Integration of Sharepoint and Java seems to be a tough thing to do. Having a look on the web there is not much info about it besides these posts about Sharepoint and Java.

http://derekjmiller.spaces.live.com/blog/cns!A77124B9D0EE317F!142.entry
http://derekjmiller.spaces.live.com/blog/cns!A77124B9D0EE317F!167.entry
http://knowledgeforward.wordpress.com/2007/07/31/integration-with-sharepoint-and-anything/

Having a look at the issue, probably it's because of Java's ABM stance - lousy SOAP support, as it needs AXIS libraries and poor tools support for Web Services (unlike Visual Studio which autogenerates code stubs out of ANY WSDL/SOAP almost by default be it Java or else).

http://www.craiget.com/2009/01/sharepoint-meet-php/

http://blogs.msdn.com/outlook/archive/2007/09/28/sharepoint-outlook-the-perfect-link.aspx

Decatec Outlook Sharepoint Connector

http://geekswithblogs.net/bloesgen/archive/2007/06/24/113418.aspx
http://blogs.msdn.com/ahamza/archive/2007/03/07/is-there-a-way-to-configure-one-send-port-to-send-a-message-to-a-document-library-based-on-a-parameter.aspx
http://blogs.technet.com/john_westworth/archive/2008/06/09/sharepoint-and-biztalk.aspx
http://weblogs.asp.net/wesleybakker/archive/2009/03/26/BizTalk-_2B00_-SharePoint_3A00_-1_2B00_1_3D00_3.aspx

http://blogs.msdn.com/southwestbp/archive/2008/10/28/sharepoint-integration-with-documentum.aspx

Very cool to get things like tasks as a live diagram in Visio

http://msdn2.microsoft.com/en-us/library/bb229690.aspx

http://blogs.msdn.com/maximeb/archive/2007/10/27/updated-visio-stencils-for-sharepoint-2007-site-structures-documentation-version-0-2.aspx

A new plugin is here to restore the functionality of older Excel

http://blogs.msdn.com/scaravajal/archive/2007/06/28/excel-2007-add-in-for-syncing-with-sharepoint.aspx

http://blogs.msdn.com/saptech/archive/2007/02/26/office-sharepoint-server-moss-integration-with-the-sap-stack-conference-slides.aspx

http://blogs.msdn.com/brittog/archive/2007/02/16/wht-you-get-with-office-2007.aspx

Con Access 2007 potete creare dei siti di Sharepoint 2007 oppure avere l'applicativo client Access 2007 con il backend di Sharepoint 2007.

All' apertura ci sono diversi templates di cui poter usufruire.

Selezionando il checkbox si creano le liste su Sharepoint che fanno da tabelle per Access 2007 sul PC in locale.

I'm in love with BDC, the universal data connector of MOSS 2007. Almost any datasource can be registered in Sharepoint and pretty much used as a "native" List. That's fine and dany as long as one uses pre-existing datasources.

What if would like to use BDC to generate tables to a new datasource like SQL Server?

Well, one can sort of extract the Lists to Access 2007 and then upgrade to SQL Server, but then some datatypes are lost in the transition. If there is one thing MOSS 2007 misses is the the possibility to "use" BDC to generate/map to a new table to a new DB. Lets' say a way to save/map a List in Sharepoint to a new table in SQL Server 2005. Sometimes the Sharepoint storage engine is perhaps too much, or metadata is not used, so that a simple SQL Server 2005 table would be more appropriate. Sometimes, like in my case, I'd want the storage engine to be SQL Server and Sharepoint to be the UI/Web Interface, to keep my data/relational model intact but without losing the special "columns" datatypes of MOSS.

Con Access 2007 si possono creare, modificare e leggere le liste di Sharepoint 2007 come se fossero tabelle native

http://blogs.msdn.com/clintcovington/archive/2007/01/18/ua-articles-on-sharepoint-integration.aspx

Sharepoint 2007 as backend to Access 2007

http://blogs.msdn.com/thirdoffive/archive/2006/09/19/698707.aspx

http://dotnetjunkies.com/WebLog/stefandemetz/archive/2006/09/16/Relational_Sharepoint.aspx

Sharepoint 2007 + Windows Mobile nella PA 

http://www.microsoft.com/casestudies/casestudy.aspx?casestudyid=200399