Java error while running lein run command (Cannot invoke "java.lang.Character.charValue()" because "x" is null)

[zekzekus]

When I try lein run command I got the error below 👇 Might there be a version mismatch for one of the primary component?

❯ javac -version
javac 17

❯ java --version
openjdk 17 2021-09-14
OpenJDK Runtime Environment (build 17+35-2724)
OpenJDK 64-Bit Server VM (build 17+35-2724, mixed mode, sharing)

❯ clojure --version
Clojure CLI version 1.11.1.1347

❯ lein run
2023-08-13 09:29:50,339 [main] ERROR luminus.http-server - server failed to start on port
java.lang.NullPointerException: Cannot invoke "java.lang.Character.charValue()" because "x" is null
        at clojure.lang.RT.uncheckedIntCast(RT.java:1473)
        at aleph.http.server$start_server.invokeStatic(server.clj:650)
        at aleph.http.server$start_server.invoke(server.clj:584)
        at aleph.http$start_server.invokeStatic(http.clj:60)
        at aleph.http$start_server.invoke(http.clj:27)
        at luminus.http_server$start.invokeStatic(http_server.clj:19)
        at luminus.http_server$start.invoke(http_server.clj:15)
        at enion_backend.core$eval28069$fn__28070.invoke(core.clj:27)
        at mount.core$record_BANG_.invokeStatic(core.cljc:74)
        at mount.core$record_BANG_.invoke(core.cljc:73)
        at mount.core$up$fn__457.invoke(core.cljc:81)
        at mount.core$up.invokeStatic(core.cljc:80)
        at mount.core$up.invoke(core.cljc:78)
        at mount.core$bring.invokeStatic(core.cljc:247)
        at mount.core$bring.invoke(core.cljc:239)
        at mount.core$start.invokeStatic(core.cljc:289)
        at mount.core$start.doInvoke(core.cljc:281)
        at clojure.lang.RestFn.invoke(RestFn.java:397)
        at mount.core$start_with_args.invokeStatic(core.cljc:389)
        at mount.core$start_with_args.doInvoke(core.cljc:385)
        at clojure.lang.RestFn.invoke(RestFn.java:410)
        at enion_backend.core$start_app.invokeStatic(core.clj:52)
        at enion_backend.core$start_app.invoke(core.clj:50)
        at enion_backend.core$_main.invokeStatic(core.clj:61)
        at enion_backend.core$_main.doInvoke(core.clj:59)
        at clojure.lang.RestFn.invoke(RestFn.java:397)
        at clojure.lang.Var.invoke(Var.java:380)
        at user$eval28228.invokeStatic(form-init4819466814356749574.clj:1)
        at user$eval28228.invoke(form-init4819466814356749574.clj:1)
        at clojure.lang.Compiler.eval(Compiler.java:7194)
        at clojure.lang.Compiler.eval(Compiler.java:7184)
        at clojure.lang.Compiler.load(Compiler.java:7653)
        at clojure.lang.Compiler.loadFile(Compiler.java:7591)
        at clojure.main$load_script.invokeStatic(main.clj:475)
        at clojure.main$init_opt.invokeStatic(main.clj:477)
        at clojure.main$init_opt.invoke(main.clj:477)
        at clojure.main$initialize.invokeStatic(main.clj:508)
        at clojure.main$null_opt.invokeStatic(main.clj:542)
        at clojure.main$null_opt.invoke(main.clj:539)
        at clojure.main$main.invokeStatic(main.clj:664)
        at clojure.main$main.doInvoke(main.clj:616)
        at clojure.lang.RestFn.applyTo(RestFn.java:137)
        at clojure.lang.Var.applyTo(Var.java:705)
        at clojure.main.main(main.java:40)
Execution error (NullPointerException) at aleph.http.server/start-server (server.clj:650).
Cannot invoke "java.lang.Character.charValue()" because "x" is null

Full report at:
/var/folders/60/_zgg1c651tnc50r884s_w25w0000gn/T/clojure-6436788271937974564.edn

[ertugrulcetin]

Could you try with OpenJDK 14 (e.g. 14.0.2), could be third party lib's problem aleph

[ertugrulcetin]

@zekzekus is it resolved?

[zekzekus]

@zekzekus is it resolved?

I couldn't convince myself to install idk 14 which is not included with default asdf Java plugin by hand. Any other version suggestions? :)

[ertugrulcetin]

JDK 8 maybe

[john-shaffer]

Try lein run -p 3000