Closes the TLS connection gracefully and reverts back to the underlying connection.

  Closes the TLS connection gracefully and reverts back to the underlying
connection.
Throws:
- IOException - If an IO error was encountered while closing the TLS connection

  Retrieves the StartTLS response's ASN.1 BER encoded value.

  Retrieves the StartTLS response's ASN.1 BER encoded value.
Since the response has no defined value, null is always
returned.
Returns: The null value.

  Retrieves the StartTLS response's object identifier string.

  Retrieves the StartTLS response's object identifier string.
Returns: The object identifier string, "1.3.6.1.4.1.1466.20037".

  Negotiates a TLS session using the default SSL socket factory.

  Negotiates a TLS session using the default SSL socket factory.

This method is equivalent to negotiate(null).
Returns: The negotiated SSL session
Throws:
- IOException - If an IO error was encountered while establishing the TLS session.
See Also: StartTlsResponse.setEnabledCipherSuites(java.lang.String[]), StartTlsResponse.setHostnameVerifier(javax.net.ssl.HostnameVerifier),

  Negotiates a TLS session using an SSL socket factory.

  Negotiates a TLS session using an SSL socket factory.

Creates an SSL socket using the supplied SSL socket factory and attaches it to the existing connection. Performs the TLS handshake and returns the negotiated session information.

If cipher suites have been set via setEnabledCipherSuites then they are enabled before the TLS handshake begins.

Hostname verification is performed after the TLS handshake completes. The default hostname verification performs a match of the server's hostname against the hostname information found in the server's certificate. If this verification fails and no callback has been set via setHostnameVerifier then the negotiation fails. If this verification fails and a callback has been set via setHostnameVerifier, then the callback is used to determine whether the negotiation succeeds.

If an error occurs then the SSL socket is closed and an IOException is thrown. The underlying connection remains intact.
Returns: The negotiated SSL session
Parameters:
- factory - The possibly null SSL socket factory to use. If null, the default SSL socket factory is used.
Throws:
- IOException - If an IO error was encountered while establishing the TLS session.
See Also: StartTlsResponse.setEnabledCipherSuites(java.lang.String[]), StartTlsResponse.setHostnameVerifier(javax.net.ssl.HostnameVerifier),

  Overrides the default list of cipher suites enabled for use on the TLS connection.

  Overrides the default list of cipher suites enabled for use on the
TLS connection. The cipher suites must have already been listed by
SSLSocketFactory.getSupportedCipherSuites() as being supported.
Even if a suite has been enabled, it still might not be used because
the peer does not support it, or because the requisite certificates
(and private keys) are not available.
Parameters:
- suites - The non-null list of names of all the cipher suites to enable.
See Also: StartTlsResponse.negotiate(),

  Sets the hostname verifier used by negotiate() after the TLS handshake has completed and the default hostname verification has failed.

  Sets the hostname verifier used by negotiate()
after the TLS handshake has completed and the default hostname
verification has failed.
setHostnameVerifier() must be called before
negotiate() is invoked for it to have effect.
If called after
negotiate(), this method does not do anything.
Parameters:
- verifier - The non-null hostname verifier callback.
See Also: StartTlsResponse.negotiate(),