Prefer Collections.newSetFromMap(new ConcurrentHashMap<>())

MSAL

Prefer the Java standard library over third-party usage of Guava in simple cases like this.

org.openrewrite.java.migrate.guava.NoGuavaRefasterRecipes$SetsNewConcurrentHashSetRecipe
mod run . --recipe='org.openrewrite.java.migrate.guava.NoGuavaRefasterRecipes$SetsNewConcurrentHashSetRecipe'

Install it once from Recipe actions, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.