Использование сгенерированных JPA классов Entity в качестве библиотеки классов в Android

Я работаю над клиент-серверным приложением. на стороне сервера я создал свою модель данных объекта с JPA2.0 и EclipseLink в качестве поставщика. вот один из классов

@Entity
@Table(name = "Customers")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "Customers.findAll", query = "SELECT c FROM Customers c")})
public class Customers implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id 
    @Basic(optional = false)
    @Column(name = "SerialNoCST")
    private Integer serialNoCST;
    @Basic(optional = false)
    @Column(name = "SerialNOCSTSGLCST")
    private int serialNOCSTSGLCST;
    @Column(name = "NameGrpCST")
    private String nameGrpCST;
    @Column(name = "CodeCST")
    private String codeCST;
    @Column(name = "NameCST")
    private String nameCST;
    @Column(name = "AddressCST")
    private String addressCST;
    @Column(name = "TelCST")
    private String telCST;
    @Column(name = "DebtCredit")
    private Long debtCredit;
    @Column(name = "DocCredit")
    private Long docCredit;
    @Column(name = "CshCredit")
    private Long cshCredit;
    @Column(name = "DebtValue")
    private Long debtValue;
    @Column(name = "ClassNoCST")
    private String classNoCST;
    @Column(name = "PasCheqAmntCST")
    private Integer pasCheqAmntCST;
    @Column(name = "NPasBillValueCST")
    private Long nPasBillValueCST;
    @Column(name = "NPasBillAmntCST")
    private Integer nPasBillAmntCST;
    // @Max(value=?)  @Min(value=?)//if you know range of your decimal fields consider using these annotations to enforce field validation
    @Column(name = "MapXCst")
    private Float mapXCst;
    @Column(name = "MapYCst")
    private Float mapYCst;
    @Column(name = "MapImgCst")
    private Integer mapImgCst;
    @Basic(optional = false)
    @Column(name = "LastModified")
    @Temporal(TemporalType.TIMESTAMP)
    private Date lastModified;
    @Basic(optional = false)
    @Column(name = "IsDeleted")
    private boolean isDeleted;
    @Basic(optional = false)
    @Column(name = "RowID")
    private String rowID;
    @Basic(optional = false)
    @Column(name = "SerialNoDev")
    private int serialNoDev;

    public Customers() {
    }

    public Customers(Integer serialNoCST) {
        this.serialNoCST = serialNoCST;
    }

    public Customers(Integer serialNoCST, int serialNOCSTSGLCST, Date lastModified, boolean isDeleted, String rowID, int serialNoDev) {
        this.serialNoCST = serialNoCST;
        this.serialNOCSTSGLCST = serialNOCSTSGLCST;
        this.lastModified = lastModified;
        this.isDeleted = isDeleted;
        this.rowID = rowID;
        this.serialNoDev = serialNoDev;
    }

    public Integer getSerialNoCST() {
        return serialNoCST;
    }

    public void setSerialNoCST(Integer serialNoCST) {
        this.serialNoCST = serialNoCST;
    }

    public int getSerialNOCSTSGLCST() {
        return serialNOCSTSGLCST;
    }

    public void setSerialNOCSTSGLCST(int serialNOCSTSGLCST) {
        this.serialNOCSTSGLCST = serialNOCSTSGLCST;
    }

    public String getNameGrpCST() {
        return nameGrpCST;
    }

    public void setNameGrpCST(String nameGrpCST) {
        this.nameGrpCST = nameGrpCST;
    }

    public String getCodeCST() {
        return codeCST;
    }

    public void setCodeCST(String codeCST) {
        this.codeCST = codeCST;
    }

    public String getNameCST() {
        return nameCST;
    }

    public void setNameCST(String nameCST) {
        this.nameCST = nameCST;
    }

    public String getAddressCST() {
        return addressCST;
    }

    public void setAddressCST(String addressCST) {
        this.addressCST = addressCST;
    }

    public String getTelCST() {
        return telCST;
    }

    public void setTelCST(String telCST) {
        this.telCST = telCST;
    }

    public Long getDebtCredit() {
        return debtCredit;
    }

    public void setDebtCredit(Long debtCredit) {
        this.debtCredit = debtCredit;
    }

    public Long getDocCredit() {
        return docCredit;
    }

    public void setDocCredit(Long docCredit) {
        this.docCredit = docCredit;
    }

    public Long getCshCredit() {
        return cshCredit;
    }

    public void setCshCredit(Long cshCredit) {
        this.cshCredit = cshCredit;
    }

    public Long getDebtValue() {
        return debtValue;
    }

    public void setDebtValue(Long debtValue) {
        this.debtValue = debtValue;
    }

