rJava issues osx

[finestjava]

Downloading GitHub repo CommerceDataService/eu.us.opendata@master
from URL https://api.github.com/repos/CommerceDataService/eu.us.opendata/zipball/master
Installing eu.us.opendata
'/Library/Frameworks/R.framework/Resources/bin/R' --no-site-file --no-environ --no-save --no-restore --quiet CMD INSTALL
'/private/var/folders/t5/z84y08513157fhxj3cm3kw1h0000gn/T/RtmpbynetV/devtools77cc52eb6fec/CommerceDataService-eu.us.opendata-cc9f934'
--library='/Library/Frameworks/R.framework/Versions/3.5/Resources/library' --install-tests

• installing source package ‘eu.us.opendata’ ...
  Warning in .write_description(db, file.path(outDir, "DESCRIPTION")) :
  Unknown encoding with non-ASCII data: converting to ASCII
  ** R
  ** inst
  ** byte-compile and prepare package for lazy loading
  Error : .onLoad failed in loadNamespace() for 'rJava', details:
  call: dyn.load(file, DLLpath = DLLpath, ...)
  error: unable to load shared object '/Library/Frameworks/R.framework/Versions/3.5/Resources/library/rJava/libs/rJava.so':
  dlopen(/Library/Frameworks/R.framework/Versions/3.5/Resources/library/rJava/libs/rJava.so, 6): Library not loaded: /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Home/lib/server/libjvm.dylib
  Referenced from: /Library/Frameworks/R.framework/Versions/3.5/Resources/library/rJava/libs/rJava.so
  Reason: no suitable image found. Did find:
  /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Libraries/libjvm.dylib: mach-o, but wrong architecture
  /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Libraries/libclient.dylib: mach-o, but wrong architecture
  ERROR: lazy loading failed for package ‘eu.us.opendata’
• removing ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/eu.us.opendata’
  Installation failed: Command failed (1)

any guidance would be great.

harry osoff