public final class OpenSslX509KeyManagerFactory
Special KeyManagerFactory that pre-compute the keymaterial used when SslProvider.OPENSSL or
SslProvider.OPENSSL_REFCNT is used and so will improve handshake times and its performance.
Because the keymaterial is pre-computed any modification to the KeyStore is ignored after
KeyManagerFactory.init(KeyStore, char) is called.
KeyManagerFactory.init(ManagerFactoryParameters) is not supported by this implementation and so a call to it will always
result in an InvalidAlgorithmParameterException.