Jini is a simple set of Java Classes and services that allows devices (e.g., printers) and services (e.g., printing) to access each other seamlessly, adapt to a continually changing environment, and share code and configurations transparently. Jini has the potential to radically alter our use of computer networks, since it allows and encourages totally new types of services and new uses of existing networks. Jini in a Nutshell is a quick reference guide to developing services and clients using Jini. It covers everything an experienced Java programmer needs to know to implement Jini, including tutorial chapters to get you up to speed quickly and reference chapters that analyze and explain every Java package related to Jini. Over the course of the book the authors develop a complete example program--with samples of both server and client applications.Topics covered Jini in a Nutshell covers the Jini 1.0 specification and requires the Java 2 Platform.

本书从JVM和Java API两个方面，深入地介绍了Java 8和Java 11等新的Java长期支持版本中影响性能的因素。本书先从Java应用程序的通用方法、基准测试的缺陷、性能监控工具等方面，分析了如何通过JVM的配置方式影响程序的性能；接着从即时编译、垃圾回收、堆内存与原生内存最佳实践、线程与同步的性能等方面，分析了常见的优化方向及其特性。第2版专注于更加成熟的Java 8和Java 11，主要的更新内容涉及G1垃圾回收器和Java飞行记录器，以及Java在容器化环境下的性能变化。

Coding and testing are often considered separate areas of expertise. In this comprehensive guide, author and Java expert Scott Oaks takes the approach that anyone who works with Java should be equally adept at understanding how code behaves in the JVM, as well as the tunings likely to help its performance. You’ll gain in-depth knowledge of Java application performance, using the Java Virtual Machine (JVM) and the Java platform, including the language and API. Developers and performance engineers alike will learn a variety of features, tools, and processes for improving the way Java 7 and 8 applications perform. Apply four principles for obtaining the best results from performance testing Use JDK tools to collect data on how a Java application is performing Understand the advantages and disadvantages of using a JIT compiler Tune JVM garbage collectors to affect programs as little as possible Use techniques to manage heap memory and JVM native memory Maximize Java threading and synchronization performance features Tackle performance issues in Java EE and Java SE APIs Improve Java-driven database application performance

本书第三版已经过完整的扩编与修订。本书完整收录了来自java．util．concurrent的并发功能。新的章节涵盖thread的性能、在Swing中使用thread、thread与Collection class、thread pool以及thread与I／0(传统的、新型的、中断的)。还无法配置J2SE 5．0的开发者可以借由附录中所提供的thread工具于较早的Java版本中达成类似的功能。