Clojurians Log v2

So good with the new stack traces, @brandon.ringe! I almost smile when my code crashes now. 😃

@pez Can you make a screenshot of that?

I can do better than a screenshot (because @brandon.ringe is so awesome) 😀 https://calva.io/output/#stack-traces

nice!

Somebody just whispered into my ear that clj-kondo can do “find usages”. Is this available as a command in Calva somehow?

(👋 @borkdude) 🙂

I’m just getting started with Calva, so please forgive rookie errors. I’m getting loads of errors in the terminal whenever I jack-in (I don’t know how many because they exceed the number of lines the terminal retains). The errors are all of the form:

java.lang.NullPointerException: Cannot invoke "jdk.javadoc.internal.doclets.formats.html.HtmlConfiguration.getOptions()" because "this.configuration" is null
        at jdk.javadoc/jdk.javadoc.internal.doclets.formats.html.HtmlDoclet.getSupportedOptions(HtmlDoclet.java:292)
        at jdk.javadoc/jdk.javadoc.doclet.StandardDoclet.getSupportedOptions(StandardDoclet.java:93)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java.parser$parse_java$reify__3373.getSupportedOptions(parser.clj:77)
        at jdk.javadoc/jdk.javadoc.internal.tool.Start.getSupportedOptionsOf(Start.java:645)
        at jdk.javadoc/jdk.javadoc.internal.tool.Start.consumeDocletOption(Start.java:593)
        at jdk.javadoc/jdk.javadoc.internal.tool.Start.parseArgs(Start.java:799)
        at jdk.javadoc/jdk.javadoc.internal.tool.Start.parseAndExecute(Start.java:497)
        at jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:399)
        at jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:361)
        at jdk.javadoc/jdk.javadoc.internal.api.JavadocTaskImpl.call(JavadocTaskImpl.java:104)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java.parser$parse_java.invokeStatic(parser.clj:87)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java.parser$parse_java.invoke(parser.clj:64)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java.parser$source_info.invokeStatic(parser.clj:299)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java.parser$source_info.invoke(parser.clj:290)
        at clojure.lang.Var.invoke(Var.java:384)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java$class_info_STAR_.invokeStatic(java.clj:196)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java$class_info_STAR_.invoke(java.clj:187)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java$class_info.invokeStatic(java.clj:234)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java$class_info.invoke(java.clj:226)
        at cider.nrepl.inlined_deps.orchard.v0v5v5.orchard.java$eval3592$fn__3593.invoke(java.clj:376)
        at clojure.core$binding_conveyor_fn$fn__5754.invoke(core.clj:2030)
        at clojure.lang.AFn.call(AFn.java:18)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
        at java.base/java.lang.Thread.run(Thread.java:832)

Not available. 😎

It's actually used by Calva for adding debugger decorations to instrumented functions and their usages. This part uses clj-kondo as a library. So, I guess it could be used in a more explicit feature for finding usages.

What's your OS, lein version, and java version? I haven't seem this before, that I remember. It seems to be something related to Java though, system-specific.

Especially if you say you got that with a lein new project template

% uname -v      
Darwin Kernel Version 19.6.0: Mon Aug 31 22:12:52 PDT 2020; root:xnu-6153.141.2~1/RELEASE_X86_64
% lein --version
OpenJDK 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.
Leiningen 2.9.4 on Java 15 OpenJDK 64-Bit Server VM
% java -version 
openjdk version "15" 2020-09-15
OpenJDK Runtime Environment AdoptOpenJDK (build 15+36)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 15+36, mixed mode, sharing)

Thanks. I don't think I've used an open jdk version that high before. I wonder if that has something to do with it, and maybe in relation to the orchard library which seems to be throwing an error in some parse function (part of cider-nrepl which jack-in injects as a dependency)

@pez, any idea about this?

Oh, seems this is a known issue: https://github.com/clojure-emacs/orchard/issues/100

For now, if you want to stop seeing those errors, you could downgrade your JDK version. I think 11 should work fine. I'm not sure about the others.

Thank you 👍 - really appreciate your help.

No prob!

Good find, @brandon.ringe. Hope you'll find Calva useful and nice, @paulbutcher, welcome!

I think clojure-lsp has a lot of nice stuff that Calva users would like.

Just try this old VSIX and you'll feel the power 😃 https://8510-125431277-gh.circle-artifacts.com/0/tmp/artifacts/calva-2.0.80-feat-lsp-client-27da0c33.vsix

Or try this one which has 995 additional commits merged 😃 https://8515-125431277-gh.circle-artifacts.com/0/tmp/artifacts/calva-2.0.131-feat-lsp-client-0efee118.vsix

And here is one with the latest clojure-lsp, which includes clj-kondo https://8520-125431277-gh.circle-artifacts.com/0/tmp/artifacts/calva-2.0.131-feat-lsp-client-679f33ff.vsix