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  • Book Overview & Buying OpenJDK Cookbook
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OpenJDK Cookbook

OpenJDK Cookbook

By : Kobylyanskiy, Mironchenko
4 (2)
Buy this Book
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OpenJDK Cookbook

OpenJDK Cookbook

4 (2)
By: Kobylyanskiy, Mironchenko
Buy this Book

Overview of this book

If you are an experienced Java developer using Java 7 platform and want to get your grips on OpenJDK for Java development, this is the book for you. JDK users who wish to migrate to OpenJDK will find this book very useful.
Table of Contents (15 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Sections
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Conventions
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Reader feedback
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Customer support
Lock Free Chapter
1
1. Getting Started with OpenJDK
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1. Getting Started with OpenJDK
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Introduction
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Distinguishing OpenJDK from Oracle JDK
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Installing OpenJDK on Windows
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Configuring OpenJDK on Windows
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Installing OpenJDK on Linux
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Configuring OpenJDK on Linux
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Navigating through OpenJDK groups and projects
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2. Building OpenJDK 6
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2. Building OpenJDK 6
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Introduction
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Preparing CA certificates
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Building OpenJDK 6 on Ubuntu Linux 12.04 LTS
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Setting up the minimum build environment for the most compatible Linux builds
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Installing Cygwin for Windows builds
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Building 32-bit FreeType libraries for OpenJDK 6 on Windows
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Building 64-bit FreeType libraries for OpenJDK 6 on Windows
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Building 32-bit OpenJDK 6 on Windows 7 SP1
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Building 64-bit OpenJDK 6 on Windows 7 x64 SP1
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3. Building OpenJDK 7
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3. Building OpenJDK 7
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Introduction
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Building OpenJDK 7 on Ubuntu Linux 12.04 LTS
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Building OpenJDK 7 on Mac OS X
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Building 32-bit FreeType libraries for OpenJDK 7 on Windows
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Building 64-bit FreeType libraries for OpenJDK 7 on Windows
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Building 32-bit OpenJDK 7 on Windows 7 SP1
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Building 64-bit OpenJDK 7 on Windows 7 x64 SP1
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Preparing a standalone toolchain for 32- and 64-bit Windows' builds
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4. Building OpenJDK 8
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4. Building OpenJDK 8
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Introduction
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Working with GNU Autoconf
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Building OpenJDK 8 Ubuntu Linux 12.04 LTS
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Using ccache to speed up the OpenJDK 8 build process
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Building OpenJDK 8 on Mac OS X
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Building OpenJDK 8 on Windows 7 SP1
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5. Building IcedTea
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5. Building IcedTea
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Introduction
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Building IcedTea 6
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Building IcedTea 7
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Building OpenJDK 7 with IcedTea patches
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Building IcedTea 7 with the NSS security provider
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Building IcedTea 6 with the SystemTap support
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6. Building IcedTea with Other VM Implementations
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6. Building IcedTea with Other VM Implementations
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Introduction
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Configuring cross-compilation between ARM and x86
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Building IcedTea for ARM with integrated CACAO VM
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Porting JamVM to use OpenJDK
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Configuring Zero-assembler with the Shark compiler to use OpenJDK
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Building for MIPS and other architectures using OpenEmbedded recipes
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7. Working with WebStart and the Browser Plugin
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7. Working with WebStart and the Browser Plugin
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Introduction
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Building the IcedTea browser plugin on Linux
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Using the IcedTea Java WebStart implementation on Linux
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Preparing the IcedTea Java WebStart implementation for Mac OS X
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Preparing the IcedTea Java WebStart implementation for Windows
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8. Hacking OpenJDK
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8. Hacking OpenJDK
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Introduction
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Setting up the development environment with NetBeans
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Working with Mercurial forest
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Understanding OpenJDK 6 and 7 incremental builds
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Debugging Java code using NetBeans
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Debugging C++ code using NetBeans
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Using NetBeans to compile HotSpot
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Using HotSpot dev parameters
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Adding new intrinsic to HotSpot
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Building VisualVM from the source code
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Creating a plugin for VisualVM
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Getting benefits from the AdoptOpenJDK project
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9. Testing OpenJDK
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9. Testing OpenJDK
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Introduction
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Running tests using the downloaded or the built version of jtreg
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Building jtreg from the source
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Running the standard set of OpenJDK tests
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Writing your own test for jtreg
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Using jtreg in GUI mode
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Writing TestNG tests for jtreg
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Compiling JT Harness from the source code
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Building and running jcstress
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Writing tests for jcstress
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Creating a benchmark project using JMH
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Downloading the source and compiling JHM
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10. Contributing to OpenJDK
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10. Contributing to OpenJDK
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Introduction
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Becoming a contributor
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Generating a patch with webrev
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Backporting OpenJDK v9 patches to OpenJDK v8
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Understanding OpenJDK groups
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Understanding OpenJDK projects
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Suggesting new JSRs
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Suggesting new JEPs
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11. Troubleshooting
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11. Troubleshooting
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Introduction
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Navigating through the process workflow
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Submitting a defect to the OpenJDK bug systems
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Creating a patch using NetBeans
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Creating a code review
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12. Working with Future Technologies
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12. Working with Future Technologies
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Introduction
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Building OpenJDK 9 on Mac OS X using Clang
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Building OpenJDK 9 on Windows using MSYS
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Running and testing the early access preview of OpenJDK 9
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Using Jigsaw
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Building OpenJDK 9 with Graal
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Building OpenJDK 9 with Sumatra
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13. Build Automation
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13. Build Automation
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Introduction
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Installing VirtualBox
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Preparing SSH keys
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Preparing VirtualBox machines with Linux
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Preparing VirtualBox machines with Mac OS X
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Preparing VirtualBox machines with Windows
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Automating builds
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Building cross-platform installers
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Index
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Index

Generating a patch with webrev

Doing any update in a software product normally requires some kind of review process. The code should not be submitted into a repository unless someone else has already looked at it. In OpenJDK, the tool for this purpose is webrev, which allows you to create code reviews that can be shared with other members of the community.

Getting ready

Webrev is a Korn shell script, which means that Korn shell must be installed on the machine before you can use it. On a Linux machine, run yum install ksh or an equivalent command. On a Windows machine, ensure that ksh in included in the Cygwin installation.

Apart from the environment set up to create the patch review, some changes must be made in the source code as well. As an easy example, we can just modify some comments in a file, as discussed next. Open the file, hotspot/src/os/linux/vm/jvm_linux.cpp and update the header or just add a comment.

How to do it...

As webdev is a shell script, start by launching your shell and...

CONTINUE READING
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Tech Concepts
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Programming languages
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OpenJDK Cookbook
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