maven-dependency-plugin usage to download dependency jars

Hoping someone can explain how to set the plugin options correctly.

I am looking to have a pom file that someone could execute an mvn command on to download all the jars of the dependencies (transitive included) defined in the pom (including their sources and javadoc jars) from Maven Central and copy them to a specified directory.

My question appears quite similar to maven-dependency-plugin ignores outputDirectory configuration but dwells on a slightly different aspect. Tried the approach advised in the accepted answer there but that didn't work.

pom file:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>gq.jetstream</groupId>
    <artifactId>maven-download-sources-javadocs</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <properties>
        <org.springframework.version>5.2.22.RELEASE</org.springframework.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>
    </dependencies>
    <build>
        <!-- <sourceDirectory>src</sourceDirectory> -->
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>3.3.0</version>

                <executions>
                   <execution>
                     <id>copy-dependencies</id>
                     <phase>package</phase>
                     <goals>
                       <goal>copy-dependencies</goal>
                     </goals>
                     <configuration>
                       <includeScope>runtime</includeScope>
                       <classifier>sources</classifier>
                       <classifier>javadoc</classifier>
                       <outputDirectory>${project.build.directory}/dependency-jars/</outputDirectory>
                       <includeClassifiers>sources,javadoc</includeClassifiers>
                     </configuration>
                   </execution>
                </executions>
              </plugin>
        </plugins>
     </build>
</project>

Executing mvn package against this pom doesn't do anything. The output for the goal execution was empty.

Alt 1: Tried the following command. This copied the javadoc jars only and not the binary jars and sources jars of the dependencies.

mvn dependency:copy-dependencies@copy-dependencies
[INFO] Scanning for projects...
[INFO]
[INFO] ------------< gq.jetstream:maven-download-sources-javadocs >------------
[INFO] Building maven-download-sources-javadocs 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:3.3.0:copy-dependencies (copy-dependencies) @ maven-download-sources-javadocs ---
[INFO] Copying spring-core-5.2.22.RELEASE-javadoc.jar to C:\projects\code\maven-download-sources-javadocs\target\dependency-jars\spring-core-5.2.22.RELEASE-javadoc.jar
[INFO] Copying spring-jcl-5.2.22.RELEASE-javadoc.jar to C:\projects\code\maven-download-sources-javadocs\target\dependency-jars\spring-jcl-5.2.22.RELEASE-javadoc.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  1.846 s
[INFO] Finished at: 2022-06-22T02:09:55+01:00
[INFO] ------------------------------------------------------------------------