Hi, I'm getting this strange exception whenever I use the SessionFactory. Does anyone have a clue as to why this occurs? I'm not doing anything complicated, just mostly session.load().

Hibernate version: 2.1.6

Name and version of the database you are using: PostgreSQL 7.3.5

Full stack trace of any exception that occurs:

This method is not yet implemented.
at org.postgresql.Driver.notImplemented(Driver.java:388)
at org.postgresql.jdbc3.AbstractJdbc3DatabaseMetaData.supportsGetGeneratedKeys(AbstractJdbc3DatabaseMetaData.java:69)
at com.mchange.v2.c3p0.impl.NewProxyDatabaseMetaData.supportsGetGeneratedKeys(NewProxyDatabaseMetaData.java:3998)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:79)
at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1132)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:766)
at glovesbybruno.util.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:13)
at glovesbybruno.action.HomeAction.execute(HomeAction.java:37)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:793)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:702)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:571)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)
at java.lang.Thread.run(Thread.java:534)
Rolling back potentially unresolved txn...

c3p0 properties in hibernate.cfg.xml:

<property name="c3p0.acquire_increment">1</property>
<property name="c3p0.max_size">100</property>
<property name="c3p0.min_size">10</property>
<property name="c3p0.initial_pool_size">3</property>
<property name="c3p0.min_pool_size">1</property>
<property name="c3p0.max_pool_size">100</property>
<property name="c3p0.idle_test_period">0</property>
<property name="c3p0.timeout">120</property>
<property name="c3p0.max_statements">1024</property>
<property name="c3p0.property_cycle">300</property>
<property name="c3p0.acquire_increment">1</property>
<property name="c3p0.test_connection_on_checkout">false</property>
<property name="c3p0.auto_commit_on_close">false</property>
<property name="c3p0.force_ignore_unresolved_transactions">false</property>
<property name="c3p0.num_helper_threads">3</property>
<property name="c3p0.factory_class_location">null</property>