The Java compiler must create synthetic methods on nested classes when their attributes specified with the private modifier are accessed by the enclosing class.

In this article Rafael Winterhalter, creator of the bytecode manipulation tool Byte Buddy, provides detailed guidance on how to easily create Java agents using Byte Buddy.

Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.

There is a reason why Java method modifiers exist. If you call public methods internally and don't understand why, your developers could face major class issues.