Support AutoCloseable with SerializationFeature.CLOSE_CLOSEABLE

[Logic-32]

The documentation for SerializationFeature.CLOSE_CLOSEABLE clearly indicates that it only closes Closeables as of 2.9.9.1. Can it be updated to close AutoCloseables as well?

Ref:

jackson-databind/src/main/java/com/fasterxml/jackson/databind/ObjectMapper.java

Line 1074 in 02a7ef5

if (config.isEnabled(SerializationFeature.CLOSE_CLOSEABLE) && (value instanceof Closeable)) {

[cowtowncoder]

Sounds reasonable since starting with 2.8 Java 7 features (and AutoCloseable was added in Java 7) may be used in jackson-databind.

But just to play it safe, I think this should go in 2.10 (2.10.0.pr1 is due out soon anyway).

[cowtowncoder]

Hmmh. Actually, due to added throwing of regular Exception, need to spend bit more time on figuring out intricasies here, so won't be quite as easy as I thought.

[cowtowncoder]

Implemented for 3.0.0