public static ThreadFactoryBuilder builder(String threadNamePrefix) {
        return new ThreadFactoryBuilder(requireNonNull(threadNamePrefix, "threadNamePrefix"));
    }
Returns a new builder which builds a new {@link ThreadFactory}.

@param threadNamePrefix the prefix of the names of the threads created by the factory
                        built by this factory builder.
core/src/main/java/com/linecorp/armeria/common/util/ThreadFactories.java