Oracle has posted a beta of Berkeley DB Java Edition 3.3.50 on the Oracke Technology Network (registration required). This is a non-relational embedded database written in Java. The data is exposed through "a Java Collections-style interface, as well as a programmatic interface similar to the Berkeley DB API." This release is a "specialized version of Berkeley DB Java Edition tailored to operate on the Davlik JVM and Android environment provided by Google. These features will become formal features of Berkeley DB Java Edition in a future release."