Imansible caricare il pacchetto R xlsx su Mac OS 10.11

Posso caricare i pacchetti rJava e xlsxjars, ma ottengo un “Imansible caricare JVM” quando eseguo la libreria (xlsx). Di seguito sono i miei dettagli.

Versione del sistema operativo:

$ sw_vers ProductName: Mac OS X ProductVersion: 10.11 BuildVersion: 15A284 

Versione Java:

 $ java -version java version "1.8.0_65" Java(TM) SE Runtime Environment (build 1.8.0_65-b17) Java HotSpot(TM) 64-Bit Server VM (build 25.65-b01, mixed mode) 

Percorso Java:

 $ which java /usr/bin/java 

Java Home:

 $ /usr/libexec/java_home /Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home 

Versione R:

 $ R --version R version 3.2.3 (2015-12-10) -- "Wooden Christmas-Tree" Copyright (C) 2015 The R Foundation for Statistical Computing Platform: x86_64-apple-darwin13.4.0 (64-bit) 

Come lancio R:

 $ LD_LIBRARY_PATH=$(/usr/libexec/java_home)/jre/lib/server: open -a RStudio 

Caricamento dei pacchetti rJava e xlsxjars correttamente:

 > library(rJava) > library(xlsxjars) 

Cercando invano di caricare il pacchetto xlsx:

 > library(xlsx) 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. Error : .onLoad failed in loadNamespace() for 'xlsx', details: call: .jinit() error: JNI_GetCreatedJavaVMs returned -1 Error: package or namespace load failed for 'xlsx' 

Configurazione R:

 Matts-MacBook-Pro:~ matt$ R CMD javareconf Java interpreter : /usr/bin/java Java version : 1.8.0_65 Java home path : /Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/jre Java compiler : /usr/bin/javac Java headers gen.: /usr/bin/javah Java archive tool: /usr/bin/jar Non-system Java on OS X trying to compile and link a JNI program detected JNI cpp flags : -I$(JAVA_HOME)/../include -I$(JAVA_HOME)/../include/darwin detected JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm clang -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG -I/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/jre/../include -I/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/jre/../include/darwin -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -fPIC -Wall -mtune=core2 -g -O2 -c conftest.c -o conftest.o clang -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/Library/Frameworks/R.framework/Resources/lib -L/usr/local/lib -o conftest.so conftest.o -L/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/jre/lib/server -ljvm -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation JAVA_HOME : /Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/jre Java library path: $(JAVA_HOME)/lib/server JNI cpp flags : -I$(JAVA_HOME)/../include -I$(JAVA_HOME)/../include/darwin JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm Updating Java configuration in /Library/Frameworks/R.framework/Resources