How does Maven depends on Plexus components?

plexus consists of a myriad of components

component	latest version	comments
`plexus-utils`		extensively used in core, every plugin, Modello and generated code, ...
`plexus-classworlds`
`plexus-containers`
`plexus-container-default`		replaced in Maven 3 by guice + sisu + sisu-plexus
`plexus-component-metadata`
`plexus-component-annotations`
`plexus-component-javadoc`
`plexus-components`
`plexus-archiver`
`plexus-cli`
`plexus-compiler`
`plexus-digest`
`plexus-i18n`
`plexus-interactivity`
`plexus-interpolation`
`plexus-io`
`plexus-resources`
`plexus-swizzle`
`plexus-velocity`

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