Better UnknownHostException in RubySocket class
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Key: JRUBY-3534
URL: http://jira.codehaus.org/browse/JRUBY-3534
Project: JRuby
Issue Type: Improvement
Components: Core Classes/Modules
Affects Versions: JRuby 1.2
Environment: OS: Linux engel 2.6.28-ARCH #1 SMP PREEMPT Tue Mar 17
06:42:43 UTC 2009 i686 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz GenuineIntel
GNU/Linux
Java: java version "1.6.0_12" \ Java(TM) SE Runtime Environment (build
1.6.0_12-b04) \ Java HotSpot(TM) Server VM (build 11.2-b01, mixed mode)
MRI: ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-linux]
Reporter: Dharivs Hax
Priority: Trivial
Attachments: main.rb
While handling UnkownHostException in RubySocket class, instead of giving a
hard-coded message in the thrown sockerr, it would be more clear if it throws
this with the UnknownHostException's message.
For example, executing the attached script which creates a Webrick HTTPServer,
by default on port 80, as a non-privileged user, you get this:
[2009-03-26 22:53:56] INFO WEBrick 1.3.1
[2009-03-26 22:53:56] INFO ruby 1.8.6 (2009-03-16) [java]
[2009-03-26 22:53:56] WARN TCPServer Error: initialize: name or service not
known
/home/dharivs/software/opt/jruby-1.2.0/lib/ruby/1.8/webrick/utils.rb:73:in
`new': initialize: name or service not known (SocketError)
from
/home/dharivs/software/opt/jruby-1.2.0/lib/ruby/1.8/webrick/utils.rb:73:in
`create_listeners'
from
/home/dharivs/software/opt/jruby-1.2.0/lib/ruby/1.8/webrick/utils.rb:70:in
`each'
from
/home/dharivs/software/opt/jruby-1.2.0/lib/ruby/1.8/webrick/utils.rb:70:in
`create_listeners'
from
/home/dharivs/software/opt/jruby-1.2.0/lib/ruby/1.8/webrick/server.rb:75:in
`listen'
from
/home/dharivs/software/opt/jruby-1.2.0/lib/ruby/1.8/webrick/server.rb:63:in
`initialize'
from
/home/dharivs/software/opt/jruby-1.2.0/lib/ruby/1.8/webrick/httpserver.rb:24:in
`initialize'
from src/main.rb:26
But if you execute the same under MRI, you get this, which is more clear:
[2009-03-26 22:48:24] INFO WEBrick 1.3.1
[2009-03-26 22:48:24] INFO ruby 1.8.7 (2008-08-11) [i686-linux]
[2009-03-26 22:48:24] WARN TCPServer Error: Permission denied - bind(2)
[2009-03-26 22:48:24] WARN TCPServer Error: Permission denied - bind(2)
/usr/lib/ruby/1.8/webrick/utils.rb:73:in `initialize': Permission denied -
bind(2) (Errno::EACCES)
from /usr/lib/ruby/1.8/webrick/utils.rb:73:in `new'
from /usr/lib/ruby/1.8/webrick/utils.rb:73:in `create_listeners'
from /usr/lib/ruby/1.8/webrick/utils.rb:70:in `each'
from /usr/lib/ruby/1.8/webrick/utils.rb:70:in `create_listeners'
from /usr/lib/ruby/1.8/webrick/server.rb:75:in `listen'
from /usr/lib/ruby/1.8/webrick/server.rb:63:in `initialize'
from /usr/lib/ruby/1.8/webrick/httpserver.rb:24:in `initialize'
from src/main.rb:26:in `new'
from src/main.rb:26
Maybe UnknownHostException doesn't give more insight about the cause of itself,
but it would be worth to check this, because I find myself fighting with this
simple error and I didn't find any answer about this.
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