Fixed API Note in javadoc for javax.net.ssl.SSLSocket class. API Note was introduced by JDK-8208526 [1]. At that point both Socket.shutdownInput() / Socket.shutdownOutput() and InputStream.close() / OutputStream.close() performed half-close of TLS-1.3 connection. However this behaviour has changed as result of JDK-8216326 [2]. InputStream.close() / OutputStream.close() no longer perform half-close but full socket close, but API Note was never updated.

[1] https://bugs.openjdk.java.net/browse/JDK-8208526
[2] https://bugs.openjdk.java.net/browse/JDK-8216326

Also added some quick text to clarify that SSLSockets can be closed using either shutdownInput()/shutdownOutput() or close().