JDK-8243488 : Add tests for set/get SendBufferSize and getReceiveBufferSize in DatagramSocket
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.net
  • Affected Version: 8,11,15
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-04-23
  • Updated: 2021-03-25
  • Resolved: 2020-05-05
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JDK 11 JDK 15
11.0.10Fixed 15 b22Fixed
Related Reports
Relates :  
JDK-8230211 - Prepare DatagramSocket for alternative DatagramSocketImpl
Relates :  
JDK-8242885 - PlainDatagramSocketImpl doesn���t allow for the sending of IPv6 datagrams on macOS with sizes between 65508-65527 bytes
Relates :  
JDK-8239355 - (dc) Initial value of SO_SNDBUF should allow sending large datagrams (macOS)
Description
Tests need to be added to increase test coverage for the DatagramSocket class. 
Currently, the following methods are not covered: 

`DatagramSocket.getSendBufferSize()`
`DatagramSocket.setSendBufferSize(int size)`
`DatagramSocket.getReceiveBufferSize()`
Comments
Another possibility is to change the provider in the backported test to skip DatagramChannel::socket when testing for initial buffer size on mac.
11-12-2020
Thanks for the hint, Daniel. I was already wondering but didn't have the time to dig deeper yet. Will take care of a backport of JDK-8239355 to OpenJDK 11u.
10-12-2020
Note: the SendBufferSize test will fail on macOS for the DatagramSocketAdaptor unless JDK-8239355 is present.
10-12-2020
Fix Request (11u) This change extends the testing. Patch does not apply cleanly because the old test is written differently. 11u RFR (acked by phh): https://mail.openjdk.java.net/pipermail/jdk-updates-dev/2020-November/004141.html. Linux x86_64 passes new tests.
16-11-2020
URL: https://hg.openjdk.java.net/jdk/jdk/rev/cf9358cd555b User: pconcannon Date: 2020-05-05 17:35:48 +0000
05-05-2020