Как справиться с проблемой: Trust anchor for certification path not found

Согласно ответу KoVadim, ответ из источника (источник).

OkHttpClient okHttpClient = UnsafeOkHttpClient.getUnsafeOkHttpClient();

Retrofit.Builder builder = new Retrofit.Builder()  
        .baseUrl("http://10.0.2.2:3000/")
        .client(okHttpClient)
        .addConverterFactory(GsonConverterFactory.create());

Retrofit retrofit = builder.build();

UserService userClient = retrofit.create(UserService.class);

Call<ResponseBody> call = userClient.profilePicture("https://revoked.badssl.com/");  
call.enqueue(new Callback<ResponseBody>() {  
    @Override
    public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
        Toast.makeText(BadSSLActivity.this, "got response" , Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        Toast.makeText(BadSSLActivity.this, "SSL error?" , Toast.LENGTH_SHORT).show();
    }
});