[Rd] rJava Java debugger API

[Prof Brian Ripley]

*Now* you tell us rJava is involved.  Its lists are accessed via 
http://www.rforge.net/rJava/

On 17/06/2014 07:43, rmohan wrote:
> Hi,
>       I use rJava and call Java code that uses JVMTI code like this
>
>        VM vm = VM.getVM();
>         Universe universe = vm.getUniverse();
>          CollectedHeap heap = universe.heap();
>
> This code attaches to another JVM and to get its internals. This is legal
> Java and it works. But when I use rJava to call this code, the call is
> successfull and it throws an error. I believe there  is Java native
> Interface involved in the JVM and it seems to affect R. rJava is 0.9
>
>> version
>                 _
> platform       x86_64-apple-darwin10.8.0
> arch           x86_64
> os             darwin10.8.0
> system         x86_64, darwin10.8.0
> status
> major          3
> minor          1.0
> year           2014
> month          04
> day            10
> svn rev        65387
> language       R
> version.string R version 3.1.0 (2014-04-10)
> nickname       Spring Dance
>
>
> Thanks,
> Mohan
>
> Error: C stack usage  140730070087404 is too close to the limit
> Error: C stack usage  140730070156700 is too close to the limit
>> Warning: stack imbalance in '.Call', 59 then -1
> Warning: stack imbalance in '{', 56 then -4
>
>   *** caught bus error ***
> address 0x100583fd8, cause 'non-existent physical address'
>
>
>   *** caught bus error ***
> address 0x100583fd8, cause 'non-existent physical address'
>>
> Traceback:
>   1: run(timeoutMs)
>   2: service(timeout)
>
> Possible actions:
> 1: abort (with core dump, if enabled)
> 2: normal R exit
> 3: exit R without saving workspace
> 4: exit R saving workspace
> Selection: run(10)
>
>
>   *** caught segfault ***
> address 0x20057ea40, cause 'memory not mapped'
>
> Traceback:
>   1: run(timeoutMs)
>   2: service(timeout)
>
> Possible actions:
> 1: abort (with core dump, if enabled)
> 2: normal R exit
> 3: exit R without saving workspace
> 4: exit R saving workspace
>
>
>
> --
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> Sent from the R devel mailing list archive at Nabble.com.
>
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>


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595