This may be a daft question, but if I switch JVMs (from 12 to 8 ) on the command line, and I restart the repl, do I need to clean up anything to ensure that JVM 12 bytecode is gone? Or is it all in memory etc...?

I'm trying to track down a really really difficult to diagnose interop issue and I'm starting to run out of options.

same as lein

it's all in memory unless you've AOTed something to disk

you should post more specifics about the interop issue @dharrigan

I've posted the problem in #interop, no response yet.

bytecode is only created if you 1) AOT (and you typically tell it where to go, like target/classes) or 2) in memory when loading source. It's not cached anywhere else.

basically (and I don't really want to get into a crosspost/in-depth here), a one-liner in Kotlin message.toByteArray() where message = protobuf, fails miserably with clojure (.toByteArray message), with clojure complaining about illegalaccesserror. So, I even tryed to extract that code into a little kotlin module by itself and invoke kolin code from clojure (that does the same thing) but I see the same issue. It feels like the JVM isn't finding all the classes <shrug> no idea.

prob better to have this discussion in #interop

I see your message 🙂

with tools deps is there a way to add built java classes to the classpath ? For instance I have a project using GRPC which is protobuf java classes that are generated.

:paths

^ corresponds to classpath directly

or :extra-paths if you're in an alias

ok, so just add a path to where the classes exist

yup

to the output directory of protobuf, probably

gotcha, wasn’t sure if that worked for class files

for $dir/foo/bar/Something.class you'd add $dir

perfect

hrm in order to resolve conflicts between git deps & mvn deps (in this case ClojureScript) it should be possible to use :exclusions right? Has anyone else got this working?

I keep seeing: Error building classpath. Unable to compare versions for org.clojure/clojurescript: {:mvn/version "1.10.516", :deps/manifest :mvn} and {:git/url "[email protected]:clojure/clojurescript.git", :sha "13fde33d737b0d47bdaaf102ed8e1c49342ade3c", :deps/manifest :deps, :deps/root "~/.gitlibs/libs/org.clojure/clojurescript/13fde33d737b0d47bdaaf102ed8e1c49342ade3c"}

Odd because -Stree doesn't show org.clojure/clojurescript after my exclusions

@dnolen not sure if that msg connects to something above?

to clarify, I got the above error

then I ran clj -Stree and I saw ClojureScript coming from maven

I used -Stree to systematically remove ClojureScript maven artifacts via :exclusions

still get the same error

also I don't see ClojureScript except for the git one when I run clj -Spath

"got the above error" refers to what?

Error building classpath. Unable to compare versions for org.clojure/clojurescript: {:mvn/version "1.10.516", :deps/manifest :mvn} and {:git/url "[email protected]:clojure/clojurescript.git", :sha "13fde33d737b0d47bdaaf102ed8e1c49342ade3c", :deps/manifest :deps, :deps/root "~/.gitlibs/libs/org.clojure/clojurescript/13fde33d737b0d47bdaaf102ed8e1c49342ade3c"}

@alexmiller ^

(was that missing before?)

yes :)

now I see it, maybe slack being weird

the resolution algorithm may download things that don't show up in the final tree as it goes through the process of walking the deps and making decisions

I guess I'm confused as it to it barfs

and doesn't start

oh but maybe something adds it?

though I guess there's no way for me to see what?

well at some point it's encountering the maven version and then trying to decide whether it's newer/older than the git version

you can add a hidden verbose flag

clj -Sdeps '{:aliases {:v {:verbose true}}}' -A:v

not really designed to be understandable to anyone but me. I'm not sure you'll get the parent child linkage to know where it's coming in from that

if you specify the clojurescript as a top dep, it should never need to make a decision though, so I'd expect that to work regardless

if you want me to look at it in more depth, send me the full deps.edn and the verbose output if you have it, don't need to spam the channel here with it

let me see if I can just make this minimal

will drop something later, have to head for now

np