XML : Java Rest Service XML Request syntactically incorrect

I am new to web services. I am building an android app and I'm trying to send a post request to the web service but I'm not sure what the correct format is.

Can I send it in XML type, do I have to modify the POST method in order to access it from my app?

This is the POST method in the REST:

  @POST  @Override  @Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON,MediaType.TEXT_XML})  public void create(Users entity) {      super.create(entity);  }    

This is the class that corresponds to our table. I am using Oracle 11g database, Glassfish server 4.1.1 and Netbeans. I am trying to call PUT from my android application. Can someone suggest a way to do that?

  import java.io.Serializable;  import javax.persistence.Basic;   import javax.persistence.CascadeType;  import javax.persistence.Column;  import javax.persistence.Entity;  import javax.persistence.Id;  import javax.persistence.NamedQueries;  import javax.persistence.NamedQuery;  import javax.persistence.OneToOne;  import javax.persistence.Table;  import javax.validation.constraints.NotNull;  import javax.validation.constraints.Size;  import javax.xml.bind.annotation.XmlRootElement;    @Entity  @Table(name = "USERS")  @XmlRootElement  @NamedQueries({  @NamedQuery(name = "Users.findAll", query = "SELECT u FROM Users u"),  @NamedQuery(name = "Users.findByUserId", query = "SELECT u FROM Users u WHERE u.userId = :userId"),  @NamedQuery(name = "Users.findByUsername", query = "SELECT u FROM Users u WHERE u.username = :username"),  @NamedQuery(name = "Users.findByPassword", query = "SELECT u FROM Users u WHERE u.password = :password"),  @NamedQuery(name = "Users.findByEmail", query = "SELECT u FROM Users u WHERE u.email = :email")})      public class Users implements Serializable {    private static final long serialVersionUID = 1L;  @Id  @Basic(optional = false)  @NotNull  @Column(name = "USER_ID")  private Short userId;  @Basic(optional = false)  @NotNull  @Size(min = 1, max = 30)  @Column(name = "USERNAME")  private String username;  @Basic(optional = false)  @NotNull  @Size(min = 1, max = 20)  @Column(name = "PASSWORD")  private String password;    @Basic(optional = false)  @NotNull  @Size(min = 1, max = 40)  @Column(name = "EMAIL")  private String email;  @OneToOne(cascade = CascadeType.ALL, mappedBy = "users")  private Profiles profiles;    public Users() {  }    public Users(Short userId) {      this.userId = userId;  }    public Users(Short userId, String username, String password, String email) {      this.userId = userId;      this.username = username;      this.password = password;      this.email = email;  }    public Short getUserId() {      return userId;  }    public void setUserId(Short userId) {      this.userId = userId;  }    public String getUsername() {      return username;  }    public void setUsername(String username) {      this.username = username;  }    public String getPassword() {      return password;  }    public void setPassword(String password) {      this.password = password;  }    public String getEmail() {      return email;  }    public void setEmail(String email) {      this.email = email;  }    public Profiles getProfiles() {      return profiles;  }    public void setProfiles(Profiles profiles) {      this.profiles = profiles;  }    @Override  public int hashCode() {      int hash = 0;      hash += (userId != null ? userId.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 Users)) {          return false;      }      Users other = (Users) object;      if ((this.userId == null && other.userId != null) || (this.userId != null && !this.userId.equals(other.userId))) {          return false;      }      return true;  }    @Override  public String toString() {      return "medicalplanner.Users[ userId=" + userId + " ]";  }    }