Java version and vendor data analyzed: 2016 edition
This is now fourth year when we publish statistics about the Java landscape. Every year, during springtime, we dig into the data that we have gathered from the JVMs Plumbr Agents have monitored, and find out about:
- which Java versions are used (Java 6 vs Java 7 vs Java 8);
- which JVMs are used (Oracle Hotspot vs OpenJDK vs Rest Of The World);
- how the landscape has changed over time.
This year our conclusions are based on 1,240 different JVMs that Plumbr monitored for performance during February and March 2016. The data has been gathered from within the JVM via System.getProperty() calls with os.arch, os.version, java.version etc..
Java versions used in 2016
Java major version got close to confirming the Java 8 being the most popular environment. But 2016 is still the year of Java 7 in the lead with Java 8 trailing behind with just 0.17% less deployments:
in 2016 we saw no ancient Java 5 versions nor was there any early Java 9 builds.
Java versions in use during 2013 – 2016
The picture looks more interesting if we look at the trends over the four years. Presenting the same data over the period from 2013 to 2016 where we have analyzed the same data, we see the following:
The trends visible above expose the pace older Java versions are making room for new. Java 5 remains dead and Java 6 deployment base shrinks 2x each year. It is also clear that Java 7 deployment base has peaked and is now in decline, giving room for Java 8 to take over.
JVM vendors in 2016
Next analysis opens up the different JVM vendors in regards of deployment market share. If you wonder about the concept then – Java declares a standard any vendor can decide to implement when building a Java Virtual Machine. In theory we should thus have a multitude of different JVM vendors, but in practice we have the following:
No matter how you would interpret the data, the conclusion is the same: there are just two JVMs out there, Hotspot and OpenJDK. The promise of Java spec with multiple vendors does not really hold and we have the choice of between the Hotspot and OpenJDK.
The “Other” category consisted of five different JVMs vendors, each represented by less than five JVMs in the dataset. These vendors included Oracle JRockit, IBM J9, SAP Java Server VM, Zing and DCEVM.