Dasobert is a Java DAS client library. It is based on BioJava. Currently it supports the DAS/1 spec and there are some bits in there that will provide support for DAS/2 as well. The different bits and pieces are used by SPICE and the DAS registration server.
It provides a simple library that provides DAS support. Currently Dasobert relies on BioJava for the data model and on the Xerxes XML parser.
The Dasobert DAS client library source is available under the LGPL from http://www.derkholm.net/svn/repos/dasobert/trunk/