Exception in DBCPConnectionProvider

Hi, Yesterday I updated my XWiki from SVN. I have a project working on it, and with the latest XWiki, I can't launch my project. It seems that there's an issue with my database because I can launch the standalone XWiki, it works fine. But as soon as I plug it to my database, I got the following exception. (XWiki.XWikiPreferences is just an exemple, I got this exception for each document) This is very odd because my database was working fine until now ! In the source code, it sounds like my "BasicDataSource ds" in DBCPConnectionProvider.java is null. So I guess it comes from my configuration, then i tried to check my hibernate.cfg.xml, but all seems fine. Does anyone has an idea ? Arno. The exception : com.xpn.xwiki.XWikiException: Error number 3202 in 3: Exception while reading document XWiki.XWikiPreferences Wrapped Exception: null at com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore.java:452) at com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:160) at com.xpn.xwiki.XWiki.getDocument(XWiki.java:956) at com.xpn.xwiki.XWiki.getDocument(XWiki.java:990) at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2233) at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) at com.xpn.xwiki.XWiki.<init>(XWiki.java:567) at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:282) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:96) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:619) Wrapped Exception: java.lang.NullPointerException at com.xpn.xwiki.store.DBCPConnectionProvider.getConnection(DBCPConnectionProvider.java:209) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:360) at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:122) at com.xpn.xwiki.store.XWikiHibernateBaseStore.getRealConnection(XWikiHibernateBaseStore.java:665) at com.xpn.xwiki.store.XWikiHibernateBaseStore.beginTransaction(XWikiHibernateBaseStore.java:545) at com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore.java:352) at com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:160) at com.xpn.xwiki.XWiki.getDocument(XWiki.java:956) at com.xpn.xwiki.XWiki.getDocument(XWiki.java:990) at com.xpn.xwiki.XWiki.getPrefsClass(XWiki.java:2233) at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675) at com.xpn.xwiki.XWiki.<init>(XWiki.java:567) at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:282) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:96) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:619)