Issue #11642 has been reported by Stefan Schulz.

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Bug #11642: Thread List Example - Wrong Output
https://bugs.ruby-lang.org/issues/11642

* Author: Stefan Schulz
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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http://ruby-doc.org/core-1.9.3/Thread.html

list вк array click to toggle source
Returns an array of Thread objects for all threads that are either runnableor stopped.

Thread.new { sleep(200) }
Thread.new { 1000000.times {|i| i*i } }
Thread.new { Thread.stop }
Thread.list.each {|t| p t}
produces:

WRONG:

#<Thread:0x401b3e84 sleep>
#<Thread:0x401b3f38 run>
#<Thread:0x401b3fb0 sleep>
#<Thread:0x401bdf4c run>

RIGHT:

#<Thread:0x00000000983c30 run>
#<Thread:0x00000000961ef0 sleep>
#<Thread:0x00000000961d88 dead>
#<Thread:0x00000000961c48 sleep>





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