It might happen that your project has the same artifactId for different groups. To avoid file name clashing, specify the full file name mapping.
- <build>
- <plugins>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-ear-plugin</artifactId>
- <version>2.10.1</version>
- <configuration>
- [...]
- <fileNameMapping>full</fileNameMapping>
- </configuration>
- </plugin>
- </plugins>
- </build>
As a result, each artifact file name will be prefixed by the groupId to avoid clashes. There is also a no-version file name mapping if you do not want to get the version in the file names.