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Maven Essentials

You're reading from   Maven Essentials Get started with the essentials of Apache Maven and get your build automation system up and running quickly

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Product type Paperback
Published in Dec 2015
Publisher
ISBN-13 9781783986767
Length 184 pages
Edition 1st Edition
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Authors (2):
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Russell E Gold Russell E Gold
Author Profile Icon Russell E Gold
Russell E Gold
Prabath Siriwardena Prabath Siriwardena
Author Profile Icon Prabath Siriwardena
Prabath Siriwardena
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Table of Contents (9) Chapters Close

Preface 1. Apache Maven Quick Start FREE CHAPTER 2. Understanding the Project Object Model (POM) 3. Maven Archetypes 4. Maven Plugins 5. Build Lifecycles 6. Maven Assemblies 7. Best Practices Index

Super POM


Any POM file can point to its parent POM. In case the parent POM element is missing, there is a system wide POM file that is automatically treated as the parent POM. This POM file is well known as the super POM. Ultimately, all the application POM files get extended from the super POM. The super POM file is at the top of the POM hierarchy and is bundled inside MAVEN_HOME/lib/maven-model-builder-3.3.3.jar - org/apache/maven/model/pom-4.0.0.xml. In Maven 2, this was bundled inside maven-2.X.X-uber.jar. All the default configurations are defined in the super POM file. Even the simplest form of a POM file will inherit all the configurations defined in the super POM file. Whatever configuration you need to override, you can do it by redefining the same section in your application POM file. The following lines of code show the super POM file configuration, which comes with Maven 3.3.3:

<project>
  <modelVersion>4.0.0</modelVersion>

The Maven central is the only repository...

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