SSL HttpsUrlConnection

Hi,

My name is Luciano, I am trying to implement a ssl comunication between a desktop application and a web application. I unable the https on JBoss and I have two files ca.crt and server.crt, I install the server crt on the browser and test the connection, all occour perfectly, But when I try connect using my desktop aplication i get the error:

Exception in thread "main" javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:174)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1611)
    at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:187)
    at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:181)
    at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1035)
    at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:124)
    at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516)
    at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454)

I search the solution, but the most of response dont solve my problem, what can I do to solve this problem? The connection code is:

    URL page = new URL(url);
    HttpsURLConnection connection = (HttpsURLConnection) page
            .openConnection();

    File trustFile = new File("C:/myteste/truststore");
    File keyFile = new File("C:/myteste/keystore");

    connection.setDefaultSSLSocketFactory(this.getSSLSocketFactory(
            trustFile, "teste", keyFile, "teste"));