JODB (Java Objects Database) is the open source object-oriented database somewhat similar to db4objects but entirely oriented for Java community and completely free for personal and commercial use. Performance, size and scalability are the cornerstones of this project. The database use soft reference based caches to effectively use available RAM and in the same time minimize footprint when memory is pricey. The queries are optimized to the minimal possible objects instantiations during the search so that garbage collector will have more time to 'rest' which is especially important for busy server applications (GC is still expensive and its unlikely to change in near future).The ultimate goal for this project is to reach enterprise level visibility and compete with folks like MySql or Oracle.