Exception on Windows when opening page in browser

[gphilipp]

Figwheel works ok on Mac but I have this exception on windows (both on personal and work computer) when I go to http://localhost:3449in the browser. Not sure of the impact, still at early steps of discovering how figwheel works for me.

Prompt will show when figwheel connects to your application
To quit, type: :cljs/quit
java.lang.NullPointerException
        at sun.misc.MetaIndex.mayContain(Unknown Source)
        at sun.misc.URLClassPath$JarLoader.getResource(Unknown Source)
        at sun.misc.URLClassPath.getResource(Unknown Source)
        at sun.misc.URLClassPath.getResource(Unknown Source)
java.lang.NullPointerException
        at java.lang.ClassLoader.getBootstrapResource(Unknown Source)
        at java.lang.ClassLoader.getResource(Unknown Source)
        at java.lang.ClassLoader.getResource(Unknown Source)
        at clojure.java.io$resource.invoke(io.clj:441)
        at clojure.java.io$resource.invoke(io.clj:440)
ClojureScript:cljs.user>        at cljs.closure$source_for_namespace.invoke(closure.clj:487)
        at cljs.repl$load_namespace.invoke(repl.clj:57)
        at cljs.repl$load_dependencies.invoke(repl.clj:77)
        at cljs.repl$evaluate_form.invoke(repl.clj:130)
        at cljs.repl$repl_STAR_.invoke(repl.clj:284)
        at figwheel_sidecar.repl$repl.invoke(repl.clj:64)
        at figwheel_sidecar.auto_builder$autobuild_repl.invoke(auto_builder.clj:221)
        at figwheel_sidecar.auto_builder$run_autobuilder.invoke(auto_builder.clj:236)
        at user$eval12412.invoke(form-init1595373007279590366.clj:1)
        at clojure.lang.Compiler.eval(Compiler.java:6703)
        at clojure.lang.Compiler.eval(Compiler.java:6693)
        at clojure.lang.Compiler.load(Compiler.java:7130)
        at clojure.lang.Compiler.loadFile(Compiler.java:7086)
        at clojure.main$load_script.invoke(main.clj:274)
        at clojure.main$init_opt.invoke(main.clj:279)
        at clojure.main$initialize.invoke(main.clj:307)
        at clojure.main$null_opt.invoke(main.clj:342)
        at clojure.main$main.doInvoke(main.clj:420)
        at clojure.lang.RestFn.invoke(RestFn.java:421)
        at clojure.lang.Var.invoke(Var.java:383)
        at clojure.lang.AFn.applyToHelper(AFn.java:156)
        at clojure.lang.Var.applyTo(Var.java:700)
        at clojure.main.main(main.java:37)

[mavbozo]

Same with me too. I use Windows 7.

But the NPE only occurs once when starting lein figwheel. The cljs compilation and reloading still works. CSS reloading also works.

[swannodette]

@gphilipp that's another Windows bug in ClojureScript that has been fixed in master.

[gphilipp]

This one I guess ?
clojure/clojurescript@80d46bd

[swannodette]

@gphilipp just cut 0.0-2740, give it a try

[mavbozo]

Tested using 0.0-2740 and the exception gone.

[gphilipp]

It fixed the issue for me as well, thx @swannodette !