static void disableShutdownHook0() {
        shutdownHookDisabled = true;
    }
A {@link ClientFactory} which combines all discovered {@link ClientFactory} implementations.

<h2>How are the {@link ClientFactory}s discovered?</h2>

<p>{@link DefaultClientFactory} looks up the {@link ClientFactoryProvider}s available in the current JVM
using Java SPI (Service Provider Interface). The {@link ClientFactoryProvider} implementations will create
the {@link ClientFactory} implementations.
core/src/main/java/com/linecorp/armeria/client/DefaultClientFactory.java