Re: Building Cayenne on Java 6

From: Michael Gentry (blacknex..mail.com)
Date: Fri Dec 28 2007 - 14:10:28 EST

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    Fortunately (?), Apple hasn't put Java 6 on my computer yet. :-)

    On Dec 28, 2007 1:59 PM, Kevin Menard <kmenar..ervprise.com> wrote:
    > .. . . is likely going to be a pipedream.
    >
    > It appears Sun went out of their way to make the interface changes
    > incompatible between Java 5 & Java 6. Not only do the interface changes add
    > new methods, but these new methods use new types. So, throwing runtime
    > exceptions isn't an option because the types aren't available to a Java 5
    > compiler. Not implementing a methods won't work in a Java 6 compiler
    > because the interface isn't fully implemented at that point. So, we have a
    > software engineering 101 principle violated.
    >
    > Fortunately, a Cayenne JAR built in Java 5 works fine in Java 6. Anyone
    > that wants to build the code in Java 6 is going to have problems though.
    > Oh, and just to make matters worse, the Windows Java 6 installer throws its
    > executables into %System32% so they get found on the path first. So, not
    > only do you have to make Java 5 your JAVA_HOME (in order for mvn to work),
    > but you also have to blow out those binaries in order for the correct javac
    > to be used in general.
    >
    > Lots of fun. Thank you, Sun.
    >
    > --
    > Kevin
    >
    >



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