Resources extraction conflict between maven-dependency-plugin and maven-war-plugin? - maven

Question

I used to have some resources from dependencies extracted into the resulting WAR of my project (as an overlay). But since I added a call to the unpack goal of the dependencies plugin, it appears that only the resources from the ZIP archive are embedded into that WAR.
<groupId>com.xxx.custom.www.yyy</groupId>
<artifactId>www-yyy-war</artifactId>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>com.xxx.custom.www.yyy</groupId>
<artifactId>www-yyy-import</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>com.xxx.custom.www.yyy</groupId>
<artifactId>www-yyy-export</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>com.xxx.www</groupId>
<artifactId>www-server</artifactId>
<version>${www.version}</version>
<type>war</type>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<overlays>
<overlay />
<overlay>
<groupId>com.xxx.www</groupId>
<artifactId>www-server</artifactId>
<type>war</type>
</overlay>
</overlays>
</configuration>
</plugin>
</plugins>
</build>
What I want is to add the ZIP resources to the already existing resources. But I end up with only the ZIP resources, here.
<dependencies>
<dependency>
<groupId>com.xxx.custom.www.yyy</groupId>
<artifactId>www-yyy-etat</artifactId>
<version>${project.version}</version>
<type>zip</type>
</dependency>
...
</dependencies>
...
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.1.1</version>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.xxx.custom.www.yyy</groupId>
<artifactId>www-xxx-etat</artifactId>
<version>${project.version}</version>
<type>zip</type>
<outputDirectory>${project.build.directory}/war/work/com.xxx.www/www-server/WEB-INF/classes</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
Does anybody knows about an issue or sees what I'm doing wrong here?
Thanks very much for any help or suggestion.

Answer 1

I finally found out that overlays can handle different types, so here is the answer:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<overlays>
<overlay />
<overlay>
<groupId>com.xxx.www</groupId>
<artifactId>www-server</artifactId>
<type>war</type>
</overlay>
<overlay>
<groupId>com.xxx.custom.www.yyy</groupId>
<artifactId>www-yyy-etat</artifactId>
<type>zip</type>
<outputDirectory>WEB-INF/classes</outputDirectory>
</overlay>
</overlays>
</configuration>
</plugin>
There is no need for maven-dependency-plugin.