This may be a dumb question, but I've tried for a while to get a Java 7 compatible version of Spark working on any machine, using the online installer. It fails with the following error message:
The install4j wizard could not find a Java(TM) Runtime Environment on your system. You can locate or download a suitable JRE. (minimum version: 1.5, maximum version: 1.6)
It seems to me that this is just in the install process, rather than in the code for Spark itself. Do I have that right?