++ b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationID.java
@@ -59,12 +59,12 @@ public final class ApplicationID {
 
   @Override
   public String toString() {
-    StringWriter writer = new StringWriter();
-    String objectString;
+    final StringWriter writer = new StringWriter();
+    final String objectString;
     try {
       OBJECT_MAPPER.writeValue(writer, this);
       objectString = writer.toString();
-    } catch (IOException e) {
+    } catch (final IOException e) {
       return null;
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationResponse.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationResponse.java b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationResponse.java
index 25041fd..bde2aab 100644
--- a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationResponse.java
+++ b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationResponse.java
@@ -54,12 +54,12 @@ public final class ApplicationResponse {
 
   @Override
   public String toString() {
-    StringWriter writer = new StringWriter();
-    String objectString;
+    final StringWriter writer = new StringWriter();
+    final String objectString;
     try {
       OBJECT_MAPPER.writeValue(writer, this);
       objectString = writer.toString();
-    } catch (IOException e) {
+    } catch (final IOException e) {
       return null;
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-reef/blob/141c7fa0/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationState.java
----------------------------------------------------------------------
diff --git a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationState.java b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationState.java
index 92bea8e..7e9e1db 100644
--- a/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationState.java
+++ b/lang/java/reef-runtime-hdinsight/src/main/java/org/apache/reef/runtime/hdinsight/client/yarnrest/ApplicationState.java
@@ -66,7 +66,7 @@ public final class ApplicationState {
     return finishedTime;
   }
 
-  public void setFinishedTime(long finishedTime) {
+  public void setFinishedTime(final long finishedTime) {
     this.finishedTime = finishedTime;
   }
 
@@ -75,7 +75,7 @@ public final class ApplicationState {
     return amContainerLogs;
   }
 
-  public void setAmContainerLogs(String amContainerLogs) {
+  public void setAmContainerLogs(final String amContainerLogs) {
     this.amContainerLogs = amContainerLogs;
   }
 
@@ -84,7 +84,7 @@ public final class ApplicationState {
     return trackingUI;
   }
 
-  public void setTrackingUI(String trackingUI) {
+  public void setTrackingUI(final String trackingUI) {
     this.trackingUI = trackingUI;
   }
 
@@ -93,7 +93,7 @@ public final class ApplicationState {
     return state;
   }
 
-  public void setState(String state) {
+  public void setState(final String state) {
     this.state = state;
   }
 
@@ -102,7 +102,7 @@ public final class ApplicationState {
     return user;
   }
 
-  public void setUser(String user) {
+  public void setUser(final String user) {
     this.user = user;
   }
 
@@ -111,7 +111,7 @@ public final class ApplicationState {
     return id;
   }
 
-  public void setId(String id) {
+  public void setId(final String id) {
     this.id = id;
   }
 
@@ -120,7 +120,7 @@ public final class ApplicationState {
     return clusterId;
   }
 
-  public void setClusterId(String clusterId) {
+  public void setClusterId(final String clusterId) {
     this.clusterId = clusterId;
   }
 
@@ -129,7 +129,7 @@ public final class ApplicationState {
     return finalStatus;
   }
 
-  public void setFinalStatus(String finalStatus) {
+  public void setFinalStatus(final String finalStatus) {
     this.finalStatus = finalStatus;
   }
 
@@ -138,7 +138,7 @@ public final class ApplicationState {
     return amHostHttpAddress;
   }
 
-  public void setAmHostHttpAddress(String amHostHttpAddress) {
+  public void setAmHostHttpAddress(final String amHostHttpAddress) {
     this.amHostHttpAddress = amHostHttpAddress;
   }
 
@@ -147,7 +147,7 @@ public final class ApplicationState {
     return progress;
   }
 
-  public void setProgress(String progress) {
+  public void setProgress(final String progress) {
     this.progress = progress;
   }
 
@@ -156,7 +156,7 @@ public final class ApplicationState {
     return name;
   }
 
-  public void setName(String name) {
+  public void setName(final String name) {
     this.name = name;
   }
 
@@ -165,7 +165,7 @@ public final class ApplicationState {
     return applicationType;
   }
 
-  public void setApplicationType(String applicationType) {
+  public void setApplicationType(final String applicationType) {
     this.applicationType = applicationType;
   }
 
@@ -174,7 +174,7 @@ public final class ApplicationState {
     return startedTime;
   }
 
-  public void setStartedTime(long startedTime) {
+  public void setStartedTime(final long startedTime) {
     this.startedTime = startedTime;
   }
 
@@ -183,7 +183,7 @@ public final class ApplicationState {
     return elapsedTime;
   }
 
-  public void setElapsedTime(long elapsedTime) {
+  public void setElapsedTime(final long elapsedTime) {
     this.elapsedTime = elapsedTime;
   }
 
@@ -192,7 +192,7 @@ public final class ApplicationState {
     return diagnostics;
   }
 
-  public void setDiagnostics(String diagnostics) {
+  public void setDiagnostics(final String diagnostics) {
     this.diagnostics = diagnostics;
   }
 
@@ -201,7 +201,7 @@ public final class ApplicationState {
     return trackingUrl;
   }
 
-  public void setTrackingUrl(String trackingUrl) {
+  public void setTrackingUrl(final String trackingUrl) {
     this.trackingUrl = trackingUrl;
   }
 
@@ -210,7 +210,7 @@ public final class ApplicationState {
     return queue;
   }
 
-  public void setQueue(String queue) {
+  public void setQueue(final String queue) {
     this.queue = queue;
   }
 
@@ -219,7 +219,7 @@ public final class ApplicationState {
     return allocatedMB;
   }
 
-  public void setAllocatedMB(int allocatedMB) {
+  public void setAllocatedMB(final int allocatedMB) {
     this.allocatedMB = allocatedMB;
   }
 
@@ -228,7 +228,7 @@ public final class ApplicationState {
     return allocatedVCores;
   }
 
-  public void setAllocatedVCores(int allocatedVCores) {
+  public void setAllocatedVCores(final int allocatedVCores) {
     this.allocatedVCores = allocatedVCores;
   }
 
@@ -237,7 +237,7 @@ public final class ApplicationState {
     return runningContainers;
   }
 
-  public void setRunningContainers(int runningContainers) {
+  public void setRunningContainers(final int runningContainers) {
     this.runningContainers = runningContainers;
   }
 
@@ -246,7 +246,7 @@ public final class ApplicationState {
     return memorySeconds;
   }
 
-  public void setMemorySeconds(long memorySeconds) {
+  public void setMemorySeconds(final long memorySeconds) {
     this.memorySeconds = memorySeconds;
   }
 
@@ -256,18 +256,18 @@ public final class ApplicationState {
   }
 
   @SuppressWarnings("checkstyle:hiddenfield")
-  public void setVCoreSeconds(long vCoreSeconds) {
+  public void setVCoreSeconds(final long vCoreSeconds) {
     this.vCoreSeconds = vCoreSeconds;
   }
 
   @Override
   public String toString() {
-    StringWriter writer = new StringWriter();
-    String objectString;
+    final StringWriter writer = new StringWriter();
+    final String objectString;
     try {
       OBJECT_MAPPER.writeValue(writer, this);
       objectString = writer.toString();
-    } catch (IOException e) {
+    } catch (final IOException e) {
       return null;
     }