Array#select! leads to exception: NoMethodError: undefined method `<=' for
nil:NilClass
---------------------------------------------------------------------------------------
Key: JRUBY-5574
URL: http://jira.codehaus.org/browse/JRUBY-5574
Project: JRuby
Issue Type: Bug
Affects Versions: JRuby 1.6RC3
Environment: jruby-1.6.0.RC3 in 1.9.2 mode
Ubuntu 10.04 LTS
2.6.32-28-generic #55-Ubuntu SMP Mon Jan 10 21:21:01 UTC 2011 i686 GNU/Linux
java version "1.6.0_20"
OpenJDK Runtime Environment (IcedTea6 1.9.5) (6b20-1.9.5-0ubuntu1~10.04.1)
OpenJDK Server VM (build 19.0-b09, mixed mode)
Reporter: Robert Pankowecki
Assignee: Thomas E Enebo
IS:
def foo
result = [1,2,3,4,5,6,5,4,3,2,1]
result.select!{|x| x <= 5}
result.select!{|x| x <= 3}
result.select!{|x| x >= 2}
result
end
foo
NoMethodError: undefined method `<=' for nil:NilClass
from org/jruby/RubyBasicObject.java:1654:in `method_missing'
from
/home/rupert/.rvm/gems/jruby-1.6.0.RC3/gems/activesupport-3.0.5/lib/active_support/whiny_nil.rb:48:in
`method_missing'
from (irb):17:in `foo'
from org/jruby/RubyArray.java:2387:in `select!'
from (irb):17:in `foo'
from (irb):21:in `evaluate'
from org/jruby/RubyKernel.java:1092:in `eval'
from org/jruby/RubyKernel.java:1417:in `loop'
from org/jruby/RubyKernel.java:1204:in `catch'
from org/jruby/RubyKernel.java:1204:in `catch'
from
/home/rupert/.rvm/gems/jruby-1.6.0.RC3/gems/railties-3.0.5/lib/rails/commands/console.rb:44:in
`start'
from
/home/rupert/.rvm/gems/jruby-1.6.0.RC3/gems/railties-3.0.5/lib/rails/commands/console.rb:8:in
`start'
from
/home/rupert/.rvm/gems/jruby-1.6.0.RC3/gems/railties-3.0.5/lib/rails/commands.rb:23:in
`(root)'
from org/jruby/RubyKernel.java:1046:in `require'
from script/rails:6:in `(root)'
jruby-1.6.0.RC3 :022 >
MRI:
ruby-1.9.2-p136 :001 > def foo
ruby-1.9.2-p136 :002?> result = [1,2,3,4,5,6,5,4,3,2,1]
ruby-1.9.2-p136 :003?> result.select!{|x| x <= 5}
ruby-1.9.2-p136 :004?> result.select!{|x| x <= 3}
ruby-1.9.2-p136 :005?> result.select!{|x| x >= 2}
ruby-1.9.2-p136 :006?> result
ruby-1.9.2-p136 :007?> end
nil
ruby-1.9.2-p136 :008 > foo
[
[0] 2,
[1] 3,
[2] 3,
[3] 2
]
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