To Java or Not to Java: What Statistics Shows?

| July 28, 2017

There are tons of debates about Java, its development and ability to meet the requirements of a modern developer. Many authors determine in their posts and articles how soon Java will be vanished as a programming language, the others contradict, especially now in the lead-up to a new Java version launch. It seems the best way to see a real state of things and where it goes is to track statistics.
In Jelastic, Java is the most widely used programming language, the number of users and Java projects keep growing constantly. But let’s see what versions of JDK are chosen by the majority, what application servers and databases are installed and what are the top Java applications running in the cloud.

Java Versions

Many customers chose Java because of its portability so it could be on everything from high-end servers to smartphones. And with each new version, Java adds extra possibilities and important fixes. On the chart below you can see what are the most popular JDK versions among Jelastic cloud platform customers: the most part of created environments were made on Java 8 (54.6%), the next goes Java 7 (40.8%), and the less used is Java 6 (4.6%). Seems reasonable to prefer the latest updates and features.Java VersionsThe explosion of Android development and the release of Java 8 helped the language to strengthen its positions and keep the market dominance. And soon the other reason of the resurgence of Java is coming, as the whole world is in anticipation of the JDK 9.
The 9th version in its Development Kit will get lots of new capabilities, including modularization, a read-eval-print loop, ahead-of-time compilation, and a memory-saving improvement for strings storage.
The 9th release had been delayed to September 2017 on a cause of the complexity of the modularization effort. Modular Java itself already had been deferred from Java 8, which was released three years ago. Modularity is intended to make Java more scalable, including improving its deployments on small devices. A modular application packaging capability, for instance, is intended to reduce the size of the bundled runtime image and features module awareness and custom runtime creation. Ahead-of-time compilation compiles classes to native code before launching the virtual machine, thereby improving application startup times.
Jelastic is already preparing the platform to add JDK 9 as soon as it is released. So soon we expect new statistics with increased indicators on Java 9 on Jelastic Cloud.

Application Servers

The true unbreakable leader and mostly preferable application server for Java is Tomcat, and it gets a firm stable 1st place with 86.9% active environments. The next place is set by GlassFish (4.6%), and WildFly (3.3%) holds the third, and the next goes Jetty (2%), and the rest of servers have nearly the same percentage of environments: TomEE, Spring Boot, Smartfox, JBoss.Application Servers Stats 2017Let’s have a deeper look on every server’s statistics, and find out the most popular versions that our clients have chosen.
Among the Tomcat’s versions users prefer Tomcat 7 (61.9%), the 8th version has almost twice environments less (29.9%), Tomcat 6 got the third place (5.9%), and the less used is Tomcat 9 (2.3%)tomcat versions statisticsBetween the 3rd (27.8%) and the 4th (72.2%) version of the GlassFish clients definitely show their approval to the latest. Currently, we are working on the clustered GlassFish 5 for one click installation, until it’s ready feel free to test already preconfigured available versions of GlassFish.
Glassfish versions statistics
Talking about the WildFly, the oldest 8th version (64.9%) takes double lead among the newest two: the 9th (26.3%) and the 10th (8.8%).WildFly Java Statistics


Here we want to make a review on the usage of databases in the clients' environments. In a chart below, you can see that MySQL is surely favored among its competitors. MySQL (48.3%) got the biggest quantity of installations. And the number is growing, especially considering an easy way to install it with already configured replication :

The next goes PostgreSQL (30.8%), and MariaDB is holding the 3rd place (12.7%). Then goes MongoDB (6.5%). The rest of databases got nearly 1% of all environments each:  Redis, OrientDB, CouchDB, MSSQL, Neo4j, PerconaDB, Cassandra.Database servers usage in java environments


Also, we’ve gathered overall statistic information on the one-click installable Java applications available and mostly used within Jelastic platform. And as we can see on the percentage chart below, DripStat and Cyclos4 Pro appear to be both on the same level and are the most widespread applications among Jelastic customers. The following projects have less part but still leading the list: Gitblit, Alfresco, Nexus Repository Manager, Jenkins, Magnolia CMS and click installations Java


Analyzing our cloud report we can surely say that Java keeps and even increases its popularity. Clients mostly use the latest version of Java, and the release of the 9th version promises even more Java-users flow. The top-used servers and databases are stable and remain their positions.
We truly hope this report will help you with the choice of services and getting a clear view on the state of Java popularity. Get more info about Jelastic as a Java platform, try out to install your own servers or just register for online Java course on container usage at our Java hosting landing.