Leiningen 2.8.2, cider-nrepl 0.19.0-SNAPSHOT, nrepl 0.5.3 ClassCastException nrepl.transport.Transport

[leblowl]

Not sure what is going on, but just updated Leiningen and getting this error which references cider-nrepl. Not even sure how to start tracking this one down. Any thoughts? I am going to start by updating to Java 11 since I am planning to do that anyway.

Expected behavior

lein repl launches REPL

Actual behavior

Warning: implicit middleware found: cider-nrepl.plugin/middleware 
Please declare all middleware in :middleware as implicit loading is deprecated.
Warning: implicit hook found: lein-cprop.plugin/hooks 
Hooks are deprecated and will be removed in a future version.
Warning: implicit hook found: lein-environ.plugin/hooks 
Hooks are deprecated and will be removed in a future version.
WARNING: partition already refers to: #'clojure.core/partition in namespace: tools.db, being replaced by: #'tools.db/partition
WARNING: type already refers to: #'clojure.core/type in namespace: tools.db.enum, being replaced by: #'tools.db.enum/type
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-apropos, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-classpath, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-complete, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-debug, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-enlighten, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-format, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-info, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-inspect, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-macroexpand, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-slurp, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-ns, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-out, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-content-type, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-slurp, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-pprint, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-pprint-fn, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-profile, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-refresh, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-resource, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-spec, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-stacktrace, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-test, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-trace, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-tracker, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-undef, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-version, see nrepl.middleware/set-descriptor!
nREPL server started on port 36457 on host 127.0.0.1 - nrepl://127.0.0.1:36457
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by cider.inlined_deps.orchard.v0v3v4_20181106v231743_1.dynapath.v0v2v5.dynapath.defaults$eval55350$fn__55351 to method java.net.URLClassLoader.addURL(java.net.URL)
WARNING: Please consider reporting this to the maintainers of cider.inlined_deps.orchard.v0v3v4_20181106v231743_1.dynapath.v0v2v5.dynapath.defaults$eval55350$fn__55351
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Exception in thread "nREPL-worker-0" java.lang.ClassCastException: cider.nrepl.middleware.track_state$make_transport$reify__55843 cannot be cast to nrepl.transport.Transport
	at nrepl.middleware.pr_values$printing_transport$reify__52211.send(pr_values.clj:34)
	at nrepl.middleware.interruptible_eval$evaluate$fn__52248$fn__52262.invoke(interruptible_eval.clj:125)
	at clojure.main$repl$fn__8581.invoke(main.clj:263)
	at clojure.main$repl.invokeStatic(main.clj:261)
	at clojure.main$repl.doInvoke(main.clj:177)
	at clojure.lang.RestFn.invoke(RestFn.java:1523)
	at nrepl.middleware.interruptible_eval$evaluate$fn__52248.invoke(interruptible_eval.clj:83)
	at clojure.lang.AFn.applyToHelper(AFn.java:152)
	at clojure.lang.AFn.applyTo(AFn.java:144)
	at clojure.core$apply.invokeStatic(core.clj:657)
	at clojure.core$with_bindings_STAR_.invokeStatic(core.clj:1965)
	at clojure.core$with_bindings_STAR_.doInvoke(core.clj:1965)
	at clojure.lang.RestFn.invoke(RestFn.java:425)
	at nrepl.middleware.interruptible_eval$evaluate.invokeStatic(interruptible_eval.clj:81)
	at nrepl.middleware.interruptible_eval$evaluate.invoke(interruptible_eval.clj:50)
	at nrepl.middleware.interruptible_eval$interruptible_eval$fn__52291$fn__52294.invoke(interruptible_eval.clj:221)
	at nrepl.middleware.interruptible_eval$run_next$fn__52286.invoke(interruptible_eval.clj:189)
	at clojure.lang.AFn.run(AFn.java:22)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:844)

Steps to reproduce the problem

profile:

