Creating maven custom plugin

Question

I have created a custom plugin in Maven. However, the jar file that is created has the name CustomPlugin-1.0.jar.lastUpdated 'lastUpdated' is the extension, and it's not possible to open the file due to it being corrupt.

The steps I followed to create it are as follows:

• First I created a maven plugin using maven (created a maven project with packaging=maven-plugin ).
• Then I put a class in there that extends AbstractMojo and contains the custom plugin code.
• Then I built it with maven. Maven created the corrupt jar as mentioned above.

How do I create a valid jar file for a custom plugin?

Answer 1

Use maven-shade plugin to package your jar. It will automatically package and create a jar(fat-jar) with all the dependencies, resources and correct jar name and extension.

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-shade-plugin</artifactId>
  <version>3.0.0</version>
  <configuration>
    <!-- put your configurations here -->
  </configuration>
  <executions>
    <execution>
      <phase>package</phase>
      <goals>
        <goal>shade</goal>
      </goals>
    </execution>
  </executions>
</plugin>

Add this to your custom maven plugin pom and the build using mvn clean install .