jCOLIBRI takes advantage of the possibilities offered by the newest versions of the Java language. The most important features is the representation of cases as Java beans. A Java bean is any class that has a get() and set() method for each public attribute. Its modification and management can be performed automatically using a Java technology called Introspection (that is completely transparent for the developer). With this change, developers can design their cases as normal Java classes, choosing the most natural design. This simplifies programming and debugging the CBR applications, and the configuration files became simpler because most of the metadata of the cases can be extracted using Introspection. Java beans also offer automatically generated user interfaces that allow the modification of their attributes and automatic persistence into data bases and XML files. It is important to note that every Java web application uses Java beans as a base technology, so the development of web interfaces is very straightforward. The persistence of cases is going to be managed by the Hibernate package. Hibernate is a Java Data Objects (JDO) implementation, so it can automatically store Java beans in a relational data base, using one or more tables. It also supports XML files as storage media and has many tools that aid the persistence mapping. Hibernate offers a standard and well documented query language that could be used to express the CBR queries in a short future. Java Beans and Hibernate are core technologies in the Java Enterprise Edition platform that is oriented to business applications. Using these technologies in jCOLIBRI we guarantee the future development of commercial CBR applications using this framework.