    public String getClassNoCST() {
        return classNoCST;
    }

    public void setClassNoCST(String classNoCST) {
        this.classNoCST = classNoCST;
    }

    public Integer getPasCheqAmntCST() {
        return pasCheqAmntCST;
    }

    public void setPasCheqAmntCST(Integer pasCheqAmntCST) {
        this.pasCheqAmntCST = pasCheqAmntCST;
    }

    public Long getNPasBillValueCST() {
        return nPasBillValueCST;
    }

    public void setNPasBillValueCST(Long nPasBillValueCST) {
        this.nPasBillValueCST = nPasBillValueCST;
    }

    public Integer getNPasBillAmntCST() {
        return nPasBillAmntCST;
    }

    public void setNPasBillAmntCST(Integer nPasBillAmntCST) {
        this.nPasBillAmntCST = nPasBillAmntCST;
    }

    public Float getMapXCst() {
        return mapXCst;
    }

    public void setMapXCst(Float mapXCst) {
        this.mapXCst = mapXCst;
    }

    public Float getMapYCst() {
        return mapYCst;
    }

    public void setMapYCst(Float mapYCst) {
        this.mapYCst = mapYCst;
    }

    public Integer getMapImgCst() {
        return mapImgCst;
    }

    public void setMapImgCst(Integer mapImgCst) {
        this.mapImgCst = mapImgCst;
    }

    public Date getLastModified() {
        return lastModified;
    }

    public void setLastModified(Date lastModified) {
        this.lastModified = lastModified;
    }

    public boolean getIsDeleted() {
        return isDeleted;
    }

    public void setIsDeleted(boolean isDeleted) {
        this.isDeleted = isDeleted;
    }

    public String getRowID() {
        return rowID;
    }

    public void setRowID(String rowID) {
        this.rowID = rowID;
    }

    public int getSerialNoDev() {
        return serialNoDev;
    }

    public void setSerialNoDev(int serialNoDev) {
        this.serialNoDev = serialNoDev;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (serialNoCST != null ? serialNoCST.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 Customers)) {
            return false;
        }
        Customers other = (Customers) object;
        if ((this.serialNoCST == null && other.serialNoCST != null) || (this.serialNoCST != null && !this.serialNoCST.equals(other.serialNoCST))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "com.prs.model.Customers[ serialNoCST=" + serialNoCST + " ]";
    }

}

В качестве обычного действия я поместил все свои классы сущностей с файлом persistence.xml в файл jar и добавил в другой проект, который будет обеспечивать грубые операции с этими классами сущностей в качестве методов отдыха.

После этого я также добавил файл jar модели в проект Android, но во время выполнения я получил слишком много ошибок.

Я хочу, чтобы ты помог мне узнать:

1- Можно ли добавить файл jar моей модели объекта в проект Android? 2- Я собирался написать свой собственный слой DAO с этим файлом jar, есть ли конфликт с использованием моих классов сущностей и ContentProvider Android API. 3- есть ли проблемы со структурой, которую я выбрал?

РЕДАКТИРОВАТЬ: добавить трассировку стека ошибок

2012-12-13 11:23:28 - MobileAndroidSolution] Dx 
trouble processing "javax/xml/stream/EventFilter.class":

Ill-advised or mistaken usage of a core class (java.* or javax.*)
when not building a core library.

This is often due to inadvertently including a core library file
in your application's project, when using an IDE (such as
Eclipse). If you are sure you're not intentionally defining a
core class, then this is the most likely explanation of what's
going on.

However, you might actually be trying to define a class in a core
namespace, the source of which you may have taken, for example,
from a non-Android virtual machine project. This will most
assuredly not work. At a minimum, it jeopardizes the
compatibility of your app with future versions of the platform.
It is also often of questionable legality.

If you really intend to build a core library -- which is only
appropriate as part of creating a full virtual machine
distribution, as opposed to compiling an application -- then use
the "--core-library" option to suppress this error message.

If you go ahead and use "--core-library" but are in fact
building an application, then be forewarned that your application
will still fail to build or run, at some point. Please be
prepared for angry customers who find, for example, that your
application ceases to function once they upgrade their operating
system. You will be to blame for this problem.

If you are legitimately using some code that happens to be in a
core package, then the easiest safe alternative you have is to
repackage that code. That is, move the classes in question into
your own package namespace. This means that they will never be in
conflict with core system classes. JarJar is a tool that may help
you in this endeavor. If you find that you cannot do this, then
that is an indication that the path you are on will ultimately
lead to pain, suffering, grief, and lamentation.

[2012-12-13 11:23:28 - MobileAndroidSolution] Dx 1 error; aborting
[2012-12-13 11:23:28 - MobileAndroidSolution] Conversion to Dalvik format failed with error 1

заранее спасибо.