Maven exec:java goal on a multi-module project

Maven exec:java goal on a multi-module project

Running the exec:java goal in a multi-module Maven project can be a bit more complex than in a single-module project because you need to specify the module that contains the main class you want to execute. You can do this using the -pl (or --projects) and -am (or --also-make) options to select the specific module and its dependencies for building and running. Here's how you can use the exec:java goal in a multi-module project:

Assuming you have a multi-module project structure like this:

my-multi-module-project/
    ������ module1/
    ��   ������ src/
    ��       ������ main/
    ��           ������ java/
    ��               ������ com/
    ��                   ������ example/
    ��                       ������ Module1Main.java
    ������ module2/
        ������ src/
            ������ main/
                ������ java/
                    ������ com/
                        ������ example/
                            ������ Module2Main.java

You want to run the Module1Main class in module1. Here are the steps:

  1. Open a terminal/command prompt and navigate to the root directory of your multi-module project.

  2. Use the following Maven command to execute the Module1Main class in module1:

    mvn clean install -pl module1 -am exec:java -Dexec.mainClass="com.example.Module1Main"
    • -pl module1: This option specifies the module (module1) that you want to build and execute.
    • -am: This option tells Maven to also build the modules that module1 depends on.
    • exec:java: This is the exec plugin's java goal, which is used to execute Java classes.
    • -Dexec.mainClass="com.example.Module1Main": This option specifies the fully qualified name of the main class you want to execute in module1.

  3. Maven will build module1, its dependencies, and then execute the specified main class.

Make sure to replace "com.example.Module1Main" with the fully qualified name of the main class you want to execute in your specific module.

More Tags

babel-jest persistent-storage actionlink edmx .net-3.5 usdz bluez window.location cryptojs xslt-3.0

More Java Questions

More Statistics Calculators

More Math Calculators

More Investment Calculators

More Entertainment Anecdotes Calculators