in cxx/fbjni/JThread.h [44:47]
static local_ref<JThread> create(std::function<void()>&& runnable, std::string&& name) {
auto jrunnable = JNativeRunnable::newObjectCxxArgs(std::move(runnable));
return newInstance(static_ref_cast<JRunnable>(jrunnable), make_jstring(std::move(name)));
}