A callback operation in Java is one function that is passed to another function and executed after some action is completed. A callback can be executed either synchronously or asynchronously. In the ...

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Virtual threads, revealed in Java's Project Loom and generally available with the Java 21 LTS, promise unparalleled scalability, simplified asynchronous coding and more efficient resource utilization.

Even as a mid-level API ensconced in modern UI component-based Web frameworks and Web services technologies, the incoming Servlet 3.0 specification (JSR 315) will have groundbreaking impact on Java ...