As we know, Java 9 introduces many interesting changes to the Java ecosystem, like the new module system and internal API encapsulation. Eclipse Collections must change in order to be compatible.

Learn how to fine-tune and parallelize the behavior of Java iterators, using Java 8's forEach() method and Streams API. Then see some performance benchmarks that might surprise you ...

In this article, key Eclipse Collections contributors demonstrate techniques for refactoring standard Java code to Eclipse Collections, and demonstrate some of the memory savings you can achieve.