JRuby raises SystemCallError instead of Errno::EMSGSIZE #4606
Description
Environment
jruby -v
jruby 9.0.5.0 (2.2.3) 2016-01-26 7bee00d Java HotSpot(TM) 64-Bit Server VM 25.74-b02 on 1.8.0_74-b02 +jit [darwin-x86_64]
uname -a
Darwin Davids-MacBook-Pro-6.local 16.4.0 Darwin Kernel Version 16.4.0: Thu Dec 22 22:53:21 PST 2016; root:xnu-3789.41.3~3/RELEASE_X86_64 x86_64
Summary
JRuby raises SystemCallError instead of Errno:: EMSGSIZE when writing too large of a message to a UDP socket. See dwbutler/logstash-logger#128.
Setup
$ nc -l 5228
Ruby script (run from irb):
require 'socket'
socket = UDPSocket.new
socket.connect('127.0.0.1', 5228)
socket.write "1"*100_000
Expected Behavior
MRI 2.4.1:
Errno::EMSGSIZE: Message too long
from (irb):4:in `write'
Actual Behavior
JRuby 9.0.5.0:
SystemCallError: Unknown error - No message available
from org/jruby/RubyIO.java:1437:in `write'
from org/jruby/RubyIO.java:1408:in `write'