According to some surveys, such as JetBrains's great survey, Java 8 is currently the most used version of Java, despite being a 2014 release.
What you are reading is one in a series of articles titled 'Going beyond Java 8,' inspired by the contents of my book, Java for Aliens. These articles will guide you step-by-step through the most important features introduced to the language, starting from version 9. The aim is to make you aware of how important it is to move forward from Java 8, explaining the enormous advantages that the latest versions of the language offer.
Introduction
According to some surveys, like JetBrains's great survey, Java 8 is currently the most used Java version, despite being a 2014 release.
This article is the first in a series of articles titled, "Going Beyond Java 8," inspired by the contents of my book "Java for Aliens." These articles will guide the reader step-by-step to explore the most important features introduced starting with Java 9. The aim is to make the reader aware of how important it is to move forward from Java 8, explaining the enormous advantages that the latest versions of the language offer.
JetBrains is a world-class vendor of developer tools that are loved by millions of geeks. IntelliJ IDEA, ReSharper, PhpStorm, PyCharm, and WebStorm are all JetBrains products that have become household names in their respective developer communities.
As development teams grow and get more diverse, companies start to purchase more subscriptions to JetBrains tools. However, buying subscriptions is just the first step. Engineering teams need to distribute licenses among existing developers, provide licenses to new developers as they come on board, and revoke licenses from developers as they leave or switch to a different technology stack.
The new version of Java is here! But you cannot migrate at this moment, that is not a problem, because you can do it partially.
If this is you problem, then you are in right place. :)
JDK 14 does not disappoint. In the latest JDK update, we see the usual API changes and low-level JVM enhancements, as well as exciting new language preview features and simplified debugging with NPE.
Throughout much of its long history, Java Runtime Environments for MS-Windows have traditionally been packaged up in the venerable EXE format for installation. This made for a well understood, straightforward and standard way of installing Java for individual users, unfortunately at the expense of those tasked with managing Windows systems en masse. EXE files don't necessarily play well in the Windows systems administration world where tools like Microsoft SCCM and many other capable alternatives are used. A more preferable payload is the MSI format. The equivalents in the Linux and macOS world would be the RPM/DEB and DMG formats respectively.
To help rectify this shortcoming, some organizations have seen fit to produce their own MSI versions. Oracle, for example, provides an Enterprise MSI Installer for its Java SE Subscription customers with its Oracle JDK 7 and JDK 8 releases. Among the litany of Open JDK distributions, a few have also decided to package up their own MSI versions too.
Hi, Spring fans! Welcome to another installment of Spring Tips! In this installment, we're going to look at the new features in Java 14 and their use in building Spring Boot-based applications.
To get started, we need to use the latest and greatest version of Java, Java 14, which isn’t — just yet — released yet. It is due to be shipped in early 2020. You can download early access releases on Java.net. You might also consider using SDKManager (sdk), which makes installing new JVM editions a trivial matter indeed.
Java 14 was released recently on March 17. It has features that are more useful for mobile app development than older versions, like Java 13 and Java 12. Java is one of the most popular languages with 18.84% share after Python.
Ease of multi-threading, API integration, and in-built security features make Java one of the most sought after programming language for app developers. Most important is its ease of integration of compatibility features that are updated regularly by operating systems. Android 11 releasing this year will have several new compatibility features, which can be easily integrated with Java.
I had the opportunity to talk to Aurelio Garcia-Ribeyro, Senior Director of Product Management at Oracle.
Two years ago I wrote an article about the concerns with Java. These included: quality, release cadence and fatigue, taking security seriously, Oracle's role as a steward of Java, and progress relative to other languages. I began the conversation by asking Aurelio about these issues.
Records is a new preview feature in Java 14, providing a nice compact syntax to declare classes that are supposed to be dumb data holders. In this article, we’re going to see what Records looks like under the hood. So buckle up!
Class Representation
Let’s start with a very simple example:
JDK 14 Early Access Build #23 is now available.
JDK 14 Early Access Build #23 ( 2019/11/13) is now available. One of the more noteworthy changes with this build is the removal of the Concurrent Mark Sweep garbage collector. JEP 291 ["Deprecate the Concurrent Mark Sweep (CMS) Garbage Collector"] deprecated the Concurrent Mark Sweep (CMS) garbage collector back in 2017 with JDK 9 and JEP 363 ["Remove the Concurrent Mark Sweep (CMS) Garbage Collector"] has been targeted for JDK 14 to remove the CMS garbage collector altogether.
The next screen snapshot demonstrates that the CMS garbage collector was still available with JDK 14 Early Access Build #22.
Check out the newest proposals for JDK 14!
A recent Mark Reinhold message announces six new "JEPs proposed to target JDK 14": JEP 345, JEP 361, JEP 363, JEP 364, JEP 365, and JEP 367. Assuming no objections are made by November 7, these JEPs will be targeted to JDK 14 along with previously targeted JEPs JEP 349 ("JFR Event Streaming"), JEP 352 ("Non-Volatile Mapped Byte Buffers"), and JEP 358 (" Helpful NullPointerExceptions"). This post summarizes each of these six JEPs proposed for targeting JDK 14.
JEP 345: NUMA-Aware Memory Allocation for G1
The succinct "Summary" of JEP 345 states, "Improve G1 performance on large machines by implementing NUMA-aware memory allocation." Two important "non-goals" of this JEP indicate that the JEP is only intended to add NUMA (non-uniform memory access) support to the G1 garbage collector and only for Linux. However, the JEP also points out that "the parallel collector, enabled by -XX:+UseParallelGC, has been NUMA-aware for many years."
JDK 13 is currently in Rampdown Phase 1 (RDP 1), is scheduled to enter Rampdown Phase 2 (RDP 2) in a little over one week (on July 18, 2019), and is tentatively scheduled for General Availability on September 17, 2019. What this means, of course, is that it's time to start thinking about JDK 14! This post references and summarizes some of the online resources related to JDK 14 that are starting to appear.
Project JDK 14
The main OpenJDK JDK 14 page is the best place to start when wishing to see an overview of the release and its progress. Besides a reference to its associated specification (JSR 389: "Java SE 14 Platform"), the only other information available on this page as of this writing is a simple "Status" paragraph that references development repositories and the JDK Enhancement Proposal (JEP) process.
