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public class HelloWorld {

   public static void main(String args[]) {

   }

}

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public interface SampleService {

   public LoanRequest createRequest(LoadRequest loanRequest);

}

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@Retention(value=RetentionPolicy.RUNTIME)
@Target(value=ElementType.FIELD)
public @interface CipherKey {

}

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@Retention(value=RetentionPolicy.RUNTIME)
@Target(value=ElementType.FIELD)
public @interface CipherData {

}

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@Retention(value=RetentionPolicy.RUNTIME)
@Target(value=ElementType.FIELD)
public @interface CipherKey {

}

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@Retention(value=RetentionPolicy.RUNTIME)
@Target(value=ElementType.FIELD)
public @interface CipherData {

}

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public class CipherEntityListener {
	
	@PrePersist @PreUpdate
	@SuppressWarnings("unchecked")
	public void cipherEntityUsingMD5(Object entity) throws Exception {
		CipherHelper cipherHelper = null;
		String privateKey = null;
		String recordData = null;
		StringBuffer sb = null;
		Class classType = null;

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@Entity
@Table(name="tab_cliente")
@SuppressWarnings("serial")
@EntityListeners(CipherEntityListener.class)
public class Cliente implements Serializable {
	
	@Id
	@Column(name="cod_cliente")
	@GeneratedValue(strategy=GenerationType.IDENTITY)
	private int codigo;

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package xxx.yyy.zzz;

import java.io.Serializable;

@SuppressWarnings("serial")
public class PedidoMultiplicacao implements Serializable {

	private int a;
	private int b;

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package xxx.yyy.zzz;

import java.io.Serializable;

@SuppressWarnings("serial")
public class ResultadoMultiplicacao implements Serializable {
	
	private int valor;

	public int getValor() {