Netbeans + Webservices JAX-WS + WSGEN

Ola amigos,

alguém sabe me dizer o porque desses warning ?  isto acontece quando gero o wsdl para meus serviços,  esses alertas são de um objeto que é utilizado dentro do método de serviço, tenho outros serviços e não tenho esses warning, é como se para esta classe ele não encontrasse as classes do javax.persistence, alguem ja teve isto ? segue o log abraços.

C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'name()' in type 'Entity': class file for javax.persistence.Entity not found C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'strategy()' in type 'GeneratedValue': class file for javax.persistence.GeneratedValue not found warning: unknown enum constant GenerationType.AUTO reason: class file for javax.persistence.GenerationType not found C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'name()' in type 'Column': class file for javax.persistence.Column not found C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'length()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'name()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'length()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'name()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'length()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'name()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'length()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'name()' in type 'Column' C:\Projeto\egt\egt-ejb\build\classes\br\com\egt\entity\ConsultaEgt.class: warning: Cannot find annotation method 'length()' in type 'Column'