The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.
See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.
See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.
This lesson focuses on the new properties introduced in JAXP 1.5.
JAXP 1.5 was added to the 7u40 and JDK 8 releases. You can download the current JDK 8 snapshot from java.net.