[R-SIG-Mac] rJava stops loading since I upgraded R to 3.4.0

[David Winsemius]

> On May 23, 2017, at 5:29 PM, David Winsemius <dwinsemius at comcast.net> wrote:
> 
> 
>> On May 23, 2017, at 4:44 PM, Christofer Bogaso <bogaso.christofer at gmail.com> wrote:
>> 
>> Hi David,
>> 
>> The file 'rJava.so' exists in my machine :
>> 
>>> file.exists('/Library/Frameworks/R.framework/Versions/3.4/Resources/library/rJava/libs/rJava.so')
>> 
>> [1] TRUE
>> 
>> Also the Javac version that I have :
>> 
>>> system('javac -version')
>> 
>> javac 1.6.0_65
>> 
>> Looks like mine is older than you. Do I need to download the latest?
>> In that case, do you suggest any link? As far as I know, javac comes
>> with Mac installed.
> 
> Yes, it does and some people seem to get success with that. I found that installing 1.8 (also confusingly known as "Java 8") resolved my difficulties with loading rJava. I'm not an expert, just reporting my ezxperience
>> 
>> On Peter's suggestion I also did sudo R CMD javareconf. However still
>> rJava couldnt be loaded.
> 
> For my machine:
> 
>> Sys.getenv()  # returns (among many other values)
> 
> 
> DYLD_LIBRARY_PATH        /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/

And I just notice another value in the returns from that command:

LD_LIBRARY_PATH           :@JAVA_LD@

-- 
David.
> 
> 
>> 
>> Any other idea? Thanks,
>> 
>> On Wed, May 24, 2017 at 4:28 AM, peter dalgaard <pdalgd at gmail.com> wrote:
>>> [Christofer seemed to have fallen off the cc: list, now included]
>>> 
>>>> On 24 May 2017, at 00:18 , David Winsemius <dwinsemius at comcast.net> wrote:
>>>> 
>>>> What version of the Java Runtime Environment is available? What do you get for:
>>>> 
>>>> system('javac -version')
>>>> #I get:
>>>> #javac 1.8.0_65
>>>> 
>>>> I think that version was working with rJava, but I followed the "critical" advice on the Java SDK webpage ...
>>>> 
>>>> ... and after updating I now  get
>>>> #javac 1.8.0_131
>>>> 
>>>> And rJava still loads without error. I'm not on Sierra, however.
>>>> 
>>> 
>>> I am, and rJava doesn't load here either. However after
>>> 
>>> sudo R CMD javareconf
>>> 
>>> it seems happy as a clam.
>>> 
>>> 
>>>> Good luck;
>>>> David,
>>> 
>>> --
>>> Peter Dalgaard, Professor,
>>> Center for Statistics, Copenhagen Business School
>>> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
>>> Phone: (+45)38153501
>>> Office: A 4.23
>>> Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
> 
> David Winsemius
> Alameda, CA, USA
> 
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David Winsemius
Alameda, CA, USA