Mastering the Java Virtual Machine

11

Java Annotation Processor

In the dynamic landscape of Java programming, the ability to introspect and analyze code at runtime has long been facilitated by reflection. While reflection offers a powerful mechanism for inspecting and manipulating classes, fields, and methods, it comes with its trade-offs, such as performance overhead and the potential for runtime errors. Recognizing these challenges, a compelling alternative arises—shifting the focus from runtime to build time using Java Annotation Processors.

This chapter delves into the world of Java Annotation Processors, offering insights into their role as a robust tool for harnessing metadata during the compilation phase. By doing so, developers can sidestep the pitfalls associated with ...