When physical memory is scarce, paging causes garbage collection to run an order of magnitude slower than explicit memory management.

Diagnose the problem 1. Capture the heap dump A heap dump is a snapshot of what’s in your Java program’s memory at a given point in time. It contains details about objects that are present in memory, ...

With the recent announcement of JEP 188: Java Memory Model Update, now seems like a good time to brush up on what you know about the JMM.