Re: Is it still important that FindBugs run on 1.4 JVMs?

Of the two bytecode-mangling options, retroweaver and retrotranslator, 
both support enums.  My sense is that retrotranslator is a richer, 
better-maintained implementation.  Basically, retroweaver came first, 
the maintainer took a "break", the market decided that it had gone idle, 
and retrotranslator took the retroweaver concept, and added a lot of new 
features.  Retroweaver eventually came back to life.  The maintainer is 
kind of snarky about it, because the other project "stole his ideas." 
Both work, but if you're not actively using retroweaver, retrotranslator 
seems more mature at this point.

Bill Pugh wrote:
> The thing I miss the most at the moment is Java 1.5 enums.
>
> -target jsr14 works fine for generics, the new for loops, and other 
> syntactic sugar.
>
>     Bill
>
> On Jul 2, 2007, at 10:31 AM, Brian Goetz wrote:
>
> > I can't answer that, but a number of people who run on 1.4 do so 
> > because they're in somewhat locked-down environments where installing 
> > an "unsupported" VM is considered to be bordering on rogue.  So yes, I 
> > do believe we'd lose some users -- not sure how many.
> >
> > Right now, we're using -target jsr14 to generate 1.4-compatible JARs, 
> > right?  Is that approach not working?  We might also try 
> > retrotranslator, which does 5.0->1.4 bytecode mangling (including 
> > swapping in the backport for JUC classes).
> >
> > Bill Pugh wrote:
> > > I have some understanding for people who still deploy production 
> > > services on 1.4 JVMs.
> > > But is anyone still doing development on machines where a 1.5 JVM 
> > > isn't available?
> > > Is anyone still running Eclipse using a 1.4 JVM?
> > >     Bill
> > > On Jul 2, 2007, at 10:21 AM, Brian Goetz wrote:
> > > > When I speak at conferences, and ask people what VM they are using, 
> > > > about 40% still raise their hands for Java 1.4.
> > > >
> > > > Bill Pugh wrote:
> > > > > How important is it that FindBugs continue to run on 1.4 JVMs?
> > > > > As we move forward, writing some significant new code over the 
> > > > > summer, it is
> > > > > annoying to have to give up on the functionalities available in 
> > > > > Java 5.
> > > > > Bill
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