title: NoClassDefFoundError with Kryo
body: <p>I am looking for Kryo custom Serialization and De serialization example.
  How to check the the correctness of the Kryo read and write function. </p>
  
  <p>I have written some code to check, but it return exception. Any help would be appreciable. 
  Thanks in advance. </p>
  
  <pre><code>import com.esotericsoftware.kryo.Kryo;
  import com.esotericsoftware.kryo.KryoSerializable;
  import com.esotericsoftware.kryo.Serializer;
  import com.esotericsoftware.kryo.io.Input;
  import com.esotericsoftware.kryo.io.Output;
  import com.esotericsoftware.kryo.serializers.MapSerializer;
  
  public class KryoSample implements KryoSerializable{
  
  
  int number = 12345;
  String name = "Siemens";
  boolean good = false;
  
  String type = "Serializer ";
  public void someValues(){       
      String name = " Kryo ";
      String type = "Serializer ";
  }
  
  public KryoSample(){}
  
  public KryoSample(String name, String type){
  
       name = " Kryo ";
       type = "Serializer ";
  
  }
  
  
  @Override
  public void read(Kryo kryo, Input input) {
      // TODO Auto-generated method stub      
      try{
  
     String name  = input.readString();
     int number = input.readInt();
     boolean good = input.readBoolean();
  
     System.out.println(name+": "+number+" : "+good);
  
      }catch(Exception e){
          System.out.println(" Read Exception  "+e.getMessage());
      }       
  }
  
  
  @Override
  public void write(Kryo kryo, Output output) {
      // TODO Auto-generated method stub      
      try{
      output.writeString(name);
      output.writeBoolean(good);
      output.write(number);
      }catch(Exception e){
          System.out.println("  Write Exception "+e.getMessage());
      }
  
  }
  public static void main(String args[]){
      try{
      Kryo kryoObj = null;
      //kryoObj = new Kryo();
      kryoObj.setReferences(false);
      kryoObj.register(KryoSample.class, new MapSerializer());
  
      System.out.println(" TRY: ");
  
      //Kryo kryoObj = new Kryo();
      Output outputObj = new Output();        
      Input inputObj = new Input();       
      KryoSample kryoSample = new KryoSample();
  
      kryoSample.write(kryoObj, outputObj);
      kryoSample.read(kryoObj, inputObj);
      }catch(Exception e){
          System.out.println("Kryo Exeption "+e.getMessage());
          }
  }
  
  }
  </code></pre>