| CommonsConfigurationWrapper | This class wraps Apache Commons Configuration v2 objects. |
| CoreProperties | Utility class to handle (parse and get, build and save) some properties of the core. |
| DevPluginClassname | These objects represent classnames of plugins that are currently being developed. |
| PropertyDefinition | |
| PropertyDefinitionManager | A simple property definitions manager (PDM). |
| PropertyManager | JEB implementation of a property manager. |
| PropertyTypeBoolean | Boolean property type. |
| PropertyTypeInteger | Integer property type with constraints. |
| PropertyTypePath | |
| PropertyTypeString |