SSL Exception file Keystore.jks not found For Http call

Question

I am facing the SSL Exception file Keystore.jks not found only in one environment rest of the environment works fine we have 4 environments.

i am calling a rest http url by using DefaultHttpClient . i have developed this in java and plugged in the jar to our IBM BPM process.

 DefaultHttpClient httpclient = new DefaultHttpClient();

                  List<String> authpref = new ArrayList<String>();                     
                  authpref.add(AuthPolicy.NTLM);

                  NTCredentials ntlm =new NTCredentials(userName, password, "", "XXXX");       
                  httpclient.getParams().setParameter(AuthPNames.TARGET_AUTH_PREF, authpref);

           //     httpclient.getParams().setParameter(AuthPNames.TARGET_AUTH_PREF, authpref);
           //     UsernamePasswordCredentials creds = new UsernamePasswordCredentials(userName,password);  
           //     httpclient.getCredentialsProvider().setCredentials(AuthScope.ANY, creds);

                  httpclient.getCredentialsProvider().setCredentials(AuthScope.ANY, ntlm);

                  String finalURL = baseURL  +folderpath;
                  finalURL = finalURL.replaceAll(" ", "%20");
                  System.out.println("final URL --->"+finalURL);
                  HttpGet request2 = new HttpGet(finalURL);  // target
                  request2.addHeader("Accept", "application/json;odata=verbose");

                   HttpResponse response2 = null;
                  response2 = httpclient.execute(request2);

i have also tried using a custom http client.

public class CustomHTTPClient
{
  public DefaultHttpClient getNewHttpClient()
  {
    try
    {
      KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
      trustStore.load(null, null);
      MySSLSocketFactory sf = new MySSLSocketFactory(trustStore);
      sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
      HttpParams params = new BasicHttpParams();
      HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
      HttpProtocolParams.setContentCharset(params, "UTF-8");

      SchemeRegistry registry = new SchemeRegistry();
      registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
      registry.register(new Scheme("https", sf, 443));

      ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry);

      return new DefaultHttpClient(ccm, params);
    }
    catch (Exception e) {}
    return new DefaultHttpClient();
  }
}

public class MySSLSocketFactory
  extends org.apache.http.conn.ssl.SSLSocketFactory
{
  SSLContext sslContext = SSLContext.getInstance("TLS");

  public MySSLSocketFactory(KeyStore truststore)
    throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException
  {
    super(truststore);

    TrustManager tm = new X509TrustManager()
    {
      public void checkClientTrusted(X509Certificate[] chain, String authType)
        throws CertificateException
      {}

      public void checkServerTrusted(X509Certificate[] chain, String authType)
        throws CertificateException
      {}

      public X509Certificate[] getAcceptedIssuers()
      {
        return null;
      }
    };
    this.sslContext.init(null, new TrustManager[] { tm }, null);
  }

  public Socket createSocket(Socket socket, String host, int port, boolean autoClose)
    throws IOException, UnknownHostException
  {
    return this.sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
  }

  public Socket createSocket()
    throws IOException
  {
    return this.sslContext.getSocketFactory().createSocket();
  }
}

This is a rest http URL not the https. Can any one advise please