java - Error using persist() -

i have code:

user.setfirstname(requ.getparameter("nombre")); user.setlastname(requ.getparameter("apellidos")); user.setemailaddress(requ.getparameter("email"));  user.persist(); 

and i'm getting error:

validation failed classes [com.springsource.marshall.domain.user] during persist time groups [javax.validation.groups.default, ] list of constraint violations:[ constraintviolationimpl{interpolatedmessage='no puede ser null', propertypath=emailaddress, rootbeanclass=class com.springsource.marshall.domain.user, messagetemplate='{javax.validation.constraints.notnull.message}'} constraintviolationimpl{interpolatedmessage='no puede ser null', propertypath=password, rootbeanclass=class com.springsource.marshall.domain.user, messagetemplate='{javax.validation.constraints.notnull.message}'} constraintviolationimpl{interpolatedmessage='no puede ser null', propertypath=firstname, rootbeanclass=class com.springsource.marshall.domain.user, messagetemplate='{javax.validation.constraints.notnull.message}'} ]

i tried:

user user = new user();

system.out.println(requ.getparameter("email")); system.out.println(requ.getparameter("nombre")); system.out.println(requ.getparameter("apellidos")); user.setfirstname(requ.getparameter("nombre")); user.setlastname(requ.getparameter("apellidos")); user.setemailaddress(requ.getparameter("email")); user.setpassword("poruesadf"); system.out.println("user:"+user); user.persist();

and get:

myemail@hotmail.com myfirstname mylastname set firstname user, nombre:user[firstname=,lastname=,emailaddress=,password=,activationdate=,activationkey=,enabled=,locked=,id=,version=,clientes=,incidencias=,userroles=,empresaid=]

i don't know why user has parameter null...

here user_roo_dbmanaged.aj:

// warning: not edit file. file managed spring roo. // may push code target .java compilation unit if wish edit member(s).  package com.springsource.marshall.domain;  import com.springsource.marshall.domain.cliente; import com.springsource.marshall.domain.empresa; import com.springsource.marshall.domain.incidencia; import com.springsource.marshall.domain.user; import com.springsource.marshall.domain.userrole; import java.util.date; import java.util.set; import javax.persistence.column; import javax.persistence.joincolumn; import javax.persistence.manytoone; import javax.persistence.onetomany; import javax.persistence.temporal; import javax.persistence.temporaltype; import org.springframework.format.annotation.datetimeformat;  privileged aspect user_roo_dbmanaged {      @onetomany(mappedby = "userid")     private set<cliente> user.clientes;      @onetomany(mappedby = "userid")     private set<incidencia> user.incidencias;      @onetomany(mappedby = "userentry")     private set<userrole> user.userroles;      @manytoone     @joincolumn(name = "empresa_id", referencedcolumnname = "id")     private empresa user.empresaid;      @column(name = "firstname", length = 99, insertable=false,updatable=false)     private string user.firstname;      @column(name = "lastname", length = 30, insertable=false,updatable=false)     private string user.lastname;      @column(name = "password", length = 100, insertable=false,updatable=false)     private string user.password;      @column(name = "emailaddress", length = 45, insertable=false,updatable=false)     private string user.emailaddress;       @column(name = "activationdate", insertable=false,updatable=false)     @temporal(temporaltype.date)     @datetimeformat(style = "m-")     private date user.activationdate;      @column(name = "activationkey", length = 45, insertable=false,updatable=false)     private string user.activationkey;      @column(name = "enabled", insertable=false,updatable=false)     private boolean user.enabled;      @column(name = "locked", insertable=false,updatable=false)     private boolean user.locked;      public set<cliente> user.getclientes() {         return clientes;     }      public void user.setclientes(set<cliente> clientes) {         this.clientes = clientes;     }      public set<incidencia> user.getincidencias() {         return incidencias;     }      public void user.setincidencias(set<incidencia> incidencias) {         this.incidencias = incidencias;     }      public set<userrole> user.getuserroles() {         return userroles;     }      public void user.setuserroles(set<userrole> userroles) {         this.userroles = userroles;     }      public empresa user.getempresaid() {         return empresaid;     }      public void user.setempresaid(empresa empresaid) {         this.empresaid = empresaid;     }      public string user.getfirstname() {         return firstname;     }      public void user.setfirstname(string firstname) {         this.firstname = firstname;     }      public string user.getlastname() {         return lastname;     }      public void user.setlastname(string lastname) {         this.lastname = lastname;     }      public string user.getpassword() {         return password;     }      public void user.setpassword(string password) {         this.password = password;     }      public string user.getemailaddress() {         return emailaddress;     }      public void user.setemailaddress(string emailaddress) {         this.emailaddress = emailaddress;     }      public date user.getactivationdate() {         return activationdate;     }      public void user.setactivationdate(date activationdate) {         this.activationdate = activationdate;     }      public string user.getactivationkey() {         return activationkey;     }      public void user.setactivationkey(string activationkey) {         this.activationkey = activationkey;     }      public boolean user.getenabled() {         return enabled;     }      public void user.setenabled(boolean enabled) {         this.enabled = enabled;     }      public boolean user.getlocked() {         return locked;     }      public void user.setlocked(boolean locked) {         this.locked = locked;     }  } 

does have possible solution?

thanks!!