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## javax.net.ssl
Class SSLSocketFactory

    java.lang.Object
      javax.net.SocketFactory
          javax.net.ssl.SSLSocketFactory

    public abstract class SSLSocketFactory

extends SocketFactory

`SSLSocketFactory`s create `SSLSocket`s.

Since:
  1.4
See Also:
  `SSLSocket`

Constructor Summary
`SSLSocketFactory()` Constructor is used only by subclasses.

Method Summary
`abstract Socket` | `createSocket(Socket s, String host, int port, boolean autoClose)` Returns a socket layered over an existing socket connected to the named host, at the given port.
`static SocketFactory` | `getDefault()` Returns the default SSL socket factory.
`abstract String[]` | `getDefaultCipherSuites()` Returns the list of cipher suites which are enabled by default.
`abstract String[]` | `getSupportedCipherSuites()` Returns the names of the cipher suites which could be enabled for use on an SSL connection.

Methods inherited from class javax.net.SocketFactory
`createSocket, createSocket, createSocket, createSocket, createSocket`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### SSLSocketFactory

    public SSLSocketFactory()

  Constructor is used only by subclasses.

Method Detail

### getDefault

    public static SocketFactory getDefault()

  Returns the default SSL socket factory.

  The first time this method is called, the security property "ssl.SocketFactory.provider" is examined. If it is non-null, a class by that name is loaded and instantiated. If that is successful and the object is an instance of SSLSocketFactory, it is made the default SSL socket factory.

  Otherwise, this method returns `SSLContext.getDefault().getSocketFactory()`. If that call fails, an inoperative factory is returned.

  Returns:
    the default `SocketFactory`
  See Also:
    `SSLContext.getDefault()`

### getDefaultCipherSuites

    public abstract String[] getDefaultCipherSuites()

  Returns the list of cipher suites which are enabled by default. Unless a different list is enabled, handshaking on an SSL connection will use one of these cipher suites. The minimum quality of service for these defaults requires confidentiality protection and server authentication (that is, no anonymous cipher suites).

  Returns:
    array of the cipher suites enabled by default
  See Also:
    `getSupportedCipherSuites()`

### getSupportedCipherSuites

    public abstract String[] getSupportedCipherSuites()

  Returns the names of the cipher suites which could be enabled for use on an SSL connection. Normally, only a subset of these will actually be enabled by default, since this list may include cipher suites which do not meet quality of service requirements for those defaults. Such cipher suites are useful in specialized applications.

  Returns:
    an array of cipher suite names
  See Also:
    `getDefaultCipherSuites()`

### createSocket

    public abstract Socket createSocket(Socket s,
                                        String host,
                                        int port,
                                        boolean autoClose)
                                 throws IOException

  Returns a socket layered over an existing socket connected to the named host, at the given port. This constructor can be used when tunneling SSL through a proxy or when negotiating the use of SSL over an existing socket. The host and port refer to the logical peer destination. This socket is configured using the socket options established for this factory.

  Parameters:
    `s` - the existing socket
    `host` - the server host
    `port` - the server port
    `autoClose` - close the underlying socket when this socket is closed
  Returns:
    a socket connected to the specified host and port
  Throws:
    `IOException` - if an I/O error occurs when creating the socket
    `UnknownHostException` - if the host is not known

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