iReport will no load class (int)?!

[fmcypriano]

Hello,

I'm doing a report to test my new Hibernate connection and when I click Preview I get this, very strange, error:

net.sf.jasperreports.engine.design.JRValidationException: Report design not valid :       1. java.lang.ClassNotFoundException: Will not load classes from default package (int)      2. java.lang.ClassNotFoundException: Will not load classes from default package (boolean)      3. java.lang.ClassNotFoundException: Will not load classes from default package (boolean)      4. java.lang.ClassNotFoundException: Will not load classes from default package (boolean)

 

This errors refer to the following fields in mapping class:

1.     @Id
       @GeneratedValue(strategy = GenerationType.SEQUENCE,
           generator = "SequencePedidoVenda")
       @Min(0)
       private int id;
2.     @Transient
       private boolean itensWithErros;
3.     @Column(name="LANCADO_ESTOQUE")
       @Type(type="SimNaoChar")
       private boolean lancadoEstoque;
4.     @Column(name="LANCADO_ESTOQUE_PROGRAMADO")
       @Type(type="SimNaoChar")
       private boolean lancadoEstoqueProgramado;

Why iReport is complaing about java.lang classes?

[fmcypriano]

Why the wrapper classes aren't used automatically?