JDK-8243390 : Release Note: DatagramPacket.getPort() Returns 0 When the Port Is Not Set
  • Type: Sub-task
  • Component: core-libs
  • Sub-Component: java.net
  • Affected Version: 15
  • Priority: P4
  • Status: Closed
  • Resolution: Delivered
  • Submitted: 2020-04-22
  • Updated: 2021-05-14
  • Resolved: 2020-04-28
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JDK 15
15Resolved
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Description
In this release, the default port number for a datagram packet has been changed to 0. Previously, this value was -1, which was undocumented. The port can be retrieved by using `DatagramPacket::getPort`.