CertPathValidatorException : Trust anchor for certificate path not found - Retrofit Android

Question

I am creating an android application which uses https for communication with the server. I am using retrofit and OkHttp for making req

Answer 1

If you have a certificate then you can provide but few webservices will not have the certificate for them please follow below.

 // creating a KeyStore containing our trusted CAs
    String keyStoreType = KeyStore.getDefaultType();
    KeyStore keyStore = KeyStore.getInstance(keyStoreType);
    keyStore.load(null, null);

    // creating a TrustManager that trusts the CAs in our KeyStore
    String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
    TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
    tmf.init(keyStore);

    // creating an SSLSocketFactory that uses our TrustManager
    SSLContext sslContext = SSLContext.getInstance("TLS");
    sslContext.init(null, tmf.getTrustManagers(), null);
    okHttpClient.setSslSocketFactory(sslContext.getSocketFactory());
    // creating a RestAdapter using the custom client
    return new RestAdapter.Builder()
            .setEndpoint(UrlRepository.API_BASE)
            .setClient(new OkClient(okHttpClient))
            .build();