Basic authentication using HTTPS

I'm currently trying to access URLs with HTTP and HTTPS. The URL I'm trying to get requires basic authentication. It works fine with HTTP, but with HTTPS it is not. I'm not sure if there is something I need to add differently with HTTPS. The URL is supposed to return me text that is in a key-value format that I can load into the object Properties.

Here is the code I've tried so far.

if (cpUrl.getProtocol().equals("https")) {
                        out.println("https", 0);
                        HttpsURLConnection connection = (HttpsURLConnection) cpUrl.openConnection();

                        TrustManager[] trustAllCerts = new TrustManager[] { new  BusinessIntelligenceX509TrustManager() };
                        SSLContext sc;

                        try {
                            sc = SSLContext.getInstance("SSL");
                        }
                        catch (NoSuchAlgorithmException noSuchAlgorithmException) {
                            return;
                        }

                        HostnameVerifier hv = new BusinessIntelligenceHostnameVerifier();

                        try {
                            sc.init(null, trustAllCerts, new java.security.SecureRandom());
                        }
                        catch (KeyManagementException keyManagementException) {

                            return;
                        }

                        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
                        HttpsURLConnection.setDefaultHostnameVerifier(hv);

                        connection.setDoInput(true);
                        connection.setRequestProperty("Authorization", "Basic " + encode);

                        connection.setRequestMethod("POST");
                        connection.connect();
                        stream = connection.getInputStream();
                        Properties properties = new Properties();
                        properties.load(stream);

                    }

Here are the certificate classes

   //HTTPS CERTIFICATE CLASSES
    class BusinessIntelligenceHostnameVerifier implements HostnameVerifier {

        public boolean verify(String arg0, SSLSession arg1) {
            return true;
        }

    }

    class BusinessIntelligenceX509TrustManager implements X509TrustManager {

        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return null;
        }

        public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {
            // no-op
        }

        public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {
            // no-op
        }

    }

Error message when deleting the entire certificate code (as well as the certificate code):

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:150)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1518)
    at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:174)
    at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:168)
    at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:848)
    at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:106)
    at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:495)
    at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:433)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:818)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1030)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1057)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1041)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:402)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:170)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:133)
    at com.tecsys.bi.install.BiInstall2ControlPanelPromptsProcessor.run(BiInstall2ControlPanelPromptsProcessor.java:117)
    at java.lang.Thread.run(Thread.java:595)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:221)
    at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:145)
    at sun.security.validator.Validator.validate(Validator.java:203)
    at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:172)
    at com.sun.net.ssl.internal.ssl.JsseX509TrustManager.checkServerTrusted(SSLContextImpl.java:320)
    at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:841)
    ... 12 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:236)
    at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:194)
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:216)
    ... 17 more