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Oracle Announces First Java 9 Features

Oracle Announces First Java 9 Features# MobileDevelopment - 移动开发

g*i2014-08-18 07:08

1 楼

Just asking because it seems much harder to find any commercial software
available for download any more.I remember I used to be able to find Adobe
Premiere or After Effects much more easily, but that was a long time ago so
I'm not sure if I just looked at the wrong places.
Unless I'm being too cheap and everyone now buys their own copy...

z*n2014-08-18 07:08

2 楼

Oracle Announces First Java 9 Features
by Ben Evans on Aug 18, 2014 | Discuss
Oracle has announced the first set of enhancement proposals (known as JEPs)
that will deliver features for Java 9.
Java Enhancement Proposals are a new process that allow features for the
Java language and virtual machine to be developed and explored without
requiring a full specification process (JSR). This means that the scope of
JEPs can be smaller and more targeted, and can also tackle issues that are
specific to the OpenJDK implementation. Successful JEPs can then be
converted to standardization requests (or bundled into existing Java
standards as part of a point release of the standard).
The initial set of Java 9 features is small and rather conservative, but
with almost 2 years to go before Java 9 ships the expectation is that many
additional features will be added before a GA release.
Three new APIs have been announced: Process API Updates for interacting with
non-Java operating system processes, New HTTP Client that includes HTTP/2
support and a new lightweight JSON API. The latter is expected to build upon
the JSON support already standardized as part of JSR 353.
There are also three JVM / performance related features announced: Improve
contended locking for better performance when threads are competing for
access to objects, segmentation of the JIT compiler's code cache (for better
JIT performance on large applications) and further development of the "
smart" Java compiler, sjavac, which promises parallel and shared compilation
amongst other features http://openjdk.java.net/jeps/199.
Finally, one tantalizing feature has been promised in the form of JEP 201 -
Modular Source Code. This is not, as yet, the modularity solution known as
Project Jigsaw (initially targeted as part of Java 8). Instead, this is a
housecleaning exercise for OpenJDK, to lay the groundwork for modularity by
creating and enforcing module boundaries whilst the JDK itself is being
built. This is a first step towards full modularity even if the modules
system is not visible to the developer or the runtime.
Other projects that are exploring the evolution of Java include Project
Valhalla, and the Java Native Runtime (JNR) project, started by Charles
Nutter (JRuby) as an overhaul of Java's original native interface (JNI). At
this time, it is not known whether either project will release technology
that will form part of Java 9, but both projects are targeting areas of keen
interest to Java developers.