One of the long-favored features of the Java platform is the behind the scenes garbage collection. JEP 278's focus was to create additional WhiteBox tests for humongous objects as a feature of the G1 garbage collector.
WhiteBox testing is an API used to query JVM internals. The WhiteBox testing API was introduced in Java 7 and upgraded in Java 8 and Java 9.
The G1 garbage collector works extremely well, but there was room for some improved efficiency. The way the G1 garbage collector worked is based on first dividing the heap into regions of equal size, illustrated as follows:
The problem ...
