After 20 months of effort, we're pleased to announce the release of JPOX 1.1.0, aka JDO2 "Reference Implementation". This is a fully-compliant implementation of the JDO2 (JSR243) specification, passing the JDO2 TCK. JDO2 provides a major improvement over JDO1 providing standardised O/R mapping, major JDOQL query enhancements, lifecycle listeners, attach/detach, fetch-group control, SQL querying, and much much more.
Being a JDO(2) implementation it can be used with Spring 1.2.x or 2.0.x using Springs orm modules. JPOX 1.1 comes with its own Spring plugin (JdoDialect) allowing finer coupling of the two packages.