If you need the repackaged jar to have a different local name than the one defined by the artifactId attribute of the project, simply use the standard finalName as shown in the following example:
<project> ... <build> <finalName>my-app</finalName> <plugins> ... <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>2.1.12.RELEASE</version> <executions> <execution> <id>repackage</id> <goals> <goal>repackage</goal> </goals> </execution> </executions> ... </plugin> ... </plugins> ... </build> ... </project>
This configuration will generate the repackaged artifact in target/my-app.jar.