databene commons
is an open source Java library. It provides Java core library extensions:
basic utility classes that are not provided by the JDK libraries,
definitions and implementations for many common concepts (Accessor, Mutator, Comparator, Converter, Iterator, Tree, Visitor, TreeIterator, Validator) and
implementations of some of these concepts for JavaBeans and files (BeanComparator, PropertyAccessor, PropertyMutator, FileTreeModel)