(RESOLVIDO)Erro

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'br.com.fjsistemas.cadastros.view.VendaView': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Property type 'java.lang.String' doesn't match the field type 'java.time.LocalDate'. Binding should be configured manually using converter.
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:160) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:429) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1780) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:321) ~[spring-beans-5.3.3.jar:5.3.3]
	at com.vaadin.flow.spring.SpringInstantiator.getOrCreate(SpringInstantiator.java:117) ~[vaadin-spring-12.3.2.jar:na]
	at com.vaadin.flow.di.Instantiator.createRouteTarget(Instantiator.java:160) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.lambda$getRouteTarget$1(AbstractNavigationStateRenderer.java:135) ~[flow-server-2.4.6.jar:2.4.6]
	at java.base/java.util.Optional.orElseGet(Optional.java:362) ~[na:na]
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.getRouteTarget(AbstractNavigationStateRenderer.java:134) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.sendBeforeEnterEventAndPopulateChain(AbstractNavigationStateRenderer.java:518) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.createChainIfEmptyAndExecuteBeforeEnterNavigation(AbstractNavigationStateRenderer.java:498) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.handle(AbstractNavigationStateRenderer.java:230) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.Router.handleNavigation(Router.java:249) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.Router.navigate(Router.java:220) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.Router.navigate(Router.java:186) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.router.Router.initializeUI(Router.java:93) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.server.BootstrapHandler.createAndInitUI(BootstrapHandler.java:1526) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.server.BootstrapHandler.synchronizedHandleRequest(BootstrapHandler.java:475) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1547) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:247) ~[flow-server-2.4.6.jar:2.4.6]
	at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:111) ~[vaadin-spring-12.3.2.jar:na]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.41.jar:4.0.FR]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.41.jar:4.0.FR]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.41.jar:4.0.FR]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.3.jar:5.3.3]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.3.jar:5.3.3]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.3.jar:5.3.3]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at java.base/java.lang.Thread.run(Thread.java:830) ~[na:na]
Caused by: java.lang.IllegalStateException: Property type 'java.lang.String' doesn't match the field type 'java.time.LocalDate'. Binding should be configured manually using converter.
	at com.vaadin.flow.data.binder.Binder.bindProperty(Binder.java:2859) ~[flow-data-2.4.6.jar:2.4.6]
	at com.vaadin.flow.data.binder.Binder.lambda$null$26(Binder.java:2759) ~[flow-data-2.4.6.jar:2.4.6]
	at com.vaadin.flow.data.binder.Binder.handleProperty(Binder.java:2948) ~[flow-data-2.4.6.jar:2.4.6]
	at com.vaadin.flow.data.binder.Binder.lambda$bindInstanceFields$27(Binder.java:2757) ~[flow-data-2.4.6.jar:2.4.6]
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) ~[na:na]
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) ~[na:na]
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) ~[na:na]
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1621) ~[na:na]
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[na:na]
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[na:na]
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) ~[na:na]
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
	at java.base/java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:563) ~[na:na]
	at com.vaadin.flow.data.binder.Binder.bindInstanceFields(Binder.java:2761) ~[flow-data-2.4.6.jar:2.4.6]
	at br.com.fjsistemas.cadastros.view.VendaView.configuraBinder(VendaView.java:322) ~[classes/:na]
	at br.com.fjsistemas.cadastros.view.VendaView.configuraTela(VendaView.java:132) ~[classes/:na]
	at br.com.fjsistemas.cadastros.view.VendaView.init(VendaView.java:119) ~[classes/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:333) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:157) ~[spring-beans-5.3.3.jar:5.3.3]
	... 73 common frames omitted

2021-03-24 13:29:23.434  WARN 11424 --- [alina-utility-1] com.vaadin.flow.server.VaadinSession     : A VaadinSession instance not associated to any service is getting unbound. Session destroy events will not be fired and UIs in the session will not get detached. This might happen if a session is deserialized but never used before it expires.

