NullPointerException

Type Exception Report

Message Cannot invoke "String.length()" because "text" is null

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

java.lang.NullPointerException: Cannot invoke "String.length()" because "text" is null java.base/java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1474) java.base/java.text.DateFormat.parse(DateFormat.java:397) br.com.alura.gerenciador.servlet.AlteraEmpresaServlet.doPost(AlteraEmpresaServlet.java:30) javax.servlet.http.HttpServlet.service(HttpServlet.java:681) javax.servlet.http.HttpServlet.service(HttpServlet.java:764) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

1. @WebServlet("/alteraEmpresa") public class AlteraEmpresaServlet extends HttpServlet { private static final long serialVersionUID = 1L;

   protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

   System.out.println("Alterando empresa");
   
   String nomeEmpresa = request.getParameter("nome");
   String paramDataEmpresa = request.getParameter("data");
   String paramId = request.getParameter("id");
   Integer id = Integer.valueOf(paramId);
   
   Date dataAbertura = null;
   try {
       SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
       dataAbertura = sdf.parse(paramDataEmpresa);
   } catch (ParseException e) {
       throw new ServletException(e);
   }
   
   System.out.println(id);
   
   Banco banco = new Banco();
   Empresa empresa = banco.buscaEmpresaPelaId(id);
   empresa.setNome(nomeEmpresa);
   empresa.setDataAbertura(dataAbertura);
   
   response.sendRedirect("listaEmpresas");

   }

}