Home Java Java SE 21 JDK 21 Documentation Guides JDK Migration Guide HTML PDF Helps you to identify potential issues and give you suggestions on how to proceed as you migrate your existing Java application to JDK 21. Installation Guide HTML PDF Describes the process for installing JDK 21 and JRE 21 on your Windows, macOS, and Linux platforms. Flight Recorder API Programmer's Guide HTML PDF This guide shows you how to use the Flight Recorder API to create your own events, record your own data, and view and parse the recordings. Internationalization Guide HTML PDF Summarizes internationalization APIs and features of Java SE. Java Core Libraries Developer Guide HTML PDF Provides information about the Java core libraries. Java Remote Method Invocation API Guide HTML PDF Provides security recommendations for RMI applications. HotSpot Virtual Machine Garbage Collection Tuning Guide HTML PDF Describes the garbage collection methods included in the Java HotSpot Virtual Machine (Java HotSpot VM) and helps you determine the best method for your needs. Java Virtual Machine Guide HTML PDF Describes the features of the Java Virtual Machine technology, including the Java HotSpot VM technology. Java SE Language Updates HTML PDF Describes the new and updated language features in Java SE 9 and subsequent releases. Java Management Extensions Guide HTML PDF Provides an introduction to Java Management Extension technology. Java SE Monitoring and Management Guide HTML PDF Describes the utilities provided with Java Platform, Standard Edition (Java SE) for monitoring and managing the performance of a Java Virtual Machine and the Java applications that are running in it. Security Developer Guide HTML PDF Provides information about Java security technology, tools, and implementations of commonly used security algorithms, mechanisms, and protocols. Java Shell User Guide HTML PDF Describes how to use Java Shell (JShell), a Read-Eval-Print Loop (REPL) tool for exploring the Java language. JavaDoc Guide HTML PDF Explains how to use the Javadoc tool that is installed with the Java Development Kit (JDK). Packaging Tool User Guide HTML PDF How to use the Java packaging tool, jpackage, to create self-contained application bundles that users can install and run on their systems. Troubleshooting Guide HTML PDF Helps troubleshoot issues that might occur with Java Client applications created on the Java Platform, Standard Edition (Java SE) and Java HotSpot VM. Java Accessibility Guide HTML PDF Describes Java Access Bridge, Java Accessibility API (JAAPI), and Java Accessibility Utilities, which enable you to create accessible applications.
