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Java Concurrency in Practice

by: Brian Goetz

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On-line Price: TBAPaperbackpackage, 384

Retail Price: TBA

Publisher: ,24.05.06

Category: JAVA Level: I/A

ISBN: 0321349601
ISBN13: 9780321349606

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PRESCRIBED TEXT FOR ITC527 AT CSU DISTANCE ED, SEMESTER 1 2013
PRESCRIBED TEXT FOR ITC511 AT CSU DISTANCE ED, SEMESTER 1 2013
PRESCRIBED TEXT FOR ITC527 AT CSU, SEMESTER 1 2010

'I was fortunate indeed to have worked with a fantastic team on the design and implementation of the concurrency features added to the Java platform in Java 5.0 and Java 6. Now this same team provides the best explanation yet of these new features, and of concurrency in general. Concurrency is no longer a subject for advanced users only. Every Java developer should read this book.'
--Martin Buchholz
JDK Concurrency Czar, Sun Microsystems

'For the past 30 years, computer performance has been driven by Moore's Law; from now on, it will be driven by Amdahl's Law. Writing code that effectively exploits multiple processors can be very challenging. Java Concurrency in Practice provides you with the concepts and techniques needed to write safe and scalable Java programs for today's--and tomorrow's--systems.'
--Doron Rajwan
Research Scientist, Intel Corp

'This is the book you need if you're writing--or designing, or debugging, or maintaining, or contemplating--multithreaded Java programs. If you've ever had to synchronize a method and you weren't sure why, you owe it to yourself and your users to read this book, cover to cover.'
--Ted Neward
Author of Effective Enterprise Java

'Brian addresses the fundamental issues and complexities of concurrency with uncommon clarity. This book is a must-read for anyone who uses threads and cares about performance.'
--Kirk Pepperdine
CTO, JavaPerformanceTuning.com

'This book covers a very deep and subtle topic in a very clear and concise way, making it the perfect Java Concurrency reference manual. Each page is filled with the problems (and solutions!) that programmers struggle with every day. Effectively exploiting concurrency is becoming more and more important now that Moore's Law is delivering more cores but not faster cores, and this book will show you how to do it.'
--Dr. Cliff Click
Senior Software Engineer, Azul Systems

'I have a strong interest in concurrency, and have probably written more thread deadlocks and made more synchronization mistakes than most programmers. Brian's book is the most readable on the topic of threading and concurrency in Java, and deals with this difficult subject with a wonderful hands-on approach. This is a book I am recommending to all my readers of The Java Specialists' Newsletter, because it is interesting, useful, and relevant to the problems facing Java developers today.'
--Dr. Heinz Kabutz
The Java Specialists' Newsletter

'I've focused a career on simplifying simple problems, but this book ambitiously and effectively works to simplify a complex but critical subject: concurrency. Java Concurrency in Practice is revolutionary in its approach, smooth and easy in style, and timely in its delivery--it's destined to be a very important book.'
--Bruce Tate
Author of Beyond Java

'Java Concurrency in Practice is an invaluable compilation of threading know-how for Java developers. I found reading this book intellectually exciting, in part because it is an excellent introduction to Java's concurrency API, but mostly because it captures in a thorough and accessible way expert knowledge on threading not easily found elsewhere.'
--Bill Venners
Author of Inside the Java Virtual Machine

Threads are a fundamental part of the Java platform. As multicore processors become the norm, using concurrency effectively becomes essential for building high-performance applications. Java SE 5 and 6 are a huge step forward for the development of concurrent applications, with improvements to the Java Virtual Machine to support high-performance, highly scalable concurrent classes and a rich set of new concurrency building blocks. In Java Concurrency in Practice, the creators of these new facilities explain not only how they work and how to use them, but also the motivation and design patterns behind them.

However, developing, testing, and debugging multithreaded programs can still be very difficult; it is all too easy to create concurrent programs that appear to work, but fail when it matters most: in production, under heavy load. Java Concurrency in Practice arms readers with both the theoretical underpinnings and concrete techniques for building reliable, scalable, maintainable concurrent applications. Rather than simply offering an inventory of concurrency APIs and mechanisms, it provides design rules, patterns, and mental models that make it easier to build concurrent programs that are both correct and performant.

This book covers:

Basic concepts of concurrency and thread safety
Techniques for building and composing thread-safe classes
Using the concurrency building blocks in java.util.concurrent
Performance optimization dos and don'ts
Testing concurrent programs
Advanced topics such as atomic variables, nonblocking algorithms, and the Java Memory Model

As processors become faster and multiprocessor systems become cheaper, the need to take advantage of multithreading in order to achieve full hardware resource utilization only increases the importance of being able to incorporate concurrency in a wide variety of application categories.

For many developers, concurrency remains a mystery. Developing, testing and debugging multithreaded programs is extremely difficult because concurrency hazards do not manifest themselves uniformly or reliably. This book is intended to be neither an introduction to concurrency (any threading chapter in an 'intro' book does that) nor is it an encyclopedic reference of All Things Concurrency (that would be Doug Lea's Concurrent Programming in Java). Instead, this title is a combination of concepts, guidelines, and examples intended to assist developers in the difficult process of understanding concurrency and its new tools in J2SE 5.0.

