code: public static void verifyKeystoreContent(AppleServer server, Object keystore) throws KeystoreException {
  		KeyStore keystoreToValidate = null;
  		if (keystore instanceof KeyStore) keystoreToValidate = (KeyStore) keystore;
  		else keystoreToValidate = loadKeystore(server, keystore);
  		verifyKeystoreContent(keystoreToValidate);
  	}
docs: Perform basic tests on a keystore to detect common user mistakes.
  If a problem is found, a KeystoreException is thrown.
  If no problem is found, this method simply returns without exceptions.
  
  @param server the server the keystore is intended for
  @param keystore a keystore containing your private key and the certificate signed by Apple (File, InputStream, byte[], KeyStore or String for a file path)
  @throws KeystoreException