Does Google Guava Cache load on same thread?

Does Google Guava Cache load the cache on the same thread by default?

Code:

cache = CacheBuilder
    .newBuilder()
    .refreshAfterWrite(2, TimeUnit.SECONDS)
    .build(new CacheLoader<String,String>() {
        @Override
        public String load(String s) throws Exception {
            return addCache(s);
        }
});

Will the call to addCache be made on a different thread? As far as I know, it is a synchronous call but I am not sure.

Here's a simple test allowing to know:

    System.out.println("Thread.currentThread() = " + Thread.currentThread());
    LoadingCache<String, String> cache = CacheBuilder
        .newBuilder()
        .refreshAfterWrite(2, TimeUnit.SECONDS)
        .build(new CacheLoader<String, String>() {
            @Override
            public String load(String s) throws Exception {
                System.out.println("Thread.currentThread() = " + Thread.currentThread());
                return "world";
            }
        });
    cache.get("hello");

Output:

Thread.currentThread() = Thread[main,5,main]
Thread.currentThread() = Thread[main,5,main]

Of course, as the documentation indicates, if another thread has already started loading the value for the key, the current thread won't reload it: it will wait for the value to be loaded by the other one:

If another call to get(K) or getUnchecked(K) is currently loading the value for key, simply waits for that thread to finish and returns its loaded value.