Hello All,
Although running Java from R used to work, for some mysterious reason, it's
stopped.
Today when I tried to load a basic JDBC driver (or the sample .jinit()) code, I
got:
- JavaVM: requested Java version ((null)) not available. Using Java at ""
instead.
- JavaVM: Failed to load JVM: /bundle/Libraries/libserver.dylib
- JavaVM FATAL: Failed to load the jvm library.
I saw postings on StackOverflow about this issue, but none of the suggested
fixes helped.
I'm on Mac OS 10.13.
My JAVA_HOME is:
/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home
java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)
I'm using R: 3.3.3
Here is sample code that also throws this same error:
library(rJava)
.jinit() # this starts the JVM
s <- .jnew("java/lang/String", "Hello World!")
(this is the "hello world" equivalent from the rJava site)
----
I also tried to use Java 7 (rev. 51), which used to work, but that still fails.
Also tried a fresh install of R/RStudio on another machine with the same
results (same Java version, etc., however).
I suspect Java itself is working fine since JDBC code from Java programs has no
issues.
Not sure why loading Java in R stopped working, but would appreciate any
suggestions.
Thanks very much,
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