int threads = Math.max(numberOfThreads, 4);
ThreadFactory threadFactory =
new ThreadFactoryBuilder().setNameFormat(name + " I/O worker #%d").build();
ThreadRenamingRunnable.setThreadNameDeterminer(new ThreadNameDeterminer() {
@Override
public String determineThreadName(String currentThreadName, String proposedThreadName) throws Exception {
return null;
}
});