A free embeddable Java source interpreter with object scripting language
features that is written in Java. BeanShell can dynamically execute standard
Java syntax and extends Java syntax with common scripting conveniences such as
loose types, commands and method closures like those in Perl and JavaScript.
Since BeanShell is small and embeddable developers can call BeanShell from Java
applications to execute Java code dynamically at run-time or to provide
extensibility in applications. The BeanShell distribution requires Java version
1.3+, however it is backwards compatible with Java version 1.1.