Some compatibility-breaking changes were required to close potential security holes or to fix implementation or design bugs. Most failures to do so are considered bugs, except for a small number of cases where compatibility was deliberately broken, as described on our compatibility web page. Although some incompatible changes were necessary, most software should migrate to the current version with no changes. Every effort has been made to support programs written for previous versions of the Java platform. See the JDK 17 Migration Guide for a list of known compatibility issues. Please check the on-line release notes for the latest information as they will be updated as needed. See the Release Notes for additional information pertaining to this release. This documentation provides brief descriptions of the API with an emphasis on specifications, not on code examples Release Notes For API documentation, refer to the The Java Platform, Standard Edition API Specification. To obtain the documentation bundle visit the Java SE download page. The Java SE documentation is also available in a download bundle which you can install on your machine. The on-line Java Platform, Standard Edition (Java SE) Documentation contains API specifications, feature descriptions, developer guides, reference pages for JDK tools and utilities, and links to related information.

Installation instructions are located on the Java SE documentation site. The JDK includes tools useful for developing, testing, and monitoring programs written in the Java programming language and running on the Java platform. The JDK is a development environment for building applications and components using the Java programming language. Thank you for downloading this release of the Java Platform, Standard Edition Development Kit (JDK). Unlimited Strength Java Cryptography Extension.

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