Ajuda Hibernate plzz!

package com.consensus.bean.entity;

import java.io.Serializable;
import java.util.Date;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Lob;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToOne;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;

import com.consensus.util.Format;

@Entity
@Table(name = "USUARIOS")
@SequenceGenerator(name = "seq", sequenceName = "S_USUARIOS")
@NamedQueries( { @NamedQuery(name = "checkLogin", query = "select c from UsuarioEntity c where c.senha = :senha and c.login = :login") })
public class UsuarioEntity implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = -7891796436766731118L;

	private Long idUsuario;

	@Column(name = "APELIDO")
	private String login;

	@Column(name = "CREDITOS")
	private String creditos;

	@Column(name = "DATA_CADASTRO")
	private Date dataCadastro;

	@Column(name = "DATA_ULTIMO_ACESSO")
	private Date dataUltimoAcesso;

	@Lob
	@Column(name = "FOTO")
	private byte[] foto;

	@Column(name = "NOME")
	private String nome;

	@Column(name = "SENHA")
	private String senha;

	private EnderecoEntity endereco;

	@Id
	@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq")
	public Long getIdUsuario() {
		return idUsuario;
	}

	public void setIdUsuario(Long idUsuario) {
		this.idUsuario = idUsuario;
	}

	public String getLogin() {
		return login;
	}

	public void setLogin(String login) {
		this.login = Format.getNome(login);
	}

	public String getCreditos() {
		return creditos;
	}

	public void setCreditos(String creditos) {
		this.creditos = Format.getNome(creditos);
	}

	public Date getDataCadastro() {
		return dataCadastro;
	}

	public void setDataCadastro(Date dataCadastro) {
		this.dataCadastro = dataCadastro;
	}

	public Date getDataUltimoAcesso() {
		return dataUltimoAcesso;
	}

	public void setDataUltimoAcesso(Date dataUltimoAcesso) {
		this.dataUltimoAcesso = dataUltimoAcesso;
	}

	public byte[] getFoto() {
		return foto;
	}

	public void setFoto(byte[] foto) {
		this.foto = foto;
	}

	public String getNome() {
		return nome;
	}

	public void setNome(String nome) {
		this.nome = Format.getNome(nome);
	}

	public String getSenha() {
		return senha;
	}

	public void setSenha(String senha) {
		this.senha = senha;
	}

	@OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "usuario")
	public EnderecoEntity getEndereco() {
		return endereco;
	}

	public void setEndereco(EnderecoEntity endereco) {
		this.endereco = endereco;
	}

}

<!DOCTYPE hibernate-configuration PUBLIC
	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
	"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
	<session-factory>
		<!--  
		<property name="hibernate.connection.url">
			jdbc:mysql://localhost/teste
		</property>
		-->
		<property name="hibernate.connection.url">
			jdbc:hsqldb:hsql://localhost/consensus
		</property>

		<!--  
			<property name="hibernate.connection.driver_class">
			com.mysql.jdbc.Driver
		</property>
		-->
		<property name="hibernate.connection.driver_class">
			org.hsqldb.jdbcDriver
		</property>

		<!-- <property name="hibernate.dialect">
			org.hibernate.dialect.MySQLDialect
		</property>
		-->
		<property name="hibernate.dialect">
			org.hibernate.dialect.HSQLDialect
		</property>
		<property name="hibernate.connection.username">sa</property>
		<property name="hibernate.connection.password"></property>

		<property name="hibernate.show_sql">true</property>
		<property name="hibernate.format_sql">true</property>

		<property name="hibernate.c3p0.min_size">5</property>
		<property name="hibernate.c3p0.max_size">20</property>
		<property name="hibernate.c3p0.timeout">180</property>
		<property name="hibernate.c3p0.idle_test_period">100</property>

		<property name="hibernate.cache.provider_class">
			org.hibernate.cache.EhCacheProvider
			</property>
		
		<mapping class="com.consensus.bean.entity.EnderecoEntity" />
		<mapping class="com.consensus.bean.entity.MunicipioEntity" />
		<mapping class="com.consensus.bean.entity.PaisEntity" />
		<mapping class="com.consensus.bean.entity.UfEntity" />
		<mapping class="com.consensus.bean.entity.UsuarioEntity" />

	</session-factory>
</hibernate-configuration>