5. Annotations
Chapter Contents
Annotations, a form of metadata, provide data about a program that is not part of the program itself. Annotations have no direct effect on the operation of the code they annotate. Annotations have a number of uses, such as the following:
Information for the compiler. Annotations can be used by the compiler to detect errors or suppress warnings.
Compile-time and deployment-time processing. Software tools can process annotation information ...
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