THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Maven core provides Xpp3Dom objects to plugins, created by Modello's code generated from pom's model for configuration DOM fields: see ConfigurationContainer.getConfiguration().
Then it has to let Xpp3Dom leak for plugins to be able to cast these Objects to Xpp3Dom: , for them to tweak configuration: see http://maven.apache.org/ref/3.0.4/maven-core/xref/org/apache/maven/classrealm/DefaultClassRealmManager.html#196
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