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true.dup and false.dup blow up (Inconsistent with MRI) #5184

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aryeh-looker opened this issue May 22, 2018 · 2 comments
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true.dup and false.dup blow up (Inconsistent with MRI) #5184

aryeh-looker opened this issue May 22, 2018 · 2 comments
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ruby 2.5
Milestone
JRuby 9.2.0.0

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@aryeh-looker
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aryeh-looker commented May 22, 2018 •
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Environment

  • jruby-9.1.17.0
  • Mac OS X #10.13.3

Expected Behavior

# MRI 2.5.1
2.5.1 :002 > true.dup == true
 => true

Actual Behavior

jruby-9.1.17.0 :001 > true.dup == true
TypeError: can't dup TrueClass
	from org/jruby/RubyKernel.java:1906:in `dup'
	from (irb):1:in `<eval>'
	from org/jruby/RubyKernel.java:995:in `eval'
	from org/jruby/RubyKernel.java:1316:in `loop'
	from org/jruby/RubyKernel.java:1138:in `catch'
	from org/jruby/RubyKernel.java:1138:in `catch'
	from /Users/user/.rvm/rubies/jruby-9.1.17.0/bin/irb:13:in `<main>'
@enebo enebo added this to the JRuby 9.2.0.0 milestone May 22, 2018
@enebo enebo added the ruby 2.5 label May 22, 2018
@enebo
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enebo commented May 22, 2018

Ruby 2.3.x displays the error reported so JRuby 9.1.x does not have this issue. Upcoming JRuby 9.2.x will support 2.5.x so it is affected.

@headius
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headius commented May 23, 2018

JRuby 9.2 appears to match Ruby 2.5 behavior here.

@headius headius closed this as completed May 23, 2018
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