Ensure a private artifact repository is reachable to prevent Gradle from hanging during resolution.

build.gradle

project.gradle.addListener([
        beforeResolve: {ResolvableDependencies resolvableDependencies ->
            resolvableDependencies.dependencies.forEach {dependency ->
                if (dependency.group == 'io.uacf.android' && !ext.has('checkedUacfRepositoryIsReachable')) {
                    URL url = new URL('https://artifactory.uacf.io/mobile-libraries')
                    HttpURLConnection conn = url.openConnection()
                    conn.setConnectTimeout(5 * 1000)
                    conn.setRequestMethod("HEAD")
                    try {
                        conn.connect()
                        conn.getResponseCode()
                        ext.set('checkedUacfRepositoryIsReachable', true)
                        println "Connection to UACF artifact repository has been checked."
                    } catch (IOException e) {
                        throw new GradleException("Unable to connect to the UACF artifact repository. Ensure you have a UACF VPN established or enable offline mode in settings.", e)
                    } finally {
                        conn.disconnect()
                    }
                }
            } },
        afterResolve: {resolvableDependencies -> }
        ] as DependencyResolutionListener)