I do not believe that there are any Sun products of this nature -- at least none that I know of. However, there are open source Java projects. I've moved this to Other Open Source Projects for further discussion.
Hi there are more than one indexing/searching solution in java , in open source , you can see a complete list of them in : http://www.java-source.net/open-source/search-engines most of this search engine (crawlers )are based on Lucene and apche project.