Erro Upload Vraptor

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>xxxx</display-name>
  
  
  <context-param>
        <param-name>br.com.caelum.vraptor.packages</param-name>
        <param-value>br.com.caelum.vraptor.util.hibernate</param-value>
    
        <!-- you can add optional component packages here -->
    </context-param>
  
 
  
  
  <filter>
    <filter-name>vraptor</filter-name>
    <filter-class>br.com.caelum.vraptor.VRaptor</filter-class>
  </filter>
  
  
  <filter-mapping>
    <filter-name>vraptor</filter-name>
    <url-pattern>/*</url-pattern>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>REQUEST</dispatcher>
  </filter-mapping>

  
  
  <session-config>  
   <session-timeout>30</session-timeout>    
  </session-config>  
  
  
</web-app>

public void add(Midia midia, UploadedFile file){
		if(file != null){
			
			String nameFile = Math.abs(new Random().nextLong())+"_"+userCurrent.getUser().getLogin()+file.getFileName().substring(file.getFileName().lastIndexOf("."), file.getFileName().length());
			midia.setFile(nameFile);
			midia.setUser(userCurrent.getUser());
			midia.setDate(new Date());
			this.midiaDAO.save(midia);
			
			result.include("msg","O arquivo foi enviado com sucesso!"); // coloquei aqui a mensagem por causa do delay.
			
			Util.inputStreamToFile(file.getFile(),FILE_DIRECTORY+nameFile);
			
			sendEmail(midia);
		}
		
		result.redirectTo(MidiaController.class).form();
	}

@Component
public class MidiaDAO extends GenericDAO<Midia> {

	public MidiaDAO(Session session) {
		super(session);

	}

	public List<Midia> find(Midia midia, Date dataBegin, Date dataEnd) {
		Criteria criteria = session.createCriteria(Midia.class);
		
		criteria.createAlias("user", "u");
		criteria.add(Restrictions.between("date",dataBegin, Util.addDayDate(dataEnd, 1)));
		
	
		if (!midia.getUser().getCity().getId().equals(0L)) {		
			criteria.createAlias("u.city", "c");
			criteria.add(Restrictions.eq("c.id", midia.getUser().getCity()
					.getId()));
		}
		
		return criteria.list();

	}

}

<?xml version='1.0' encoding='utf-8'?>
<!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.dialect">org.hibernate.dialect.MySQLDialect</property>
		<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/xxxDB</property>
		<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="hibernate.connection.username">xxx</property>
		<property name="hibernate.connection.password">xxx</property>
		
             <property name="hibernate.connection.pool_size">30</property>

		<property name="hibernate.show_sql">false</property>
		<property name="hibernate.hbm2ddl.auto">update</property> 
		

 		<mapping class="br.com.xxx.midia.model.User" />
 		<mapping class="br.com.xxx.midia.model.Midia" />
 		<mapping class="br.com.xxx.midia.model.City" />


	</session-factory>

</hibernate-configuration>

public static void inputStreamToFile(InputStream byteStream, String pathFileName) {

		InputStream bStream = null;
		FileOutputStream fileOutStream = null;
		try {

			bStream = byteStream;

			fileOutStream = new FileOutputStream(pathFileName);

			byte[] buffer = new byte[10];
			int nbytes = 0; // Number of bytes read

			// file output stream
			while ((nbytes = bStream.read(buffer)) != -1) { // Read from

				fileOutStream.write(buffer, 0, nbytes); // Write to file stream
			}

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				bStream.close();
			} catch (Exception e) {
			}
			try {
				fileOutStream.close();
			} catch (Exception e) {
			}

		}

	}

<context-param>  
        <param-name>br.com.caelum.vraptor.packages</param-name>  
        <param-value>br.com.caelum.vraptor.util.hibernate</param-value>  
      
        <!-- you can add optional component packages here -->  
    </context-param>