Спасибо большое, тепери оно явно не пустое и оошибка пропала, однако, появилась новая - как при попытке использывать HttpClient, так и при попытке просто что либо отправить в стрим:
Код:SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
		SSLSocket  socket = (SSLSocket) factory.createSocket("cpca.cryptopro.ru", 443);
		OutputStream os = socket.getOutputStream();
		os.write(5);
		os.flush();
 Вывод программы:
WARNING: %% No appropriate keys for handhake
Exception in thread "main" javax.net.ssl.SSLException: java.lang.UnsupportedOperationException
	at ru.CryptoPro.ssl.J.a(Unknown Source)
	at ru.CryptoPro.ssl.s.a(Unknown Source)
	at ru.CryptoPro.ssl.s.a(Unknown Source)
	at ru.CryptoPro.ssl.s.a(Unknown Source)
	at ru.CryptoPro.ssl.Y.write(Unknown Source)
	at ru.CryptoPro.ssl.Y.write(Unknown Source)
	at certsTEst.main(certsTEst.java:81)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: java.lang.UnsupportedOperationException
	at javax.crypto.CipherSpi.engineGetKeySize(DashoA13*..)
	at javax.crypto.CipherSpi.engineGetKeySize(DashoA13*..)
	at javax.crypto.Cipher.b(DashoA13*..)
	at javax.crypto.Cipher.a(DashoA13*..)
	at javax.crypto.Cipher.a(DashoA13*..)
	at javax.crypto.Cipher.a(DashoA13*..)
	at javax.crypto.Cipher.init(DashoA13*..)
	at javax.crypto.Cipher.init(DashoA13*..)
	at ru.CryptoPro.ssl.gostTLS.e.a(Unknown Source)
	at ru.CryptoPro.ssl.gostTLS.a.a(Unknown Source)
	at ru.CryptoPro.ssl.a.a(Unknown Source)
	at ru.CryptoPro.ssl.a.a(Unknown Source)
	at ru.CryptoPro.ssl.K.k(Unknown Source)
	at ru.CryptoPro.ssl.K.a(Unknown Source)
	at ru.CryptoPro.ssl.s.a(Unknown Source)
	at ru.CryptoPro.ssl.s.h(Unknown Source)
	... 9 more