>>>>> "David" == David Holmes <[EMAIL PROTECTED]> writes:
David> So Sun's JDK 1.4 VM is not required to support 1.5 class David> files. Of course it is up to the individual non-Sun VM's David> whether they will be able to load such class files and simply David> ignore the extra information that is now present. Remember David> that more than generics has changed the class file format. Yeah. As I understand it, Sun decided that their 1.5 compiler would not be able to handle "-source 1.5 -target 1.4", since that would mean "subsetting the language" (since, e.g., enum and foreach depend on classes not in 1.4). And in particular, I think 1.5 extends the ldc opcode to allow constant classes (a very nice addition if you ask me) -- so VMs would need at least one change. Ultimately, of course, it is us here on this list implementing Classpath. I'm sure when the time comes we can competently evaluate the merge according to our collective needs. Probably by that time we'll have a good idea of the minimal changes required to actually run the resulting Classpath... I do suspect that full handling of all the new 1.5 features (there are class file extensions for generic signatures, enums, varargs, and attributes, at least) won't be required. Tom _______________________________________________ Classpath mailing list [EMAIL PROTECTED] http://lists.gnu.org/mailman/listinfo/classpath
