From Java 21 to Java 25
From Java 21 to Java 25
Upgrade to Java 25 from Java 21
About the Book
Java 25 New Features from Java 21
Java Language
- Module Import Declarations
- Flexible Constructor Bodies
- Compact Source Files and Instance Main Methods
- Pattern Matching
Core Library
- Stream Gatherers
- Class-File API
- Integrity by Default
Multi-threading
- Scoped Values
- Structured Concurrency
- Synchronize Virtual Threads without Pinning
- Stable Values
JVM
- Garbage Collectors
- Compact Object Headers
- Project Leyden
Tools
- Launch Multi-File Source-Code Programs
- Annotations Processing
About the Author
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Table of Contents
- Introduction
- JEPs in Different Java Releases
- Install Java 25
- Build Tools
- Source Code
- Module Import Declarations
- Module Import Declaration
- Import Ambiguity
- Choose Import Declaration
- Flexible Constructor Bodies
- Compact Source Files and Instance Main Methods
- Instance main methods
- Compact Source Files
- IO
- Pattern Matching
- Unnamed Variables & Patterns
- Primitive Types in Patterns, instanceof, and switch
- Stream Gatherers
- Permanently Disable the Security Manager
- Class-File API
ClassFile
- Models
- Builders
- Transform
- Parse
- Generate
- Transform
- Integrity by Default
- Prepare to Restrict the Use of JNI
- Warn upon Use of Memory-Access Methods in sun.misc.Unsafe
- Scoped Values
- Thread Local
- ScopedValue
- Structured Concurrency
- Basic Usage
- Joiner
- Configuration
- Open a StructuredTaskScope
- Exception Handling
- A Concrete Example
- Joiner.allSuccessfulOrThrow
- Joiner.anySuccessfulResultOrThrow
- Close of StructuredTaskScope
- Synchronize Virtual Threads without Pinning
- Stable Values
- StableValue
- Stable Supplier
- Stable IntFunction
- Stable Function
- Stable List
- Stable Map
- Constant Folding Optimization
- Use StableValue
- JFR
- Method Timing and Tracing
- CPU-Time Profiling
- Garbage Collectors
- G1
- ZGC
- Generational Shenandoah
- Compact Object Headers
- Project Leyden
- Class Loading & Linking
- Method Profiling
- Launch Multi-File Source-Code Programs
- Annotations Processing
- 32-bit x86 Port
- Introduction
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