package br.com.fjsistemas.cadastros.view;

import java.text.NumberFormat;
import java.text.ParseException;
import java.time.LocalDate;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import javax.annotation.PostConstruct;

import org.springframework.beans.factory.annotation.Autowired;
import org.vaadin.textfieldformatter.CustomStringBlockFormatter;

import com.vaadin.flow.component.Component;
import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.button.ButtonVariant;
import com.vaadin.flow.component.combobox.ComboBox;
import com.vaadin.flow.component.datepicker.DatePicker;
import com.vaadin.flow.component.dialog.Dialog;
import com.vaadin.flow.component.formlayout.FormLayout;
import com.vaadin.flow.component.grid.Grid;
import com.vaadin.flow.component.grid.GridVariant;
import com.vaadin.flow.component.html.Div;
import com.vaadin.flow.component.html.Label;
import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.component.tabs.Tab;
import com.vaadin.flow.component.tabs.Tabs;
import com.vaadin.flow.component.textfield.NumberField;
import com.vaadin.flow.component.textfield.TextField;
import com.vaadin.flow.data.binder.Binder;
import com.vaadin.flow.data.binder.PropertyId;
import com.vaadin.flow.data.renderer.NumberRenderer;
import com.vaadin.flow.router.PageTitle;
import com.vaadin.flow.router.Route;

import br.com.fjsistemas.backend.Cliente;
import br.com.fjsistemas.backend.Produto;
import br.com.fjsistemas.backend.Venda;
import br.com.fjsistemas.main.MainView;
import br.com.fjsistemas.repository.ClienteRepository;
import br.com.fjsistemas.repository.ProdutoRepository;
import br.com.fjsistemas.service.VendaService;

@Route(value = "venda-view", layout = MainView.class)
@PageTitle("Lançamento de Vendas")
public class VendaView extends VerticalLayout {

    private static final long serialVersionUID = 1L;

    private HorizontalLayout hltVenda = new HorizontalLayout();
    Grid<Venda> grdVenda = new Grid<>(Venda.class, false);

    private HorizontalLayout hltBarraBotoes = new HorizontalLayout();
    Button btnNovo = new Button("Novo");
    Button btnAlterar = new Button("Alterar");
    Button btnExcluir = new Button("Excluir");

    private Dialog dlgJanela = new Dialog();

    private FormLayout fltCamposVenda = new FormLayout();

    HorizontalLayout segundaLinhaGuiaVenda = new HorizontalLayout();
    HorizontalLayout terceiraLinhaGuiaVenda = new HorizontalLayout();

    Tab vender = new Tab("Vendas");
    Div venderDiv = new Div();

    Tab entrega = new Tab("Entregas");
    Div entregaDiv = new Div();

    Tab financeiro = new Tab("Financeiro");
    Div financeiroDiv = new Div();
    
    double somaValores;

    @PropertyId("data")
    private DatePicker txtDataVenda = new DatePicker("Data Venda");

    @PropertyId("nome")
    private ComboBox<Cliente> txtNomeCliente = new ComboBox<>();

    @PropertyId("telefone")
    private TextField txtTelefone = new TextField("Telefone");

    @PropertyId("celular")
    private TextField txtCelular = new TextField("Celular");

    @PropertyId("campoSomaValores")
    private TextField campoSomaValores = new TextField();

    private HorizontalLayout htlDlgBarraBotoes = new HorizontalLayout();
    private Button btnSalvar = new Button("Salvar");
    private Button btnFechar = new Button("Fechar");
    private Button btnAdicionarItem = new Button("+ Item");

    @Autowired
    VendaService vendaService;

    @Autowired
    ClienteRepository clienteRepository;

    @Autowired
    ProdutoRepository produtoRepository;

    private List<Venda> listaVendas;
    private Venda venda;

    Binder<Venda> binderVenda = new Binder<>(Venda.class);

    public VendaView() {

    }

    @PostConstruct
    public void init() {
        configuraTela();

