On Fri, Nov 18, 2011 at 12:14 PM, S. Dale Morrey <[email protected]> wrote: >> Yes, it is possible. Is your wife using Windows? Does she launch the app >> with a shortcut, or does she just double-click on a .jar file? When you >> run "java --version" from a command-prompt, what version is reported (I'm >> assuming, it will say that it is Java 6 and not 7)? > > Actually that's a good point, we both bought a couple of new Windows 7 > laptops a couple of weeks ago. And yes she just double clicks the jar > file. I'll ask her the output of java --version when I get home > tonight. > I wonder how you set the default JVM for Win7 if it turns out to be Java 6? > Win 7 admin isn't exactly my cup of tea. > >> >> Java is backward compatible, but not forward. A Java 6 JRE doesn't know >> how to read .class files that were compiled with a Java 7 compiler. That >> is the most likely explanation. >> >> -Bryan > > I've always written to Java 5 or 6 and never tried 7, but I do > remember a couple of times running a Java 5 app on a 6 machine and > having it /puke on itself. Seemed like the message was quite > articulate about the issue. On the other hand, my wife's response > thus far is something along the lines of... "It's throwing some sort > of error, please fix it." Didn't really think that gave me much > leverage to ask more detailed questions. At least not if I want to > eat tonight :)
That would be exactly the opposite of what I meant to write. I meant running a Java 6 app on a Java 5 machine. /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
