Some comments and fixes

src/kademlia/dht/KadContent.java

@@ -1,19 +1,17 @@
 package kademlia.dht;
 
-import com.google.gson.Gson;
 import kademlia.node.NodeId;
 
 /**
  * Any piece of content that needs to be stored on the DHT
  *
  * @author Joshua Kissoon
- * @param <T>
  *
  * @since 20140224
  */
 public interface KadContent
 {
-    
+
     /**
      * @return NodeId The DHT key for this content
      */
@@ -45,7 +43,23 @@ public interface KadContent
      */
     public String getOwnerId();
 
+    /**
+     * Each content needs to be in byte format for transporting and storage,
+     * this method takes care of that.
+     *
+     * Each object is responsible for transforming itself to byte format since the
+     * structure of methods may differ.
+     *
+     * @return byte[] The content in byte format
+     */
     public byte[] toBytes();
 
+    /**
+     * Given the Content in byte format, read it
+     *
+     * @param data The object in byte format
+     *
+     * @return A new object from the given byte[]
+     */
     public KadContent fromBytes(byte[] data);
 }

src/kademlia/tests/ContentSendingTest.java

@@ -38,7 +38,6 @@ public class ContentSendingTest
              */
             System.out.println("Retrieving Content");
             GetParameter gp = new GetParameter(c.getKey(), DHTContentImpl.TYPE);
-            gp.setType(DHTContentImpl.TYPE);
             gp.setOwnerId(c.getOwnerId());
             System.out.println("Get Parameter: " + gp);
             List<StorageEntry> conte = kad2.get(gp, 4);

src/kademlia/tests/DHTContentImpl.java

@@ -13,6 +13,8 @@ import kademlia.node.NodeId;
 public class DHTContentImpl implements KadContent
 {
 
+    public static final transient String TYPE = "DHTContentImpl";
+
     private NodeId key;
     private String data;
     private String ownerId;
@@ -22,10 +24,10 @@ public class DHTContentImpl implements KadContent
     {
         this.createTs = this.updateTs = System.currentTimeMillis() / 1000L;
     }
-    
+
     public DHTContentImpl()
     {
-        
+
     }
 
     public DHTContentImpl(String ownerId, String data)
@@ -75,15 +77,14 @@ public class DHTContentImpl implements KadContent
     {
         return this.updateTs;
     }
-    
-    
+
     @Override
     public byte[] toBytes()
     {
         Gson gson = new Gson();
         return gson.toJson(this).getBytes();
     }
-    
+
     @Override
     public DHTContentImpl fromBytes(byte[] data)
     {