PKIX path building failed

import java.io.IOException;
import java.security.Provider;
import java.security.Security;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.net.URL;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.SOAPConnection;
import javax.xml.soap.SOAPConnectionFactory;
import javax.xml.soap.SOAPConstants;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPMessage;


public class StatusServicoClient {

    public static String runWebService(String envelope, String urlAddress) {
        String result = "";

        try {
            MessageFactory factory = MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL);
            SOAPMessage message;

            try {
                message = factory.createMessage(null, new ByteArrayInputStream(envelope.getBytes()));
                SOAPConnection con = SOAPConnectionFactory.newInstance().createConnection();
                URL url = new URL(urlAddress);

                SOAPMessage res = con.call(message, url);

                ByteArrayOutputStream out = new ByteArrayOutputStream();

                ajustaSslCertificadoA3();

                res.writeTo(out);

                result = out.toString();

            } catch (IOException ex) {
                ex.printStackTrace();
            }
        } catch (SOAPException ex) {
            ex.printStackTrace();
        }
        return result;
    }


    public static void ajustaSslCertificadoA3() {
        System.setProperty("sun.security.ssl.allowUnsafeRenegotiation", "true");

        System.setProperty("com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.dump", "true");

        System.setProperty("java.protocol.handler.pkgs", "com.sun.net.ssl.internal.www.protocol");
        Provider p = new sun.security.pkcs11.SunPKCS11("C:\\slnfe\\certificado\\tokencartao.cfg");
        Security.addProvider(p);
        System.setProperty("sun.security.ssl.allowUnsafeRenegotiation ", "true");

        System.setProperty("javax.net.ssl.keyStoreType", "PKCS11");
        System.setProperty("javax.net.ssl.keyStore", "NONE");
        System.setProperty("javax.net.ssl.keyStorePassword", senhadopin);
        System.setProperty("javax.net.ssl.keyStoreProvider", "SunPKCS11-NFE");

        System.setProperty("javax.net.ssl.trustStoreType", "JKS");
        System.setProperty("javax.net.ssl.trustStore", Arquivokeystore.jks);
    }

    public static void main(String[] args) {

        System.setProperty("sun.security.ssl.allowUnsafeRenegotiation", "true");

        String envelope = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
                + "<s:Envelope xmlns:s=\"http://www.w3.org/2003/05/soap-envelope\"><s:Header>"
                + "<nfeCabecMsg xmlns=\"http://www.portalfiscal.inf.br/nfe/wsdl/NfeStatusServico2\">"
                + "<cUF>15</cUF><versaoDados>2.00</versaoDados></nfeCabecMsg></s:Header>"
                + "<s:Body xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">"
                + "<nfeDadosMsg xmlns=\"http://www.portalfiscal.inf.br/nfe/wsdl/NfeStatusServico2\">"
                + "<consStatServ xmlns=\"http://www.portalfiscal.inf.br/nfe\" versao=\"2.00\">"
                + "<tpAmb>1</tpAmb><cUF>15</cUF><xServ>STATUS</xServ></consStatServ></nfeDadosMsg></s:Body></s:Envelope>";


        String url = "https://www.sefazvirtual.fazenda.gov.br/NfeStatusServico2/NfeStatusServico2.asmx";

        String msg = runWebService(envelope, url);

        System.out.println(msg);

    }
}

import java.security.Security;
import webservices.NfeCabecMsg;
import webservices.NfeDadosMsg;
import webservices.NfeStatusServico2;
import webservices.NfeStatusServico2Soap12;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 *
 * @author altitdb
 */
public class TesteWebServiceStatus {

    public TesteWebServiceStatus() {

        System.setProperty("java.protocol.handler.pkgs", "com.sun.net.ssl.internal.www.protocol");
        Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

        System.setProperty("javax.net.ssl.keyStoreType", "PKCS12");
        System.setProperty("javax.net.ssl.keyStore", "C:\\certificado.p12");
        System.setProperty("javax.net.ssl.keyStorePassword", "certificado");

        System.setProperty("javax.net.ssl.trustStoreType", "JKS");
        System.setProperty("javax.net.ssl.trustStore", "C:\\jksrs.jks");
        System.setProperty("javax.net.ssl.trustStorePassword", "123456");
        NfeStatusServico2 service = new NfeStatusServico2();

        try {
            NfeStatusServico2Soap12 nfeStatus = service.getNfeStatusServico2Soap12();
            NfeDadosMsg n = new NfeDadosMsg();
            NfeCabecMsg nc = new NfeCabecMsg();
            nc.setCUF("51");
            nc.setVersaoDados("2.00");
            n.getContent().add(nc);
            System.out.println(nfeStatus.nfeStatusServicoNF2(n));
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        new TesteWebServiceStatus();
    }
}