THE PACKAGE JAVA.LANG
java.lang.SecurityManager
20.17
20.17.24
public void checkListen(int port)
throws SecurityException
The general contract of this method is that it should throw a
SecurityException
if listening to the specified local network
port
 is not permitted.
This method is invoked for the current security manager ( 20.18.4) by the
constructor of one argument for class
java.net.DatagramSocket
 and by the
constructors for class
java.net.ServerSocket
. (These classes are not docu 
mented in this specification. See
The Java Application Programming Interface
.)
The
checkListen
 method defined by class
SecurityManager
 always throws
a
SecurityException
. A subclass must override this method if listening to a
local network port is to be permitted with a security manager installed.
20.17.25
public void checkAccept(String host, int port)
throws SecurityException
The general contract of this method is that it should throw a
SecurityException
if accepting a connection from the indicated
port
 of the indicated network
host
is not permitted.
This method is invoked for the current security manager ( 20.18.4) by method
accept
 of class
java.net.ServerSocket
. (This class is not documented in this
specification. See
The Java Application Programming Interface
.)
The
checkAccept
 method defined by class
SecurityManager
 always throws
a
SecurityException
. A subclass must override this method if accepting a net 
work connection is to be permitted with a security manager installed.
20.17.26
public void checkSetFactory()
throws SecurityException
The general contract of this method is that it should throw a
SecurityException
if installing a  factory  for a socket, server socket, URL, or URL connection is not
permitted.
This method is invoked for the current security manager ( 20.18.4) by:
method
setSocketFactory
 of class
java.net.ServerSocket
method
setSocketImplFactory
 of class
java.net.Socket
method
setURLStreamHandlerFactory
 of class
java.net.URL
method
setContentHandlerFactory
of class
java.net.URLConnection
(These classes are not documented in this specification. See
The Java Application
Programming Interface
.)
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