This is actually a combination of customizing the module's location and file name. The sample below shows how to specify the URI of a module being placed in the EAR file:
<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-ear-plugin</artifactId> <version>3.1.0</version> <configuration> [...] <modules> <jarModule> <groupId>artifactGroupId</groupId> <artifactId>artifactId</artifactId> <uri>APP-INF/lib/anotherName-1.2.3.jar</uri> </jarModule> </modules> </configuration> </plugin> </plugins> </build>