    }

    private void configuraTela() {

        setMargin(false);
        setPadding(false);

        configuraHltVenda();
        configuraFltBarraBotoes();
        configuraDlgJanela();
        populaGrdVenda();
        configuraBinder();

        add(hltVenda, hltBarraBotoes);
    }

    private void configuraFltBarraBotoes() {

        btnNovo.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
        btnNovo.addClickListener(e -> {
            novoClick();
        });

        btnAlterar.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
        btnAlterar.addClickListener(e -> {
            alterarClick();
        });

        btnExcluir.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
        btnExcluir.addClickListener(e -> {
            excluirClick();
        });

        hltBarraBotoes.add(btnNovo, btnAlterar, btnExcluir);
    }

    private void excluirClick() {

        if (venda != null) {
            listaVendas.remove(venda);
            vendaService.delete(venda);
            atualizaGrdVenda();
        }
    }

    private void configuraHltVenda() {
        hltVenda.setWidthFull();
        configuraGrdVenda();
        hltVenda.add(grdVenda);
    }

    private void configuraGrdVenda() {
        grdVenda.setHeight("820px");
        grdVenda.setWidthFull();

        grdVenda.addColumn(Venda::getId).setHeader("ID:").setAutoWidth(true);

        grdVenda.addColumn(Venda::getData).setHeader("Data Venda:").setAutoWidth(true).setKey("data");

        grdVenda.addColumn(Venda::getNome).setHeader("Nome:").setAutoWidth(true).setKey("nome");

        grdVenda.addColumn(Venda::getTelefone).setHeader("Telefone:").setAutoWidth(true).setKey("telefone");

        grdVenda.addColumn(Venda::getCelular).setHeader("Celular:").setAutoWidth(true).setKey("celular");

        grdVenda.addColumn(new NumberRenderer<>(Venda::getValor, "R$ %(,.2f", Locale.getDefault(), "R$ 0.00"))
                .setHeader("Valor:").setAutoWidth(true).setKey("valor");

        grdVenda.addThemeVariants(GridVariant.LUMO_COMPACT, GridVariant.LUMO_COLUMN_BORDERS);

        grdVenda.getColumns().forEach(col -> col.setAutoWidth(true).setSortable(true).setResizable(true));

        grdVenda.addItemClickListener(e -> {
            venda = e.getItem();
        });

    }

    private void configuraDlgJanela() {

        dlgJanela.setHeight("755px");
        dlgJanela.setWidth("860px");

//=====================================================================================================================

        txtNomeCliente.setWidth("350px");
        txtNomeCliente.setLabel("Nome Cliente");

        List<Cliente> listaDeClientes = clienteRepository.findAll();
        txtNomeCliente.setItemLabelGenerator(Cliente::getNome);
        txtNomeCliente.setItems(listaDeClientes);
        txtNomeCliente.addValueChangeListener(event -> {
            txtTelefone.setValue(event.getValue().getFone());
            txtCelular.setValue(event.getValue().getCelular());
        });

        new CustomStringBlockFormatter.Builder().blocks(0, 2, 4, 4).delimiters("(", ")", "-").numeric().build()
                .extend(txtTelefone);

        new CustomStringBlockFormatter.Builder().blocks(0, 2, 5, 4).delimiters("(", ")", "-").numeric().build()
                .extend(txtCelular);

//=====================================================================================================================

        Label text = new Label("Valor Total da Compra");
        text.getElement().getStyle().set("fontWeight", "bold");
        text.getStyle().set("margin-top", "2em");
        text.getStyle().set("margin-left", "2em");
        text.getStyle().set("text-align", "center");
        campoSomaValores.getStyle().set("margin-top", "2em");
        campoSomaValores.getStyle().set("margin-right", "1em");
        campoSomaValores.setWidth("30em");

