Fix reflection warnings when using clojure.core.async.go-checking

Author: puredanger

README.md

@@ -65,6 +65,8 @@ Copyright © Rich Hickey and contributors
 
 ## Changelog
 
+* next
+  * Fix reflection warnings when using `clojure.core.async.go-checking`
 * Release 1.8.730 on 2025.04.02, effective changes since last non-beta release:
   * [ASYNC-256](https://clojure.atlassian.net/browse/ASYNC-256) (CLJ) Add `io-thread` and System property `clojure.core.async.executor-factory`
   * [ASYNC-260](https://clojure.atlassian.net/browse/ASYNC-260) (CLJ) Remove now unused property `clojure.core.async.pool-size`

src/main/clojure/clojure/core/async/impl/dispatch.clj

@@ -43,10 +43,10 @@
   [& body]
   (if (Boolean/getBoolean "clojure.core.async.go-checking")
     `(try
-       (.set in-go-dispatch true)
+       (.set ^ThreadLocal in-go-dispatch true)
        ~@body
        (finally
-         (.set in-go-dispatch false)))
+         (.set ^ThreadLocal in-go-dispatch false)))
     `(do ~@body)))
 
 (defn in-dispatch-thread?