Dalla riga di comando, eseguendo javaws risulta il messaggio:
$ javaws
No Java runtime present, requesting install.
Unable to locate a Java Runtime to invoke.
$ java -version
java version "1.7.0_40"
Java(TM) SE Runtime Environment (build 1.7.0_40-b43)
Java HotSpot(TM) 64-Bit Server VM (build 24.0-b56, mixed mode)
$ /usr/libexec/java_home -V
Matching Java Virtual Machines (3):
1.7.0_40, x86_64: "Java SE 7" /Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home
1.6.0_51-b11-457, x86_64: "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0_51-b11-457.jdk/Contents/Home
1.6.0_51-b11-457, i386: "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0_51-b11-457.jdk/Contents/Home
Sto usando OSX 10.9.
Qual è il problema?