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8220585: Incorrect code in MulticastSocket sample code

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Sample code shows that String.length() can be passed to a DatagramPacket along with String.getBytes(), but is incorrect for non-ASCII Strings.

Reviewed-by: martin, chegar
This commit is contained in:
Arthur Eubanks 2019-03-13 09:12:38 -07:00 committed by Arthur Eubanks
parent 1bfa5cee8c
commit 8c5313aa79
1 changed files with 3 additions and 2 deletions
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5
src/java.base/share/classes/java/net/MulticastSocket.java
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@ -52,8 +52,9 @@ import java.util.Set;
* InetAddress group = InetAddress.getByName("228.5.6.7");
* MulticastSocket s = new MulticastSocket(6789);
* s.joinGroup(group);
* DatagramPacket hi = new DatagramPacket(msg.getBytes(), msg.length(),
* group, 6789);
* byte[] msgBytes = msg.getBytes(StandardCharsets.UTF_8);
* DatagramPacket hi = new DatagramPacket(msgBytes, msgBytes.length,
* group, 6789);
* s.send(hi);
* // get their responses!
* byte[] buf = new byte[1000];