Why close method of java.lang.AutoCloseable throws Exception, but close method of java.io.Closeable throws IOException?

Question

I was reading this link for try-with-resources and it says:

The close method of the Closeable interface throws exceptions of type IOException while the close method of the AutoCloseable interface throws exceptions of type Exception.

But why? The close method of AutoCloseable could have also thrown IOException is there any example that support that close method of AutoCloseable must throw exceptions of type Exception

Answer 1

Closeable extends AutoCloseable, but there could be other particular interfaces that extend this interface. E.g.:

public interface MyCloseable extends AutoCloseable { 
    void close() throws RuntimeException; 
}

They wanted to have an interface that can be used in many cases, and this is why they decided to use Exception because it also works for other types of exceptions.