OpenJ9 from the Eclipse Foundation (contributed by IBM) is a JVM optimized to run Java applications cost-effectively in the cloud.
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Oracle Java SE
Score 8.7 out of 10
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Oracle Java SE is a programming language and gives customers enterprise features that minimize the costs of deployment and maintenance of their Java-based IT environment.
The CLOUD development integrating web applications with web databases definitely needs a fast and memory-efficient platform like Eclipse OpenJ9. The garbage collector and SHARED CLASSES between processes make possible a fast response to the web client and API requests. Eclipse OpenJ9 needs better documentation to explain to the programmers the advantages over other JAVA implementations like HotSpot.
Oracle Java SE is well suited to long-running applications (e.g. servers). Java Swing (UI toolkit) is now rather outdated, lacking support for modern UI features. JavaFX, the potential replacement for Swing, has now been separated out of Java core. Ideally, there would be a path to migrate a large application incrementally from Swing to JavaFX, but due to different threading models and other aspects, it is difficult. At this point, it is probably better to use an embedded web browser (e.g. JxBrowser) to provide a modern UI in HTML/Javascript and keep just the business logic in Java.
Since Java runs on a virtual machine, it's generally considered to be agnostic of the hardware it's running on. It allows for deployment across a mix of hardware setups with the same binary.
Lots of literature, third party libraries, support forums, and books have been devoted to Java in general, making it a great language to use to support the business.
Backwards compatibility has been an important strength of Java for us. Legacy code that isn't ready to be retired yet can still run on our newer setups despite using older versions of OJSE.
The language is fluent and has good support from a number of open source and commercial IDEs. Language features are added every 6 months, although long-term service releases are only available every 3 years. It would be nice if some of the older APIs were depreciated with more pressure to move to the new replacement APIs (e.g. File vs. Path), but transitions to new features are generally well implemented.
Java is such a mature product at this point that there is little support from the vendor that is needed. Various sources on the internet, and especially StackOverflow, provide a wealth of knowledge and advice. Areas that may benefit from support is when dealing with complex multithreading issues and security libraries.
IBM released the Eclipse OpenJ9 under the Eclipse Foundation and open source thinking about the need for CLOUD development efficiency. Eclipse OpenJ9 could be more suitable if want to develop an API with cloud databases like MariaDB using AWS. The memory management of Eclipse OpenJ9 makes the web performance of API faster. The capacity to run shared CLASSES in a memory partition between processes gives Eclipse OpenJ9 a design advantage over other JAVA SDK platforms.
We choose Java as our system has multiple sub-applications that have different purposes and architecture including back-end applications, front-end UI, front-end Rest API, and Selenium Automation tests. They are deployed in Windows and Linux, communicate with each other using Rest API, RMI and Queue Message and need to support different deployment environment from Dev, Test, UAT to Production so using Java allows us to have a common standard from development, build and deployment for all applications.
