How to copy external dependency to Open Liberty during maven build - maven

Question

UPDATE - July 2021:
While the accepted answer using the dependency plugin was the best solution at the time, the answer from #ltlBeBoy leverages the 'copyDependencies' support since added to liberty-maven-plugin. Using 'copyDependencies' is usually a better solution, since it is integrated into the "dev mode" loop and less verbose (at the expense of supporting fewer options than the dependency plugin).
ORIGINAL QUESTION
I need to copy derby.jar into Open Liberty shared directory
${project.build.directory}/liberty/wlp/usr/shared/resources/. I have the following setup in the pom.xml file:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.10</version>
<executions>
<execution>
<id>copy-derby-dependency</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<includeArtifactIds>derby</includeArtifactIds>
<outputDirectory>${project.build.directory}/liberty/wlp/usr/shared/resources/</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
and the part for configuring open liberty
<plugin>
<groupId>net.wasdev.wlp.maven.plugins</groupId>
<artifactId>liberty-maven-plugin</artifactId>
<version>${openliberty.maven.version}</version>
<executions>
<execution>
<id>package-server</id>
<phase>package</phase>
<goals>
<goal>create-server</goal>
<goal>install-apps</goal>
<goal>package-server</goal>
</goals>
<configuration>
<outputDirectory>target/wlp-package</outputDirectory>
</configuration>
</execution>
</executions>
<configuration>
<assemblyArtifact>
<groupId>io.openliberty</groupId>
<artifactId>openliberty-runtime</artifactId>
<version>${openliberty.version}</version>
<type>zip</type>
</assemblyArtifact>
<configFile>src/main/liberty/config/server.xml</configFile>
<appArchive>${project.build.directory}/${final.name}.war</appArchive>
<packageFile>${project.build.directory}/${final.name}.jar</packageFile>
<include>runnable</include>
<serverName>${final.name}</serverName>
<installAppPackages>project</installAppPackages>
<configDirectory>${project.basedir}/src/main/liberty/server</configDirectory>
<bootstrapProperties>
<project.name>${final.name}</project.name>
<jwt.issuer>https://server.example.com</jwt.issuer>
</bootstrapProperties>
</configuration>
</plugin>
With this setup I have to execute mvn package goal twice. It looks like that when liberty-maven-plugin is executed the ${project.build.directory}/liberty/wlp/usr/shared/resources/ folder is removed if there is no liberty server under liberty/wlp/.
Maven LOG:
[INFO] --- maven-dependency-plugin:2.10:copy-dependencies (copy-derby-dependency) # account ---
[INFO] Copying derby-10.15.1.3.jar to /Users/anton/github/account/target/liberty/wlp/usr/shared/resources/derby-10.15.1.3.jar
and after it
[INFO] --- liberty-maven-plugin:2.2:create-server (package-server) # account ---
[INFO] CWWKM2110I: Uninstalling: /Users/anton/github/account/target/liberty/wlp.
Can someone please help me with this?

Answer 1

Here's an example from the Session Cache guide from OpenLiberty.io showing how this can be done. The example is getting a hazelcast.jar, but it could be used for any jar hosted in maven.
https://github.com/OpenLiberty/guide-sessions/blob/master/finish/pom.xml
<!-- package hazelcast.jar -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.1.1</version>
<executions>
<execution>
<id>copy</id>
<phase>package</phase>
<goals>
<goal>copy</goal>
</goals>
</execution>
</executions>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast</artifactId>
<version>${hazelcast.version}</version>
<type>jar</type>
<overWrite>false</overWrite>
<outputDirectory>${project.build.directory}/liberty/wlp/usr/shared/resources</outputDirectory>
<destFileName>hazelcast.jar</destFileName>
</artifactItem>
</artifactItems>
<outputDirectory>${project.build.directory}/liberty/wlp/usr/shared/resources</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>true</overWriteSnapshots>
</configuration>
</plugin>

Answer 2

As already stated in my other answer, starting from version 3.3 of the Liberty Maven Plug-in there is a copyDependencies parameter:
pom.xml
<plugins>
<plugin>
<groupId>io.openliberty.tools</groupId>
<artifactId>liberty-maven-plugin</artifactId>
<version>3.3.4</version>
<configuration>
<!-- Usually best to add configuration at the plugin level rather than trying to configure particular executions -->
<copyDependencies>
<dependencyGroup>
<!-- Relative to server config directory -->
<location>lib/global/jdbc</location>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
</dependency>
</dependencyGroup>
</copyDependencies>
</configuration>
...
server.xml
...
<!-- Derby Library Configuration -->
<library id="derbyJDBCLib">
<fileset dir="${server.config.dir}/lib/global/jdbc" includes="derby*.jar"/>
</library>
...
See documentation for further details.