How to provide a list of objects as CLI parameter to Jib?

Question

I have multiple Java Applications that depend on the directory config/ at the root of each repository. When building images of these apps with jib-maven-plugin, Jib does not copy this directory by default.

Specifying extraDirectories works when configuring via pom.xml as <from> and <into> can be set:

      <plugin>
        <groupId>com.google.cloud.tools</groupId>
        <artifactId>jib-maven-plugin</artifactId>
        <configuration>
          <extraDirectories>
            <paths>
              <path>
                <from>./config</from>
                <into>/config</into>
              </path>
            </paths>
          </extraDirectories>
        </configuration>
      </plugin>

Though I'd rather configure Jib via CLI parameters.

-Djib.extraDirectories.paths=./config works for copying all the contents of config/ to the root of the container. Though I need the files to be copied to /config/*.

This brings me to the question whether it is possible to provide a list of objects to -Djib.extraDirectories.paths? As in -Djib.extraDirectories.paths={from=./config,into=/config},{from=/another/dir,into=/dir/in/image} (whatever the right syntax would be?).