What Are The Key Features Of Java 9?

The brand new version of Java as Java 9 has got many features which makes it different from previous versions. This is supposed to be one of the best versions as far as many applications are concerned. Java 9 has already started to cover up its market. Because of this many offshore developers have started working on it. And companies have started to outsource the systems based on Java 9.

Here, I have explained some of the features of Java 9.

• Project Jigsaw:

The main application of this project is to make Java further modular. It will also break the components of JRE in such a way that they will become interoperable. The first step towards jigsaw is JEP which is used to organize the source code of JDK into small modules, improve build system for module compilation and to encourage module boundaries at build time.

• Process API updates:

Using Java 9, unlike other versions one don't need to access native code for controlling and managing the operating system process. It also required different implementations for each platform to guarantee that it's getting the results right. The newer version of Java can interact with the operating system to process more data.

• Lightweight JSON API:

JSON handling is not that frequent in Java. No other Java versions support JSON API but this one. The best things about this API is that it can become the part of programming language, it is quite lightweight and can use the newer capabilities of Java 8. The delivery will be done through java.util.

• Money and Currency API:

Money and Currency API is inspired from the previous Java 8 API named as date and time API. The newer API can perform more tasks like transportation, representation and can perform comprehensive calculations. The calculations are faster than the previous ones.

• Improve contended locking:

Lock contention is one of the most popular actions done to perform multithreading in Java applications. The volcano test is used to check if the performance of the Java object monitors have increased or not. This improvement causes the simulation in the chat server with more number of thread counts and client connections. Many of them are simulating a heavy duty real-world application by accessing the resources.

• Segment code cache:

The second best improvement in Java 9 is made in JIT compiler angle. The job of VM compiler is to compile the rapidly executed code to native code and store them in the code cache. This update will divide the code into different segments and then compile each segment separately. This action will improve the performance of the compiler.

• Smart Java compilation:

The smart Java compilation tool helps to increase JDK build speed. This is done by the running compiler on all cores. The new JEP 199 will not only be able to build projects faster on JDK but also to make projects not related to JDK.

• HTTP 2 client:

HTTP Url Connection will be replaced after the application of HTTP 2.

References

• https://dzone.com/articles/java-9-ultimate-feature-list
• https://www.techworld.com/news/developers/java-9-release-date-new-features-3660988/
• https://www.journaldev.com/13121/java-9-features-with-examples