8000 Publish new release? Exception in thread "main" java.lang.NoClassDefFoundError: clojure/tools/logging/impl/LoggerFactory · Issue #37 · tatut/clj-chrome-devtools · GitHub
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Publish new release? Exception in thread "main" java.lang.NoClassDefFoundError: clojure/tools/logging/impl/LoggerFactory #37

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danielcompton opened this issue Mar 19, 2025 · 0 comments
Open

Publish new release? Exception in thread "main" java.lang.NoClassDefFoundError: clojure/tools/logging/impl/LoggerFactory #37

danielcompton opened this issue Mar 19, 2025 · 0 comments

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@danielcompton
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danielcompton commented Mar 19, 2025 •
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When we add [clj-chrome-devtools "20220405"] to our app , we get an exception when we try to log in our AOT compiled app:

Exception in thread "main" java.lang.NoClassDefFoundError: clojure/tools/logging/impl/LoggerFactory

When I use clj-chrome-devtools as a git dependency, or build the JARs myself, I can't reproduce the issue. The one thing I saw that looked odd was that in the deployed JAR there is a user.clj file which doesn't appear to be present in the source.

(ns user
  (:require [clj-chrome-devtools.commands.page :as page]
            [clj-chrome-devtools.core :as chrome]
            [clj-chrome-devtools.automation :as auto]
            [clj-chrome-devtools.automation.launcher :as launcher]
            [clojure.java.io :as io])

  (:import (java.util Base64)))


(comment
  (defn b64-decode
    "https://stackoverflow.com/a/39188819/53790"
    [to-decode]
    (.decode (Base64/getDecoder) to-decode))

  (def a (launcher/launch-automation {}))
  ;(def c (chrome/connect "localhost" 9222))
  ;(def a (auto/create-automation c))
  (auto/to a "https://babashka.org")
  (auto/print-pdf a "bb.pdf")
  (def resp (page/print-to-pdf c {}))
  (def pdf-data (b64-decode (:data resp)))

  (with-open [out (io/output-stream "test.pdf")]
    (.write out pdf-data))

  (def scr (page/capture-screenshot c {:format "png"}))

  (with-open [out (io/output-stream "scr.png")]
    (.write out (b64-decode (:data scr)))))

When I add that user.clj file to the repository and lein install, I can reproduce the crash. I'm not 100% sure what is going on here, but I think there is likely some issue with the user.clj file and our AOT compiled app.

My best guess is that user.clj is loaded first at boot, which loads clj-chrome-devtools.automation.launcher :as launcher which then loads clojure.tools.logging, and somehow there is a class conflict from the AOT compiled defrecord vs the runtime compiled defrecord.

Would you consider doing a new release to Clojars? I prefer to use Maven dependencies over Git dependencies when they're available. Thanks!
@danielcompton danielcompton changed the title Publish new release? Publish new release? Exception in thread "main" java.lang.NoClassDefFoundError: clojure/tools/logging/impl/LoggerFactory Mar 19, 2025
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