• using R version 2.15.3 (2013-03-01)
• using platform: i386-apple-darwin9.8.0 (32-bit)
• using session charset: UTF-8
• checking for file ‘Rdrools/DESCRIPTION’ ... OK
• checking extension type ... Package
• this is package ‘Rdrools’ version ‘0.0.2’
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking whether package ‘Rdrools’ can be installed ... OK
• checking installed package size ... OK
• checking package directory ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking DESCRIPTION meta-information ... OK
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking R files for non-ASCII characters ... OK
• checking R files for syntax errors ... OK
• checking whether the package can be loaded ... OK
• checking whether the package can be loaded with stated dependencies ... OK
• checking whether the package can be unloaded cleanly ... OK
• checking whether the namespace can be loaded with stated dependencies ... OK
• checking whether the namespace can be unloaded cleanly ... OK
• checking loading without being on the library search path ... OK
• checking for unstated dependencies in R code ... OK
• checking S3 generic/method consistency ... OK
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... OK
• checking Rd files ... OK
• checking Rd metadata ... OK
• checking Rd cross-references ... OK
• checking for missing documentation entries ... OK
• checking for code/documentation mismatches ... OK
• checking Rd \usage sections ... OK
• checking Rd contents ... OK
• checking for unstated dependencies in examples ... OK
• checking contents of ‘data’ directory ... OK
• checking data for non-ASCII characters ... OK
• checking data for ASCII and uncompressed saves ... OK
• checking examples ... ERROR
  Running examples in ‘Rdrools-Ex.R’ failed
  The error most likely occurred in:
  
  > ### Name: Rdrools-package
  > ### Title: a rules engine for R based on the popular Java Drools engine
  > ### Aliases: Rdrools-package Rdrools
  > ### Keywords: rulesSession runRules Rdrools
  >
  > ### ** Examples
  >
  > library(Rdrools)
  > data(class)
  > data(rules)
  > input.columns<-c("name", "class", "grade", "email")
  > output.columns<-c("address", "subject", "body")
  > rules.session<-rulesSession(rules, input.columns, output.columns)
  Error in .jnew("org/math/r/drools/DroolsService", rules, input.columns, :
  java.lang.UnsupportedClassVersionError: Bad version number in .class file
  Calls: rulesSession -> .jnew -> .External
  Execution halted
• elapsed time (check, wall clock): 0:31