JCROM (pronounced "Jack-rom") stands for Java Content Repository Object Mapper. It is a lightweight framework for mapping Java objects to/from a Java Content Repository (JCR). This is commonly called Object Content Mapping.
You can look at the documentation for more explanations.
JCROM 2.2.0 is released
This release includes:
Custom Field Converters, to customize the conversion from an entity attribute value to JCR property representation and conversely
JavaFX properties support, to map Java objects with JavaFX properties directly to/from a JCR repository