By default, the repackage goal will replace the original artifact with the executable one. If you need to only deploy the original jar and yet be able to run your app with the regular file name, configure the plugin as follows:

<project>
  ...
  <build>
    ...
    <plugins>
      ...
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>2.0.9.BUILD-SNAPSHOT</version>
        <executions>
          <execution>
            <goals>
              <goal>repackage</goal>
            </goals>
            <configuration>
              <attach>false</attach>
            </configuration>
          </execution>
        </executions>
        ...
      </plugin>
      ...
    </plugins>
    ...
  </build>
  ...
</project>

This configuration will generate two artifacts: the original one and the executable counter part produced by the repackage goal. Only the original one will be installed/deployed.