Android: Exception using Closeable interface with Socket

Question

When I try to close a socket through its Closeable interface, I get an exception:

new java.net.Socket().close();
// no error

((java.io.Closeable) new java.net.Socket()).close();
// Throws: java.lang.IncompatibleClassChangeError: interface not implemented

Why is that? The problem is only on Android devices, not on Java programs running on desktop.

Answer 1

To quote Android issue tracker:

Socket implements Closeable only since API level 19 (kitkat) but that information isn't in the generated documentation.