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POJava is a very light-weight utility library providing a practical assortment of data transformations. Its goal is to provide a foundation for POJO-based handling of data with no dependencies and no alterations required of the POJO itself. The base jar, POJava, provides common functions for string and binary conversions, such as compression, encryption, and encoding, and other tools for accessing, validating, and altering data such as date manipulation, reflection, external process invocation, and language binding.

A key strength of the base POJava library is its handling of dates and times. Its immutable DateTime object parses dates from text in multiple languages and formats down to nanosecond precision. It can perform date math, such as truncating to a whole time period, or adding a period to a date, or performing multiple in-line operations. It's really easy to use.

The POJava Persistence jar layers additional support for database-to-object (ORM) and object-to-xml exchanges in both directions. It depends only on POJava, so it also has a very small footprint.