Modify Value Of A Bean And Collect It In Another Different Class

Good morning everyone

(Summary at the end) I'm trying to pass a list of maps from one class to another using a bean with XML configuration:

<bean id="listParamJob"
      class="java.util.ArrayList">
</bean>

Here is where I put the value:

    private void crearBoton() {

        NativeButton botonSimple = new NativeButton("Guardar Consulta");
        botonSimple.setIcon(FontAwesome.CLOUD_UPLOAD);

        botonSimple.addClickListener((Button.ClickEvent e) -> {

            String consulta = areaConsultas.getValue();

            paramsLista = (ArrayList<HashMap<String,String>>) context.getBean("listParamJob");
            paramsLista = extraerSelect(consulta);

            crearNotificacion("Éxito", "Consulta Guardada", Notification.Type.HUMANIZED_MESSAGE);
        });

        this.addComponent(botonSimple);
    }

areaConsultas is a TextArea below I put the method of extractSelect:

private ArrayList<HashMap<String, String>> extraerSelect(String consultaEntera) {
        String[] consultasArray = consultaEntera.split("\n");

        String consultasSpliteadas = Arrays.toString(consultasArray);

        System.out.println(consultasSpliteadas);

        ArrayList<HashMap<String, String>> listaMapas = new ArrayList<>();
        HashMap<String, String> mapaConsulta;

        int contadorConsulta = 0;
        for (String cadenaSacada : consultasArray) {
            mapaConsulta = new HashMap<>();

            StringTokenizer st = new StringTokenizer(cadenaSacada);

            int contador = 0;
            while (st.hasMoreElements()) {
                String tokenSacado = st.nextElement().toString();
                if (contador == 1) {
                    mapaConsulta.put("sql.consulta", consultasArray[contadorConsulta]);
                    mapaConsulta.put("sql.select", tokenSacado);
                    System.out.println(tokenSacado);
                    break;
                }
                contador++;
            }
            contadorConsulta++;
            listaMapas.add(mapaConsulta);
        }
        return listaMapas;
    }

and when from another class I try to call this list it gives me that it has nothing.

I already checked with the debug that in the previous classes the Hashmap is added to the list so it is not empty I'll put you where I get the value of the list (which says it's empty):

public void crearJob() {

    context = ApplicationContextProvider.getApplicationContext();
    listaMapasParams = (ArrayList<HashMap<String, String>>) context.getBean("listParamJob");

    boolean exito = true;

    Job job = (Job) context.getBean("consultaResultJob");

    JobParameters parametros = null;
    JobExecution execution = null;

    annadirCadenas("Creando Job: " + job.getName());
    int contadorMapas = 0;

    // -----------------------------------------------------
    // Aqui es donde leo listaMapasParams, pero como es de longitud 0 no hace nada 
    // -----------------------------------------------------
    for (HashMap<String, String> mapaSacado : listaMapasParams) {

        try {
            parametros = crearParametrosJob(mapaSacado, contadorMapas);
        } catch (ConsultaNoDefinidaException ex) {
            String ERROR = "Error: No Hay Una Consulta Definida";
            LOG.warning(ERROR);
            annadirCadenas(ERROR);
            exito = false;
        }

        annadirCadenas("Pasando Parámetros Al Job");

        if (parametros == null) {
            annadirCadenas("No Se pudo Ejecutar El Job Debido A Que No Hay Definida Ninguna Consulta");
        } else {

            try {
                annadirCadenas("Ejecutando Job Con Los Siguientes Parámetros: \n" + parametros.toString());
                execution = ((JobLauncher) context.getBean("jobLauncher")).run(job, parametros);
                LOG.log(Level.INFO, "Job Estado De Finalizaci\u00f3n : {0}", execution.getStatus());
                annadirCadenas("Job Finalizado, Estado: " + execution.getStatus());
            } catch (JobExecutionException jee) {
                LOG.log(Level.WARNING, "Job: " + job.getName() + " Fall\u00f3 , Raz\u00f3n:{0}", jee.getMessage());
            }
        }

        if ((exito) && (execution != null)) {
            crearNotificacion("Éxito", "Job Ejecutado Con Éxito", Notification.Type.HUMANIZED_MESSAGE);
        } else {
            crearNotificacion("Fallo", "Falló La Ejecución Del Job", Notification.Type.ERROR_MESSAGE);
        }

        System.out.println("Contador:" + contador);
        contador = contador + 1;
        System.out.println("Contador Despues:" + contador);

        contadorMapas++;
    }
    contador = 0;
}

I put in the two classes:

@Component
@Scope("step")

In continuation, I explain what the program does:

I use vaadin for the graphical interface, Spring boot and Spring batch, the configuration I did for XML, because I was not clear on how the job was done by annotations

What this program does is through a textArea pick up queries separated by line breaks that later spliteo to pick up the values of the select

Then I pass to the job the whole query plus the fields of the select

Later I put the selected pick fields and splite them again to put them in a map that collects the name of the field to be recovered and the value retrieved from the database and so I can use it in the rowmapper to then put it into a CSV the result of the query

To summarize:

You put queries in a textArea separated by line breaks after a reader reads from the database and a writter writes it in a csv the results of the query

To summarize the problem:

How can I modify a bean so that another class can read it and it is not empty?

Where it is giving empty is in the method to create Job (There is put 1 comment so that it is visualized better):

for (HashMap<String, String> mapaSacado : listaMapasParams) {

Thank you in advance for everyone for reading me