Re: [DrJava] ack re jsr14 1.2

[Theo Y. <ot...@ri...>]

What ab

On Sun, 11 Aug 2002, Brian Stoler wrote:

> Date: Sun, 11 Aug 2002 20:29:37 -0700 (PDT)
> From: Brian Stoler <bs...@bs...>
> To: drj...@li...
> Subject: [DrJava] ack re jsr14 1.2
>
> I poked a lot and think I've got most of what I need to do the jsr14
> v1.2/javac 1.4.1 compiler adapter. There's just one huge problem: There is
> a somewhat unresolvable build dependency problem! Here's the catch: To
> compile the old compiler adapter, we need jsr14 1.0 (or javac < 1.4.1) in
> the classpath. But to compile the newer compiler adapter, we need jsr14
> 1.2 in the classpath. Yikes!
>
> So, I can see a couple of ways out of this situation:
>
> 1) Set up a framework like I used to talk about for having sub-projects
> that were compilable only sometimes. This same framework would apply to
> problems like this, as well as to OS-specific code. The idea is that the
> separate subprojects would be broken off into their own directories, and
> that on commit the class files would be committed as well as the source
> files. Then, the main project build system would take the committed class
> files and use them to compile. Thus, the main build would not need to
> satisfy the weird build-time dependencies of the various sub-modules.
>
> or, for just this problem:
>
> 2) Force all developers to have both JSR14 v1.0 and JSR14 v1.2 in their
> lib directory. Then, compile each's compiler adapter separately as a part
> of the compilation process, adding the relevant compiler to the classpath
> just for that compilation. I think this should work reasonably.
>
> What do you guys think? As I said, the actual issue of making a JSR14 v1.2
> compiler adapter is not really that hard, but it brings up this tough
> issue. :)
>
> BTW, one side tiny problem that's easy to fix is the fact that if you try
> to compile DrJava via Ant using JSR14 v1.2, it doesn't work. The reason is
> that JSR14 v1.2 seems to default to having generics off unless you pass
> "-gj" on the compiler command line. Anyhow, this can be done trivially in
> the build-common.xml task by putting a <compilerarg value="-gj" /> inside
> the <javac>. This will keep the build script working on JSR14 1.0 as
> well, but the one small catch is that it requires Ant 1.5 to execute. No
> big deal I guess.
>
> Anyway ... .
>
> -brian
>
> PS: As you can see, I'm still playing a bit with DrJava in my spare time.
> :) Another side project I'm beginning to investigate is creating a REPL
> module to put into Oracle's IDE JDeveloper. JDeveloper, by the way, is
> actually not bad (and they're not paying me to say this!). I mean, it
> helps a lot for making big goofy apps like Web applications, but it's also
> got some nice stuff like good code completion, etc. It is, however, a
> memory hog and pretty slow on my home P2/350. Also, the new version that's
> not out yet (9.0.3) is much better.
>
> Anyhow ... :)
>
>
>
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