//==========================================================================================================================    

        segundaLinhaGuiaVenda.add(txtNomeCliente, txtTelefone, txtCelular);

        fltCamposVenda.add(venderDiv, entregaDiv, financeiroDiv);
        venderDiv.add(txtDataVenda, segundaLinhaGuiaVenda);
        venderDiv.getStyle().set("height", "600px");
        venderDiv.getStyle().set("width", "800px");
        venderDiv.getStyle().set("overflow-y", "scroll");

        vender.add(venderDiv);

        LocalDate now = LocalDate.now();
        txtDataVenda.setValue(now);

        Map<Tab, Component> tabsToPages = new HashMap<>();
        tabsToPages.put(vender, venderDiv);
        tabsToPages.put(entrega, entregaDiv);
        tabsToPages.put(financeiro, financeiroDiv);
        Tabs tabs = new Tabs(vender, entrega, financeiro);
        Div pages = new Div(venderDiv, entregaDiv, financeiroDiv);

        tabs.addSelectedChangeListener(event -> {
            tabsToPages.values().forEach(page -> page.setVisible(false));
            Component selectedPage = tabsToPages.get(tabs.getSelectedTab());
            selectedPage.setVisible(true);
        });

        dlgJanela.add(tabs, pages);

        btnSalvar.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
        btnSalvar.getStyle().set("margin-top", "2em");
        btnSalvar.getStyle().set("margin-left", "1em");
        btnSalvar.addClickListener(e -> {
            salvarClick();
        });

        btnFechar.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
        btnFechar.getStyle().set("margin-top", "2em");
        btnFechar.addClickListener(e -> {
            dlgJanela.close();
        });

        btnAdicionarItem.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
        btnAdicionarItem.getStyle().set("margin-top", "2em");
        btnAdicionarItem.addClickListener(e -> {
            adicionaProduto();
        });

        htlDlgBarraBotoes.add(btnSalvar, btnFechar, btnAdicionarItem, text, campoSomaValores);

        dlgJanela.add(fltCamposVenda, htlDlgBarraBotoes);
    }

    private void salvarClick() {

        venda = binderVenda.getBean();

        boolean adicionarLista = venda.getId() == null ? true : false;

        vendaService.create(venda);

        if (adicionarLista) {
            listaVendas.add(venda);
        }
        atualizaGrdVenda();
        novaVenda();
        txtNomeCliente.focus();

        binderVenda.setBean(venda);

        if (adicionarLista) {
            dlgJanela.close();
        }
    }

    private void populaGrdVenda() {

        listaVendas = vendaService.read();
        atualizaGrdVenda();
    }

    private void atualizaGrdVenda() {
        grdVenda.setItems(listaVendas);
    }

    private void configuraBinder() {

        binderVenda.bindInstanceFields(this);

    }

    private void novoClick() {

        novaVenda();
        binderVenda.setBean(venda);

        dlgJanela.open();
        txtNomeCliente.focus();
    }

    private void alterarClick() {

        if (venda != null) {
            binderVenda.setBean(venda);

            dlgJanela.open();

        }
    }

    private void adicionaProduto() {

        ComboBox<Produto> txtProdutos = new ComboBox<>();

        NumberField txtQuantidade = new NumberField("Quantidade");

        TextField txtValorUnitario = new TextField("Valor Unitário");

        TextField txtValorTotalItem = new TextField("Valor Total Item");

        txtProdutos.setWidth("370px");
        txtProdutos.setLabel("Produtos");
        List<Produto> listaDeProdutos = produtoRepository.findAll();
        txtProdutos.setItemLabelGenerator(Produto::getNome);
        txtProdutos.setItems(listaDeProdutos);
        txtProdutos.addValueChangeListener(event -> {

            NumberFormat formatter = NumberFormat.getCurrencyInstance(new Locale("pt", "BR"));
            try {

                txtValorUnitario.setValue(formatter.format(event.getValue().getValor()));

            } catch (Exception e) {
                e.printStackTrace();
            }

        });

