Re: [Java Spec Report] javac -source 1.5 @ mac

Pat LaVarre wrote:
> We cannot easily grant the natural wish to try javac -source 1.5 in Mac OS X.  Although the 
> javac, "written once", runs as a .class compiled from .java, those .class files actually vary 
> slightly by system, and do not "run anywhere".
> 
> True or false or irredeemably wrong-headed?

javac is system-independent.  The class files for javac in tools.jar shipped 
with Tiger will run on any Tiger VM (they were compiled with -target 1.5).  The 
jsr14 prototype is derived from the same sources and can be run on any 1.4.2 VM.

The 1.5 class file format is not the same as the 1.4 class file format with the 
version number incremented, so decrementing the version number is likely to 
result in ill-formed class files.



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