HTTP Status 503

Pessoal, estou começando a desenvolver uma aplicação para web agora, estou usando JEE5 e GlassFish 2.1, estava tudo rodando, até eu criar um servlet, depois disso, começou a aparecer esse erro:

[b]HTTP Status 503 -

type Status report

message

descriptionThe requested service () is not currently available.[/b]

Nao sei onde está o erro, nao sei se eh alguma exceção no meu servlet novo.
O servlet que eu fiz, e coloquei dentro do modulo WAR, esta assim:

[quote]
package servlets;

import entidades.Funcionario;

import facades.FuncionarioFacadeRemote;

import java.io.IOException;

import java.io.PrintWriter;

import javax.ejb.EJB;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class FuncionarioServlet extends HttpServlet {

@EJB

private FuncionarioFacadeRemote manager;

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();
    try
    {

        String  nome = "Teste";                   //VARCHAR(60) NOT NULL
        String  endereco = "Teste";               //VARCHAR(60)
        String  numero = "123";                 //VARCHAR(10)
        String  complemento = "casa";            //VARCHAR(30)
        String  bairro ="centro";                 //VARCHAR(20)
        String  cidade ="Friburgo";                 //VARCHAR(40)
        int     ufCodigo = 19;              //INTEGER NOT NULL
        String  cep = "28600000";                    //VARCHAR(9)
        int     dddTel1 = 22;               //INTEGER
        int     telefone1 = 25230975;              //INTEGER
        int     dddTel2 = 0;               //INTEGER
        int     telefone2 = 0;              //INTEGER
        int     dddCel1 = 22;               //INTEGER
        int     celular1 = 92039785;               //INTEGER
        int     dddCel2 = 0;               //INTEGER
        int     celular2 = 0;               //INTEGER
        String  email1 ="[email removido]";                 //VARCHAR(30)
        String  email2 = null;                 //VARCHAR(30)
        String  lattes = null;                 //VARCHAR(30)
        int     siape = 1657922;                  //INTEGER
        int     cargoCodigo = 11;           //INTEGER NOT NULL
        int     funcaoCodigo = 1;          //INTEGER NOT NULL
        int     setorCodigo = 1;           //INTEGER NOT NULL
        int     tipoFuncionarioCodigo = 1;//INTEGER NOT NULL
        int     instituicaoCodigo = 1;     //INTEGER NOT NULL
        //int   foto_codigo;            //INTEGER NOT NULL

        String  obs = null;                    //VARCHAR
       
        Funcionario funcionario = new Funcionario(
                nome,
                endereco,
                numero,
                complemento,
                bairro,
                cidade,
                cep,
                dddTel1,
                telefone1,
                dddTel2,
                telefone2,
                dddCel1,
                celular1,
                dddCel2,
                celular2,
                email1,
                email2,
                lattes,
                siape,
                obs
                );

          manager.create(funcionario);
        
    }
    finally
    {
        out.close();
    }
} 

// <editor-fold defaultstate="collapsed" desc="Métodos HttpServlet. Clique no sinal de + à esquerda para editar o código.">
/** 
 * Handles the HTTP <code>GET</code> method.
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
    processRequest(request, response);
} 

/** 
 * Handles the HTTP <code>POST</code> method.
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
    processRequest(request, response);
}

/** 
 * Returns a short description of the servlet.
 * @return a String containing servlet description
 */
@Override
public String getServletInfo() {
    return "Short description";
}// </editor-fold>

}

Acabei de fazer um p vc:

No web.xml

&lt;servlet&gt;
		&lt;servlet-name&gt;SevletGuj&lt;/servlet-name&gt;
		&lt;servlet-class&gt;br.com.sevlet.TestGujServlet&lt;/servlet-class&gt;
	&lt;/servlet&gt;
	
	&lt;servlet-mapping&gt;
		&lt;servlet-name&gt;SevletGuj&lt;/servlet-name&gt;
		&lt;url-pattern&gt;/ServletGuj&lt;/url-pattern&gt;
	&lt;/servlet-mapping&gt;

Classe:

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class TestGujServlet extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		System.out.println("Passou Get");
	}
	
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		System.out.println("Passou Post");
	}
	
}

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