| Name | Package | Description |
| Buffer | org.apache.commons.collections | Defines a collection that allows objects to be removed in some well-defined order. |
| Converter | org.apache.commons.beanutils | General purpose data type converter that can be registered and used
within the BeanUtils package to manage the conversion of objects from
one type to another. |
| DynaBean | org.apache.commons.beanutils | A DynaBean is a Java object that supports properties
whose names and data types, as well as values, may be dynamically modified. |
| DynaClass | org.apache.commons.beanutils | A DynaClass is a simulation of the functionality of
java.lang.Class for classes implementing the
DynaBean interface. |
| LocaleConverter | org.apache.commons.beanutils.locale | General purpose locale-sensitive data type converter that can be registered and used
within the BeanUtils package to manage the conversion of objects from
one type to another. |
| MutableDynaClass | org.apache.commons.beanutils | A specialized extension to DynaClass that allows properties
to be added or removed dynamically. |