We Make Software Work For You and Help You Achive Your Ambitious Goals

Where we are

Level 1 / 71 Balmain Street
Cremorne VIC 3121
(green street entrance)

Contact Us

+ 61 3 9428 9227


Our existing customers should use our Support Portal

10 May

Programming language trends: Java 9

Java has been around since the nineties, but it''s still alive and well. It''s disappeared from the browser but is widely used for web applications and Android applications. Java 9 is due to come out in March 2017, with some pervasive changes designed to help both very big and very small applications.

Java has always had a coordination problem when different chunks of code come together. JAR (Java Archive) files hold runnable code, and a JAR is often the result of putting multiple smaller JARs together. Some of these are common, open source code. Both JAR A and JAR B might incorporate the same utility package — let''s call it X. The Java runtime can load only one copy of X. If they''re both the same, there''s no problem. If they''re different versions, though, it''s more or less a matter of luck which one gets loaded. If JAR A and JAR B each depend on the different versions of X that they''re using, one of them might stop working when the runtime loads the other version. Developers call this situation "JAR hell."

To fix this problem, Java 9 introduces modules. A module is "a named, self-describing collection of code and data." A module can specify what code it requires and what it makes available to other modules. A JAR file with the needed descriptive information defines a module.

The module path instructs the Java runtime where to find module dependencies. The same package can independently exist within two different modules, but if a required module is missing or there''s a conflict that modularization doesn''t resolve, the loader will quit.

The result of modularization should be more stable code. Java 9 will have lots of other features, of course, but this one is drawing more discussion than any other.

To learn about the digital strategies we offer, please contact us.

Thinking of hiring us?

Start Here