JDK-7132679 : (dc) DatagramChannel.send fails with ECONNREFUSED when not connected (Mac OSX)
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.nio
  • Affected Version: 7u4
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: os_x
  • CPU: x86
  • Submitted: 2012-01-24
  • Updated: 2012-03-28
  • Resolved: 2012-03-28
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JDK 7
7u4 b11Fixed
Related Reports
Relates :  
JDK-7132637 - (dc) DatagramChannel multicast tests failing on MacOSX
Description
java.net.PortUnreachableException
at sun.nio.ch.DatagramChannelImpl.send0(Native Method)
at sun.nio.ch.DatagramChannelImpl.sendFromNativeBuffer(DatagramChannelImpl.java:512)
at sun.nio.ch.DatagramChannelImpl.send(DatagramChannelImpl.java:491)
at sun.nio.ch.DatagramChannelImpl.send(DatagramChannelImpl.java:455)

Build: b201
Tests failed (Regression):
java/nio/channels/DatagramChannel/SelectWhenRefused.java
Comments
EVALUATION I've changed the synopsis to reflect what this isssue is about. It seems that on MacOSX (10.6.8 at least) that send will fails with ECONNREFUSED for an unconnected UDP socket. This error should only be returned for the connected case. I notice that Apple's JDK6 does not fail in the same way so they may be a socket option or other means to disable this error when not connected.
24-01-2012