[R-SIG-Mac] using package xlsx

[Simon Urbanek]

Dennis,

there is a bug in the Oracle 1.7/1.8 Java which requires you to install Apple Java 1.6 even if you don't intend to use it, so installing Java from Oracle alone won't help - even if you re-complie rJava against 1.8 - you still have to follow the instructions and install Java from

http://support.apple.com/kb/DL1572

More on the bug in Oracle Java (still not fixed as of 1.8) at

https://bugs.openjdk.java.net/browse/JDK-7131356

There is a detailed discussion also at

https://github.com/s-u/rJava/issues/37

Cheers,
Simon


On Apr 8, 2015, at 5:12 PM, Dennis Fisher <fisher at plessthan.com> wrote:

> OS X Yosemite
> R 3.1.3
> 
> Colleagues
> 
> I have used the package xlsx successfully in the past.  Today, I attempted to use that package, the first time since I upgraded to Yosemite.  R responded to:
> 	library(“xlsx”)
> with
> 	No Java runtime present, requesting install.
> A popup then said “you need to install the legacy Java SE 6 runtime”
> 
> I updated all my packages, then I tried:
> 	library(“rJava”)
> The outcome is the same.
> 
> I installed Java (Java 8 Update 40), then tried again.  Same problem.  I can confirm that Java is installed:
>> PET633> java -version
>> java version "1.8.0_40"
>> Java(TM) SE Runtime Environment (build 1.8.0_40-b27)
>> Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
> 
> It appears that the rJava wants an old version of java — however, I can’t find that version at the Oracle website.  For curiosity, I tried to install Java SE 7 — the installer would not allow this once it found the newer version (8).  This suggests that installing version 6 will also not be permitted.
> 
> Any thoughts?
> 
> Dennis
> 
> Dennis Fisher MD
> P < (The "P Less Than" Company)
> Phone: 1-866-PLessThan (1-866-753-7784)
> Fax: 1-866-PLessThan (1-866-753-7784)
> www.PLessThan.com
> 
> _______________________________________________
> R-SIG-Mac mailing list
> R-SIG-Mac at r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-mac