//==========================================================================================================================

        txtQuantidade.setHasControls(true);
        txtQuantidade.setValue(null);
        txtQuantidade.setMin(1);

        txtQuantidade.addValueChangeListener(event -> {

            NumberFormat formatter = NumberFormat.getCurrencyInstance(new Locale("pt", "BR"));
            double valorTotal = 0;

            try {
                valorTotal = formatter.parse(txtValorUnitario.getValue()).doubleValue() * txtQuantidade.getValue();
            } catch (ParseException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            txtValorTotalItem.setValue(formatter.format(valorTotal));
            
            somaValores += valorTotal;
            campoSomaValores.setValue(formatter.format(somaValores));

        });

        HorizontalLayout linhaNova = new HorizontalLayout();
        linhaNova.add(txtProdutos, txtQuantidade, txtValorUnitario, txtValorTotalItem);

        venderDiv.add(linhaNova);

    }

    private void novaVenda() {
        venda = new Venda();
        venda.setNome(" ");
        dlgJanela.close();

    }
}

package br.com.fjsistemas.backend;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@AllArgsConstructor
@NoArgsConstructor
@Data
@Entity
public class Venda {
	
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private Long id;
	
	private String data;
	private String nome;
	private String telefone;
	private String celular;
	private Double valor;
}

Troque:

private String data;

Por:

private LocalDate data;

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'br.com.fjsistemas.cadastros.view.VendaView': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Property type 'java.lang.String' doesn't match the field type 'br.com.fjsistemas.backend.Cliente'. Binding should be configured manually using converter.
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:160)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:429)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1780)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:321)
	at com.vaadin.flow.spring.SpringInstantiator.getOrCreate(SpringInstantiator.java:117)
	at com.vaadin.flow.di.Instantiator.createRouteTarget(Instantiator.java:160)
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.lambda$getRouteTarget$1(AbstractNavigationStateRenderer.java:135)
	at java.base/java.util.Optional.orElseGet(Optional.java:362)
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.getRouteTarget(AbstractNavigationStateRenderer.java:134)
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.sendBeforeEnterEventAndPopulateChain(AbstractNavigationStateRenderer.java:518)
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.createChainIfEmptyAndExecuteBeforeEnterNavigation(AbstractNavigationStateRenderer.java:498)
	at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.handle(AbstractNavigationStateRenderer.java:230)
	at com.vaadin.flow.router.Router.handleNavigation(Router.java:249)
	at com.vaadin.flow.router.Router.navigate(Router.java:220)
	at com.vaadin.flow.router.Router.lambda$initializeUI$caa7783a$1(Router.java:90)
	at com.vaadin.flow.server.communication.rpc.NavigationRpcHandler.handle(NavigationRpcHandler.java:66)
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocationData(ServerRpcHandler.java:409)
	at com.vaadin.flow.server.communication.ServerRpcHandler.lambda$handleInvocations$1(ServerRpcHandler.java:390)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1507)
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:390)
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:317)
	at com.vaadin.flow.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:89)
	at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
	at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1547)
	at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:247)
	at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:111)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
	at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141)
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:830)
Caused by: java.lang.IllegalStateException: Property type 'java.lang.String' doesn't match the field type 'br.com.fjsistemas.backend.Cliente'. Binding should be configured manually using converter.
	at com.vaadin.flow.data.binder.Binder.bindProperty(Binder.java:2859)
	at com.vaadin.flow.data.binder.Binder.lambda$null$26(Binder.java:2759)
	at com.vaadin.flow.data.binder.Binder.handleProperty(Binder.java:2948)
	at com.vaadin.flow.data.binder.Binder.lambda$bindInstanceFields$27(Binder.java:2757)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1621)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:563)
	at com.vaadin.flow.data.binder.Binder.bindInstanceFields(Binder.java:2761)
	at br.com.fjsistemas.cadastros.view.VendaView.configuraBinder(VendaView.java:322)
	at br.com.fjsistemas.cadastros.view.VendaView.configuraTela(VendaView.java:132)
	at br.com.fjsistemas.cadastros.view.VendaView.init(VendaView.java:119)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:333)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:157)
	... 77 more