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    Efficient Working with Maven: 24 Commands and Options Overview

    Introduction

    Maven is one of the most popular tools for project and dependency management in Java applications. It provides a variety of commands and options that can assist you in your daily tasks. In this cheat sheet, we use a sample project to demonstrate some useful Maven commands. Originally written for OpenJDK 13.0.1 and Maven 3.6.3, these commands have been verified with OpenJDK 19.0.1 and Maven 3.8.7.

    Maven Commands

    1. `mvn clean`

    With this command, you can clean the Maven project by deleting the `target` directory:

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    mvn clean

    2. `mvn compiler:compile`

    This command compiles the Java source classes of the Maven project:

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    mvn compiler:compile

    3. `mvn compiler:testCompile`

    This command compiles the test classes of the Maven project:

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    mvn compiler:testCompile

    4. `mvn package`

    This command builds the Maven project and packages it into a JAR, WAR, etc.:

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    mvn package

    5. `mvn install`

    This command builds the Maven project and installs the project files (JAR, WAR, pom.xml, etc.) to the local repository:

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    mvn install

    6. `mvn deploy`

    This command deploys the artifact to the remote repository. This requires proper configuration of the remote repository in the project’s `code>pom.xml` file and providing authentication details in Maven’s `settings.xml` file.

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    mvn deploy

    7. `mvn validate`

    This command validates the Maven project to ensure that everything is correct and all the necessary information is available:

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    mvn validate

    8. `mvn dependency:tree`

    Generates the dependency tree of the Maven project:

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    mvn dependency:tree

    9. `mvn dependency:analyze`

    This command analyzes the Maven project to identify unused declared and used undeclared dependencies:

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    mvn dependency:analyze

    10. `mvn archetype:generate`

    Generates skeleton Maven projects of different types, such as JAR, web application, Maven site, etc.:

    <

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    mvn archetype:generate

    11. `mvn site:site`

    Generates a site for the project:

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    mvn site:site

    12. `mvn test`

    This command runs the test cases of the project:

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    mvn test

    13. `mvn compile<`

    Compiles the source Java classes of the project:

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    mvn compile

    14. `mvn verify`

    Builds the project, runs all the test cases, and checks the results of integration tests to ensure quality criteria are met:

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    mvn verify

    15. `mvn -help`

    Displays the Maven command line and all available options:

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    mvn -help

    16. `mvn -f dir/pom.xml package`

    Builds a project from a different location:

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    mvn -f dir/pom.xml package

    17. `mvn -o package`

    Runs the Maven build in offline mode:

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    mvn -o package

    18. `mvn -q package`

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    mvn -q package

    19. `mvn -X package`

    Displays the Maven version and runs the build in debug mode, showing all messages:

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    mvn -X package

    20. `mvn -v`

    Displays the Maven version information:

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    mvn -v

    21. `mvn -V package`

    Displays the Maven version and continues with the build:

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    mvn -V package

    22. `mvn -DskipTests package`

    Skips the execution of unit tests during the build:

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    mvn -DskipTests package

    23. `mvn -Dmaven.test.skip=true package`

    Also skips the execution of test cases:

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    mvn -Dmaven.test.skip=true package

    24. `mvn -T 4 clean install`

    Executes the build with parallel threads to reduce build time:

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    mvn -T 4 clean install

    Maven Options

    Maven also provides a variety of command-line options to customize the build process:

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