JEP 450 (Compact Object Headers) has been targeted for delivery in JDK 24. This currently experimental feature optimizes heap utilization by shrinking the size of the mandatory object header in ...

Although Java lacks a true sizeof () equivalent, the Instrumentation interface introduced with J2SE5 can be used to get an estimate of the size of a particular object via its getObjectSize (Object ...

OpenJDK proposal to reduce the Java object header by half or more would lower memory and CPU usage on all Java workloads.

Hey -- TL/DR -- In Java, I'm struggling to understand how to create an object instance of a generic type without first knowing the type. So, before I delve down into this, know that I'm trying to ...