{:user {:plugins [[cider/cider-nrepl "0.19.0-SNAPSHOT"]]
           :dependencies [[nrepl "0.5.3"]]}}

change into my private project directory and run lein repl

Environment & Version information

cider-nrepl version

0.19.0-SNAPSHOT

Java version

java 10.0.2 2018-07-17

Operating system

Linux

[leblowl]

I got a working REPL by using this profile as outlined in the README:

{:user {:dependencies [[cider/cider-nrepl "0.19.0-SNAPSHOT"]
                       [nrepl "0.5.3"]]
        :repl-options {:nrepl-middleware
                 [cider.nrepl/wrap-apropos
                  cider.nrepl/wrap-classpath
                  cider.nrepl/wrap-complete
                  cider.nrepl/wrap-debug
                  cider.nrepl/wrap-format
                  cider.nrepl/wrap-info
                  cider.nrepl/wrap-inspect
                  cider.nrepl/wrap-macroexpand
                  cider.nrepl/wrap-ns
                  cider.nrepl/wrap-spec
                  cider.nrepl/wrap-pprint
                  cider.nrepl/wrap-pprint-fn
                  cider.nrepl/wrap-profile
                  cider.nrepl/wrap-refresh
                  cider.nrepl/wrap-resource
                  cider.nrepl/wrap-stacktrace
                  cider.nrepl/wrap-test
                  cider.nrepl/wrap-trace
                  cider.nrepl/wrap-out
                  cider.nrepl/wrap-undef
                  cider.nrepl/wrap-version]}}}

I think the issue is something to do with how Leiningen is handling the nrepl-middleware? Not entirely sure how all this stuff works.

I still get this output:

[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-apropos, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-classpath, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-complete, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-debug, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-format, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-info, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-inspect, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-macroexpand, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-ns, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-spec, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-pprint, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-pprint-fn, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-profile, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-refresh, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-resource, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-stacktrace, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-test, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-trace, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-out, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-undef, see nrepl.middleware/set-descriptor!
[WARNING] No nREPL middleware descriptor in metadata of #'cider.nrepl/wrap-version, see nrepl.middleware/set-descriptor!

But it works

[bbatsov]

@leblowl If I had to guess I'd say you probably have something loading the legacy tools.nrepl in your deps or in your user.clj. The warnings you get would normally mean that cider-nrepl found that you had tools.nrepl loaded at the time it was loading (instead of the modern nREPL).

I think the issue is something to do with how Leiningen is handling the nrepl-middleware? Not entirely sure how all this stuff works.

Seems to me that you've configured the middleware properly.

[leblowl]

I saw tools.nrepl in a stacktrace so I think you are right. I will scan the deps, maybe something else is bringing it in. Thanks

…

On Mon, Dec 17, 2018 at 1:22 AM Bozhidar Batsov ***@***.***> wrote: @leblowl <https://github.com/leblowl> If I had to guess I'd say you probably have something loading the legacy tools.nrepl in your deps or in your user.clj. The warnings you get would normally mean that cider-nrepl found that you had tools.nrepl loaded at the time it was loading (instead of the modern nREPL). I think the issue is something to do with how Leiningen is handling the nrepl-middleware? Not entirely sure how all this stuff works. Seems to me that you've configured the middleware properly. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#574 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AD2siG61pVIHa3TUtCehOy1ADvsg65i_ks5u51RcgaJpZM4ZT-86> .

-- Lucas Leblow 925-276-2056

[bbatsov]

@leblowl Did you manage to figure this out?

[leblowl]

Sorry, got sidetracked on another task. Apparently figwheel-sidecar depends on tools.nrepl and requires it. When I exclude tools.nrepl, figwheel complains. I removed figwheel-sidecar and both warnings and errors are gone. Thanks!

[bbatsov]

Got it!

I'll link this ticket to a related upstream issue bhauman/lein-figwheel#718

[danielcompton]

Btw, an easy way to figure out where a dependency is coming from is lein deps :why <group>/<artifact>.