**  Notice

  * after model interpolation, <<<$\{...\}>>> content can remain in the model that will be evaluated later
  when setting plugin parameters. This happens in particular with <<<settings.*>>> values for
  {{{../maven-settings/settings.html}Settings Model}},

  * encoding configuration have been defined as POM properties looking like POM content but not added to POM model to maintain
  compatibility with previous Maven versions:

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    /**
     * Method interpolatedTrimmed.
     *
     * @param value a value object.
     * @param context a context object.
     * @return String
     */
    private String interpolatedTrimmed(String value, String context) {
        return getTrimmedValue(contentTransformer.transform(value, context));
    } //-- String interpolatedTrimmed(String, String)

    /**
     * Method nextTag.
     *

        if (source == null) {
            return target;
        }
        Map<Object, Object> context = new HashMap<>();
        if (hints != null) {
            context.putAll(hints);
        }
        return merge${root.name}(target, source, sourceDominant, context);
    }

#foreach ( $class in $model.allClasses )
  #if ( $class.name != "InputSource" && $class.name != "InputLocation" )

    /**
     * Method interpolatedTrimmed.
     *
     * @param value a value object.
     * @param context a context object.
     * @return String
     */
    private String interpolatedTrimmed(String value, String context) {
        return getTrimmedValue(contentTransformer.transform(value, context));
    } //-- String interpolatedTrimmed(String, String)

    /**
     * Method nextTag.
     *

- we also seem to have artifact information tangled inside the plugin model
- we have to deal with scripting implementations (groovy, beanshell, ruby)
- we need to deal with a shared context for plugins, like the guarded mojos
- we need to deal with plugins as core application logic which can also interact with plugins

* Along with this comes the testing strategies that make this work