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`ObjectSpace.each_object.to_a` raises `ArrayIndexOutOfBoundsException` #4461

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javierhonduco opened this Issue Jan 27, 2017 · 4 comments

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javierhonduco commented Jan 27, 2017

Environment

jruby 9.1.5.0 (2.3.1) 2016-09-07 036ce39 Java HotSpot(TM) 64-Bit Server VM 24.65-b04 on 1.7.0_67-b01 +jit [darwin-x86_64]

Darwin MacBook-Air-de-Javier-3.local 16.1.0 Darwin Kernel Version 16.1.0: Wed Oct 19 20:31:56 PDT 2016; root:xnu-3789.21.4~4/RELEASE_X86_64 x86_64

Expected Behavior

~ ruby -e "puts ObjectSpace.each_object.to_a"

Should print all living objects.

Actual Behavior

An ArrayIndexOutOfBounds Exception is raised

~ ruby -e "puts ObjectSpace.each_object.to_a"
Unhandled Java exception: java.lang.ArrayIndexOutOfBoundsException: 0
java.lang.ArrayIndexOutOfBoundsException: 0
  each_objectInternal at org/jruby/RubyObjectSpace.java:152
          each_object at org/jruby/RubyObjectSpace.java:181
                 call at org/jruby/RubyObjectSpace$INVOKER$s$0$1$each_object.gen:-1
              finvoke at org/jruby/RubyClass.java:522
               invoke at org/jruby/runtime/Helpers.java:395
           callMethod at org/jruby/RubyBasicObject.java:385
                 each at org/jruby/RubyEnumerator.java:323
                 call at org/jruby/RubyEnumerator$INVOKER$i$each.gen:-1
              finvoke at org/jruby/RubyClass.java:512
               invoke at org/jruby/runtime/Helpers.java:383
             callEach at org/jruby/RubyEnumerable.java:102
                 to_a at org/jruby/RubyEnumerable.java:459
                 call at org/jruby/RubyEnumerable$INVOKER$s$to_a.gen:-1
         cacheAndCall at org/jruby/runtime/callsite/CachingCallSite.java:318
                 call at org/jruby/runtime/callsite/CachingCallSite.java:131
    invokeOther1:to_a at -e:1
               <main> at -e:1
  invokeWithArguments at java/lang/invoke/MethodHandle.java:599
                 load at org/jruby/ir/Compiler.java:111
            runScript at org/jruby/Ruby.java:834
          runNormally at org/jruby/Ruby.java:749
          runNormally at org/jruby/Ruby.java:767
          runFromMain at org/jruby/Ruby.java:580
        doRunFromMain at org/jruby/Main.java:425
          internalRun at org/jruby/Main.java:313
                  run at org/jruby/Main.java:242
                 main at org/jruby/Main.java:204

@javierhonduco javierhonduco changed the title from `ObjectSpace.each_object` raises `ArrayIndexOutOfBoundsException` to `ObjectSpace.each_object.to_a` raises `ArrayIndexOutOfBoundsException` Jan 27, 2017

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kirs Jan 27, 2017

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For me it happens just for each_object:

$ jruby --version
jruby 9.1.7.0 (2.3.1) 2017-01-11 68056ae Java HotSpot(TM) 64-Bit Server VM 25.45-b02 on 1.8.0_45-b14 +jit [darwin-x86_64]
$ cat obj.rb
ObjectSpace.each_object do |obj|
end
$ jruby --dev obj.rb
Unhandled Java exception: java.lang.ArrayIndexOutOfBoundsException: 0
java.lang.ArrayIndexOutOfBoundsException: 0
       each_objectInternal at org/jruby/RubyObjectSpace.java:152
               each_object at org/jruby/RubyObjectSpace.java:181
                      call at org/jruby/RubyObjectSpace$INVOKER$s$0$1$each_object.gen:-1
                      call at org/jruby/internal/runtime/methods/DynamicMethod.java:196
              cacheAndCall at org/jruby/runtime/callsite/CachingCallSite.java:328
                 callBlock at org/jruby/runtime/callsite/CachingCallSite.java:141
                      call at org/jruby/runtime/callsite/CachingCallSite.java:145
  invokeOther1:each_object at obj.rb:1
                    <main> at obj.rb:1
       invokeWithArguments at java/lang/invoke/MethodHandle.java:625
                      load at org/jruby/ir/Compiler.java:90
                 runScript at org/jruby/Ruby.java:823
               runNormally at org/jruby/Ruby.java:742
               runNormally at org/jruby/Ruby.java:760
               runFromMain at org/jruby/Ruby.java:573
             doRunFromMain at org/jruby/Main.java:417
               internalRun at org/jruby/Main.java:305
                       run at org/jruby/Main.java:232
                      main at org/jruby/Main.java:204
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kirs commented Jan 27, 2017

For me it happens just for each_object:

$ jruby --version
jruby 9.1.7.0 (2.3.1) 2017-01-11 68056ae Java HotSpot(TM) 64-Bit Server VM 25.45-b02 on 1.8.0_45-b14 +jit [darwin-x86_64]
$ cat obj.rb
ObjectSpace.each_object do |obj|
end
$ jruby --dev obj.rb
Unhandled Java exception: java.lang.ArrayIndexOutOfBoundsException: 0
java.lang.ArrayIndexOutOfBoundsException: 0
       each_objectInternal at org/jruby/RubyObjectSpace.java:152
               each_object at org/jruby/RubyObjectSpace.java:181
                      call at org/jruby/RubyObjectSpace$INVOKER$s$0$1$each_object.gen:-1
                      call at org/jruby/internal/runtime/methods/DynamicMethod.java:196
              cacheAndCall at org/jruby/runtime/callsite/CachingCallSite.java:328
                 callBlock at org/jruby/runtime/callsite/CachingCallSite.java:141
                      call at org/jruby/runtime/callsite/CachingCallSite.java:145
  invokeOther1:each_object at obj.rb:1
                    <main> at obj.rb:1
       invokeWithArguments at java/lang/invoke/MethodHandle.java:625
                      load at org/jruby/ir/Compiler.java:90
                 runScript at org/jruby/Ruby.java:823
               runNormally at org/jruby/Ruby.java:742
               runNormally at org/jruby/Ruby.java:760
               runFromMain at org/jruby/Ruby.java:573
             doRunFromMain at org/jruby/Main.java:417
               internalRun at org/jruby/Main.java:305
                       run at org/jruby/Main.java:232
                      main at org/jruby/Main.java:204
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headius Jan 27, 2017

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Confirmed. AIOOBE for me both with and without -X+O (which enables full ObjectSpace features).

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headius commented Jan 27, 2017

Confirmed. AIOOBE for me both with and without -X+O (which enables full ObjectSpace features).

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javierhonduco Jan 28, 2017

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Thanks a lot!! 💞

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javierhonduco commented Jan 28, 2017

Thanks a lot!! 💞

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kirs Jan 28, 2017

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Thanks for fixing it! Does it make sense to add a regression test?

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kirs commented Jan 28, 2017

Thanks for fixing it! Does it make sense to add a regression test?

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