AbstractCOSCachedCredentialsProvider类是不是应该实现AutoCloseable而非Closeable

[wuzhidexiaolang]

@OverRide
public void close() throws IOException {
if (executors != null) {
executors.shutdownNow();
executors = null;
}
}
关闭的是线程资源，Closeable针对的是IO资源，只能抛出 IOException，AutoCloseable是通用的资源，可以抛出Exception