Eclipse Equinox

The original plug-in architecture in Eclipse was not dynamic.  Once loaded, it will stay in memory.  OSGi framework enables the dynamic behavior.  The merge of the these 2 technology create Equinox.

The Eclipse runtime that underpin WAS is now implemented as OSGi services.  WAS also implements its components in OSGi services.  Doing so enables WAS to add and change features dynamically