Filled with contributions from Java gurus such as Josh Bloch, David Holmes and Doug Lea, this book provides any Java programmers with the basic building blocks they need to gain a basic understanding of concurrency and its benefits.

Features and Benefits

A how-to companion to Doug Lea's 'Concurrent Programming in Java', this book is the only authorative and practical guide to Java Concurrency

Powerhouse author team with contributions from Doug Lea, Josh Bloch and David Holmes

A practical, hands-on, example-driven guide for every working Java programmer

Based on J2SE 5.0 which includes many new concurrency features that make concurrency development much more accesible (and necessary)


Table of Contents

top


Listings


    xii
Preface


    xvii

Chapter 1: Introduction


    1

1.1

A (very) brief history of concurrency


        1
1.2

Benefits of threads


      3
1.3

Risks of threads


        5
1.4

Threads are everywhere


        9
Part I: Fundamentals


    13

Chapter 2: Thread Safety


    15

2.1

What is thread safety?


      17
2.2

Atomicity


    19
2.3

Locking


    23
2.4

Guarding state with locks


      27
2.5

Liveness and performance


        29
Chapter 3: Sharing Objects


    33

3.1

Visibility


      33
3.2

Publication and escape


        39
3.3

Thread confinement


        42
3.4

Immutability


        46
3.5

Safepublication


        49
Chapter 4: Composing Objects


    55

4.1

Designing a thread-safe class


      55
4.2

Instance confinement


      58
4.3

Delegating thread safety


      62
4.4

Adding functionality to existing thread-safe classes


        71
4.5

Documenting synchronization policies


        74
Chapter 5: Building Blocks


    79

5.1

Synchronized collections


        79
5.2

Concurrent collections


    84
5.3

Blocking queues and the producer-consumer pattern


    87
5.4

Blocking and interruptible methods


    92
5.5

Synchronizers


    94
5.6

Building an efficient, scalable result cache


      101
Part II: Structuring Concurrent Applications


    111

Chapter 6: Task Execution


    113

6.1

Executing tasks in threads


      113
6.2

The Executor framework


    117
6.3

Finding exploitable parallelism


      123
Chapter 7: Cancellation and Shutdown


    135

7.1

Task cancellation


      135
7.2

Stopping a thread-based service


        150
7.3

Handling abnormal thread termination


        161
7.4

JVM shutdown


      164
Chapter 8: Applying Thread Pools


    167

8.1

Implicit couplings between tasks and execution policies


    167
8.2

Sizing thread pools


      170
8.3

Configuring ThreadPoolExecutor


    171
8.4

Extending ThreadPoolExecutor


    179
8.5

Parallelizing recursive algorithms


    181
Chapter 9: GUI Applications


    189

9.1

Why are GUIs single-threaded?


      189
9.2

Short-running GUI tasks


    192
9.3

Long-running GUI tasks


    195
9.4

Shared data models


    198
9.5

Other forms of single-threaded subsystems


      202
Part III: Liveness, Performance, and Testing


    203

Chapter 10: Avoiding Liveness Hazards


    205

10.1

Deadlock


    205
10.2

Avoiding and diagnosing deadlocks


    215
10.3

Other liveness hazards


      218
Chapter 11: Performance and Scalability


    221

11.1

Thinking about performance


      221
11.2

Amdahl's law


    225
11.3

Costs introduced by threads


    229
11.4

Reducing lock contention


      232
11.5

Example: Comparing Map performance


    242
11.6

Reducing context switch overhead


      243
Chapter 12: Testing Concurrent Programs


    247

12.1

Testing for correctness


    248
12.2

Testing for performance


      260
12.3

Avoiding performance testing pitfalls


        266
12.4

Complementary testing approaches


    270
Part IV: Advanced Topics


    275

Chapter 13: Explicit Locks


    277

13.1

Lock and ReentrantLock


      277
13.2

Performance considerations


      282
13.3

Fairness


      283
13.4

Choosing between synchronized and ReentrantLock


      285
13.5

Read-write locks


    286
Chapter 14: Building Custom Synchronizers


    291

14.1

Managing state dependence


      291
14.2

Using condition queues


      298
14.3

Explicit condition objects


    306
14.4

Anatomy of a synchronizer


    308
14.5

AbstractQueuedSynchronizer


      311
14.6

AQS in java.util.concurrent synchronizer classes


      314
Chapter15: Atomic Variables and Nonblocking Synchronization


    319

15.1

Disadvantages of locking


    319
15.2

Hardware support for concurrency


      321
15.3

Atomic variable classes


        324
15.4

Nonblocking algorithms


      329
Chapter 16: The Java Memory Model


    337

16.1

What is a memory model, and why would I want one?


        337
16.2

Publication


    344
16.3

Initialization safety


    349
Appendix A: Annotations for Concurrency


    353

A.1

Class annotations


    353
A.2

Field andmethod annotations


      353
Bibliography


    355
Index


    359