JRuby

Can't instantiate ThreadGroup subclass with arguments

Details

  • Type: Bug Bug
  • Status: Resolved Resolved
  • Priority: Minor Minor
  • Resolution: Fixed
  • Affects Version/s: JRuby 1.6.7
  • Fix Version/s: JRuby 1.7.0.pre2
  • Component/s: Core Classes/Modules
  • Labels:
    None
  • Environment:
    Mac OS X Lion
  • Number of attachments :
    0

Description

class WorkerGroup < ThreadGroup
  def initialize(a,b,c)
    @args=[a,b,c]
  end
end

WorkerGroup.new(1,2,3)  # => raises ArgumentError
WorkerGroup.method(:new).arity  # => 0 (should be -1)

Workaround:

# redefine new
def self.new(*args)
  tg = super()
  tg.send(:initialize, *args)
  tg
end

Activity

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Charles Oliver Nutter added a comment -

Oh, interesting. I'll have a look.

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Charles Oliver Nutter added a comment - Oh, interesting. I'll have a look.
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Charles Oliver Nutter added a comment -

Easy one!

commit 010207e77252c2bc2da311ac360b0e3eac4a607f
Author: Charles Oliver Nutter <headius@headius.com>
Date:   Fri Jun 29 10:21:49 2012 -0500

    Fix JRUBY-6722
    
    Can't instantiate ThreadGroup subclass with arguments
    
    We had defined 'new' on ThreadGroup, when what we needed was an
    ObjectAllocator for the normal 'new' logic to work. With that fix,
    subclass initialize methods work fine.
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Charles Oliver Nutter added a comment - Easy one! commit 010207e77252c2bc2da311ac360b0e3eac4a607f Author: Charles Oliver Nutter <headius@headius.com> Date: Fri Jun 29 10:21:49 2012 -0500 Fix JRUBY-6722 Can't instantiate ThreadGroup subclass with arguments We had defined 'new' on ThreadGroup, when what we needed was an ObjectAllocator for the normal 'new' logic to work. With that fix, subclass initialize methods work fine.

People

  • Assignee:
    Charles Oliver Nutter
    Reporter:
    Kelvin Liu
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Dates

  • Created:
    Updated:
    Resolved: