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8217997: Better socket support

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Reviewed-by: alanb, ahgross, chegar, igerasim
This commit is contained in:
Michael McMahon 2019-03-25 17:15:27 +00:00
parent 67a0aa7960
commit e4553cb2fa
4 changed files with 45 additions and 1 deletions
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18
src/java.base/share/classes/java/net/Socket.java
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@ -25,6 +25,8 @@
package java.net;
import sun.security.util.SecurityConstants;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
@ -182,12 +184,28 @@ class Socket implements java.io.Closeable {
*
* @throws SocketException if there is an error in the underlying protocol,
* such as a TCP error.
*
* @throws SecurityException if {@code impl} is non-null and a security manager is set
* and its {@code checkPermission} method doesn't allow {@code NetPermission("setSocketImpl")}.
*
* @since 1.1
*/
protected Socket(SocketImpl impl) throws SocketException {
checkPermission(impl);
this.impl = impl;
}
private static Void checkPermission(SocketImpl impl) {
if (impl == null) {
return null;
}
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(SecurityConstants.SET_SOCKETIMPL_PERMISSION);
}
return null;
}
/**
* Creates a stream socket and connects it to the specified port
* number on the named host.