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I have a project with 2 profiles, because UAT and PROD use different versions of the same jar.
I have noticed that if i don't explicitly call mvn clean ... the deployed EAR will have BOTH UAT and PROD jars.
Is there a way in the POM to specify that Maven should always clean before any building?
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mvn clean: Cleans the project and removes all files generated by the previous build. mvn compile: Compiles source code of the project. mvn test-compile: Compiles the test source code.
Cleaning a Maven project using the command-line The Clean Plugin can be called to execute in the command-line without any additional configurations. Like the other plugins, to run the Clean Plugin, you use: mvn clean:clean.
In Maven, you can use Apache Maven Dependency Plugin, goal dependency:purge-local-repository to remove the project dependencies from the local repository, and re-download it again.
Use the maven-clean-plugin with the initialize phase as given here
http://maven.apache.org/plugins/maven-clean-plugin/usage.html
<project> [...] <build> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>2.4.1</version> <executions> <execution> <id>auto-clean</id> <phase>initialize</phase> <goals> <goal>clean</goal> </goals> </execution> </executions> </plugin> </plugins> </build> [...] </project> Sure. Visit the Maven clean plugin usage page, they provide an example how to run the plugin automatically during build.
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