[RESOLVIDO] Erro mapeamento OneToMany

Olá,

Provavelmente alguém aqui já viu esse erro, é o seguinte, tenho uma entidade Person e uma entidade Media, acontece que somente no servidor, quando tento buscar uma Media que está mapeada para o Person (um Person pode ter várias Media's), está me dando esse erro:

type Exception report

message

descriptionThe server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: 
Exception Description: This class does not define a public default constructor, or the constructor raised an exception.
Internal Exception: java.lang.InstantiationException
Descriptor: RelationalDescriptor(br.com.radio.demais.model.Media --> [DatabaseTable(MEDIA)])
root cause

Exception [EclipseLink-34] (Eclipse Persistence Services - 2.0.0.v20091127-r5931): org.eclipse.persistence.exceptions.DescriptorException
Exception Description: This class does not define a public default constructor, or the constructor raised an exception.
Internal Exception: java.lang.InstantiationException
Descriptor: RelationalDescriptor(br.com.radio.demais.model.Media --> [DatabaseTable(MEDIA)])
root cause

java.lang.InstantiationException

Acontece que nos outros computadores de desenvolvimento não ocorre erro nenhum, não estou sabendo como posso solucionar o problema. Quando busco o Person sem Media funciona normal, quando busco Media com Person também não dá erro.

Obs: Estou usando EclipseLink + Glassfish com EJB.

Já tentei de tudo, e sequer consigo mapear o que está acontecendo. Se alguém puder me dar um norte eu agradeço.

Já procurei no google, e só encontro "é um bug do EclipseLink", mas acho que se fosse, funcionaria da mesma forma no meu server e nos meus ambientes de desenvolvimento. Acredito que exista a possibilidade de o netbeans está injetando alguma biblioteca no server, que ele diretamente não tem, se alguém souber pode me avisar?

Então, o construtor existe:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package br.com.radio.demais.model;

import java.io.Serializable;
import java.math.BigInteger;
import java.util.Set;
import javax.persistence.Basic;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import org.eclipse.persistence.annotations.Cache;
import org.eclipse.persistence.annotations.CacheCoordinationType;
import org.eclipse.persistence.annotations.CacheType;
import org.eclipse.persistence.config.CacheIsolationType;

/**
 *
 * @author everton
 */
@Entity
@Table(name = "person")
 @Cache (
     type=CacheType.WEAK,
     isolation= CacheIsolationType.SHARED,
     expiry=-1,
     coordinationType= CacheCoordinationType.INVALIDATE_CHANGED_OBJECTS
     )
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "Person.findAll", query = "SELECT p FROM Person p"),
    @NamedQuery(name = "Person.findById", query = "SELECT p FROM Person p WHERE p.id = :id"),
    @NamedQuery(name = "Person.findByName", query = "SELECT p FROM Person p WHERE p.name = :name"),
    @NamedQuery(name = "Person.findByContent", query = "SELECT p FROM Person p WHERE p.content = :content"),
    @NamedQuery(name = "Person.findByType", query = "SELECT p FROM Person p WHERE p.type = :type")
})
public class Person implements Serializable {
    private static final long serialVersionUID = 1L;
    public static final int TEAM = 2;
    public static final int ARTIST = 1;
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id")
    private Integer id;
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 30)
    @Column(name = "name")
    private String name;
    @Size(max = [telefone removido])
    @Column(name = "content")
    private String content;
    @Basic(optional = false)
    @NotNull
    @Column(name = "type")
    private int type;
    @Column(name = "image")
    private String image;
    @OneToMany(cascade = CascadeType.ALL, mappedBy = "person")
    private Set<Media> mediaSet;

    public Person() {
    }

    public Person(Integer id) {
        this.id = id;
    }

    public Person(Integer id, String name, int type) {
        this.id = id;
        this.name = name;
        this.type = type;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public int getType() {
        return type;
    }

    public void setType(int type) {
        this.type = type;
    }

    @XmlTransient
    public Set<Media> getMediaSet() {
        return mediaSet;
    }

    public void setMediaSet(Set<Media> mediaSet) {
        this.mediaSet = mediaSet;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Person)) {
            return false;
        }
        Person other = (Person) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return getName();
    }

    public String getImage() {
        return image;
    }

    public void setImage(String image) {
        this.image = image;
    }
    
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package br.com.radio.demais.model;

import java.io.Serializable;
import javax.activation.MimetypesFileTypeMap;
import java.io.File;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;

/**
 *
 * @author everton
 */
@Entity
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "Media.findAll", query = "SELECT m FROM Media m"),
    @NamedQuery(name = "Media.findById", query = "SELECT m FROM Media m WHERE m.id = :id"),
    @NamedQuery(name = "Media.findByName", query = "SELECT m FROM Media m WHERE m.name = :name"),
    @NamedQuery(name = "Media.findByAddressUpload", query = "SELECT m FROM Media m WHERE m.addressUpload = :addressUpload")})
public abstract class Media implements Serializable {

    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id")
    private Integer id;
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 100)
    @Column(name = "name")
    private String name;
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 500)
    @Column(name = "address_upload")
    private String addressUpload;
    @JoinColumn(name = "id_person", referencedColumnName = "id")
    @ManyToOne(optional = true)
    private Person person;

    
    public Media() {
    }

    public Media(Integer id) {
        this.id = id;
    }

    public Media(Integer id, String name, String addressUpload) {
        this.id = id;
        this.name = name;
        this.addressUpload = addressUpload;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
        
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAddressUpload() {
        return addressUpload;
    }

    public void setAddressUpload(String addressUpload) {
        this.addressUpload = addressUpload;
    }

    public Person getPerson() {
        return person;
    }

    public void setPerson(Person person) {
        this.person = person;
    }
    
    public String getExtension(){
        return getAddressUpload().substring(getAddressUpload().lastIndexOf(".")+1);
    }
    
    public String getMimeType(){
        
        return new MimetypesFileTypeMap().getContentType(new File(getPath()+"/"+getAddressUpload()));
        
        
    }

    public abstract String getPath();
    
    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        
        if (!(object instanceof Media)) {
            return false;
        }
        
        Media other = (Media) object;
        
        if(this.id != null && other.id != null)
            return this.id==other.id;
        
        if(this.addressUpload!=null && other.addressUpload!=null)
            return this.addressUpload.equals(other.addressUpload);
        
        return true;
    }

    @Override
    public String toString() {
        return getAddressUpload();
    }


}

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