jdk17

Java Development Kit (JDK) 17 is a recent release of the Java platform.  JDK 17 introduced several new features, improvements, and enhancements. Some of the notable features and changes included:

1. Sealed Classes: JDK 17 introduced sealed classes and interfaces, which allow you to control which other classes or interfaces can extend or implement them. This helps in enhancing the encapsulation of your code.

2. Pattern Matching for the instanceof Operator: This feature simplifies the code needed for conditional type checking and casting. It introduces the instanceof operator with a pattern keyword, making code more concise.

3. Foreign Function & Memory API (Incubator): The Foreign Function & Memory API was introduced as an incubator feature, enabling interaction with native code and memory in a safer and more controlled manner.

4. Deprecation of RMI Activation System: The RMI Activation System, which had been deprecated since JDK 11, was removed in JDK 17. Applications relying on this feature needed to find alternative solutions.

5. Strong encapsulation of JDK internals: JDK 17 continued the effort to encapsulate internal APIs, making it more challenging for developers to rely on non-public APIs, which can change without notice.

6. Other Enhancements: JDK 17 also included various performance improvements, bug fixes, and updates to existing libraries and APIs.