Unable to load rJava on R

Question

I wish to load rJava in R x64 3.1.2. OS- Windows 8.1 64 bit

Though installation seems to work fine:

  > install.packages(\"rJava\")
    Installing         


        

Answer 1

I got a similar error:

> library(rJava)
Error : .onLoad failed in loadNamespace() for 'rJava', details:
  call: inDL(x, as.logical(local), as.logical(now), ...)
  error: unable to load shared object 'C:/program files/R/R-3.1.2/library/rJava/libs/x64/rJava.dll':
  LoadLibrary failure:  The specified module could not be found.

My JAVA_HOME was pointing to JDK, rather than JRE.

> Sys.getenv("JAVA_HOME")
[1] "c:\\java\\jdk1.7.0_55"
> Sys.setenv(JAVA_HOME="c:\\java\\jdk1.7.0_55\\jre")

I could now load rJava and xlsx in R.