Https not work in java1.6

Question

I have created a java application that communicates with a Server via HTTPS.
I use both jdk and jre 1.4 application work find not error message but
I use jdk 1.6 application not work and application have error message
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(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(Unknown Source)
at HttpClient.execute(HttpClient.java:82)
at HttpClient.main(HttpClient.java:254)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertP
athBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at sun.security.validator.Validator.validate(Unknown Source)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(Unknown Source)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
... 14 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to reques
ted target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
at java.security.cert.CertPathBuilder.build(Unknown Source)
... 20 more
I set certificate by code
System.setProperty("javax.net.ssl.trustStore", "certificate.cer");
I don't understand error message
Help me please.....

Answer 1

Hello
I connection by code
System.setProperty("javax.net.ssl.trustStore", "certificate.cer");
               Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
                 // override default hostname verifier, ignore hostname mismatch error
                 HostnameVerifier hnv = new HostnameVerifier() {
                      public boolean verify (String urlHostname, SSLSession session)
                         if (!urlHostname.equalsIgnoreCase(session.getPeerHost()))
                              if(DEBUG){
                             System.out.println("WARNING: Hostname mismatch (" +
                                                  urlHostname + "), certificate Hostname is "
                                                  + session.getPeerHost());
                         return true;
              HttpsURLConnection.setDefaultHostnameVerifier(hnv);
               URL url = new URL("https","URL",443,"FILE");
System.out.println("Opening connection: " + url);
URLConnection conn = url.openConnection();
            conn.setRequestProperty("username", "USERNAME");
            conn.setRequestProperty("userpassword", "PASSWORD");
            conn.setRequestProperty("Content-Encoding", "gzip");
            conn.setDoOutput(true);
            conn.setDoInput(true);
            GZIPOutputStream out = new GZIPOutputStream(conn.getOutputStream());
            Properties requestProp = new Properties();
              try
                   requestProp.load(new FileInputStream("request.properties"));
                    System.out.println("HttPClient : Properties (request.properties) loaded.");
              catch (IOException ioe)
                   System.out.println("HttPClient: Failed loading properties: request.properties");
            System.out.println("sending contents..");
            requestProp.store(out, "Client Request");
            System.out.println("closing output");
            out.finish();
            out.close();
            // getting response
            GZIPInputStream input = new GZIPInputStream(conn.getInputStream());
            Properties responseProp = new Properties();
            responseProp.load(input);
            if (responseProp != null)
                 responseProp.store(new FileOutputStream("response.properties"), "response from server");
System.out.println("Exiting...");