[PATCH] ENV variables should be removed from the environment when set to nil
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Key: JRUBY-1244
URL: http://jira.codehaus.org/browse/JRUBY-1244
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Environment: rev 4066
Reporter: Dmitry Verkhovsky
Attachments: patch_r4066.txt
irb(main):001:0> ENV['test']="a"
=> "a"
irb(main):002:0> ENV.has_key?("test")
=> true
irb(main):003:0> ENV['test']=nil
=> nil
irb(main):004:0> ENV.has_key?("test")
=> false
Jirb(main):001:0> ENV['test']="a"
=> "a"
Jirb(main):002:0> ENV.has_key?("test")
=> true
Jirb(main):003:0> ENV['test']=nil
=> nil
Jirb(main):004:0> ENV.has_key?("test")
=> true
^^^^^^^^^ IT SHOULD BE FALSE HERE
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