[R] install rJava in Ubuntu 11.10

[John Kane]

I am trying to install rJava on a WUBI  Ubuntu 11.10 installation of R with no luck. I was originally trying to install the iplots package and encountered this rJava problem.

Code used:
install.packages("rJava")

(CRAN mirrors --Canada(ON) and Canada(QC2)

I installed iplots with no problem on Windows 7.

I know just about zero about Ubuntu or Linux in general so I have no idea what I am doing.

Any suggestions would be gratefully received.

I am getting the error/warning messages below.
=================================================

Cannot compile a simple JNI program. See config.log for details.

Make sure you have Java Development Kit installed and correctly registered in R.
If in doubt, re-run "R CMD javareconf" as root.

ERROR: configuration failed for package ‘rJava’
* removing ‘/home/john/R/i686-pc-linux-gnu-library/2.13/rJava’

The downloaded packages are in
        ‘/tmp/RtmphfnJ62/downloaded_packages’
Warning message:
In install.packages("rJava") :
  installation of package 'rJava' had non-zero exit status
=========================================
EXISTING JAVA INSTALLAION

john at ubuntu:~$ java -version
java version "1.6.0_23"
OpenJDK Runtime Environment (IcedTea6 1.11pre) (6b23~pre11-0ubuntu1.11.10.1)
OpenJDK Client VM (build 20.0-b11, mixed mode, sharing)

=======================================

I have re-run "R CMD javareconf" as root.

Does the R CMC javareconf need something added?
(i.e. R CMD javaconf xxx)

Do I really need a  Java Development Kit installed?
============================================
sessionInfo()
R version 2.13.1 (2011-07-08)
Platform: i686-pc-linux-gnu (32-bit)

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
 [5] LC_MONETARY=C              LC_MESSAGES=en_US.UTF-8   
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

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