hibernate.cfg.xml mysteriously stopped loading after working well for 1 month. It was located in the class path root /WEB-INF/classes. tried resources, hibernate package, web root, WEB-INF. None worked except web root (of struts context). All other parts of the app work but its like hibernate does no know the classpath to find the config.

I can also fix this error by passing in a full file path:

File hConf = new File("C:\\Java\\....\\hibernate.cfg.xml");
sfTest = new Configuration().configure(hConf).buildSessionFactory();

But with either of these 'fixes' hibernate crashes when it can't find
some mapping classes. I also have to copy hibernate and associated
jars to Jboss..default/lib, which should not normally be required.

Hibernate version:2.1.7
Jboss 3.2 Tomcat 4.1 struts combo

Mapping documents:
na: not loading config, so mapping docs not relevant. Config:
<hibernate-configuration>
<session-factory>
<property name="connection.datasource">
java:/jdbc/MSSQLDS/spcm_mayne_demo
</property>
<property name="show_sql">true</property>
<property name="dialect">
net.sf.hibernate.dialect.SQLServerDialect
</property>
<!-- mapping files com/maynepharma/clopine/hibernate/ -->
<mapping resource="TestBloodHolding.hbm.xml" />
<mapping resource="TestBloodPathology.hbm.xml" />
<!-- <mapping resource="TestNcLipid.hbm"/> -->
<mapping resource="PatientPathology.hbm.xml" />
......
</session-factory>
</hibernate-configuration>


Code between sessionFactory.openSession() and session.close():

public class HibernateUtil
{

private static Log log = LogFactory.getLog(HibernateUtil.class);
private static final SessionFactory sessionFactory;
static
{
SessionFactory sfTest; // temp holding variable
try // Create the SessionFactory
{

sfTest = new Configuration().configure().buildSessionFactory();
}
catch (Throwable ex) // HibernateException
{

log.error("HibernateUtil.static{}: Initial buildSessionFactory() threw exeption:..", ex);
throw new ExceptionInInitializerError(ex);

}
// if no errors assign sf to static final variable.
sessionFactory = sfTest;
}

public static Session currentSession() throws HibernateException
{
Session hibSess = (Session) currentThread.get();
// Open a new Session, if this Thread has none yet
if (hibSess == null)
{
hibSess = sessionFactory.openSession();
currentThread.set(hibSess);
}
return hibSess;
}

public static void closeSession() throws HibernateException
{
Session hibSess = (Session) currentThread.get();
currentThread.set(null);

if (hibSess != null) { hibSess.close(); }
}
}



Full stack trace of any exception that occurs:
08:09:10,984 INFO [Environment] Hibernate 2.1.7
08:09:11,046 INFO [Environment] hibernate.properties not found
08:09:11,062 INFO [Environment] using CGLIB reflection optimizer
08:09:11,062 INFO [Environment] using JDK 1.4 java.sql.Timestamp handling
08:09:11,078 INFO [Configuration] configuring from resource: /hibernate.cfg.xml
08:09:11,078 INFO [Configuration] Configuration resource: /hibernate.cfg.xml
08:09:11,156 WARN [Configuration] /hibernate.cfg.xml not found
08:09:11,171 ERROR [HibernateUtil] HibernateUtil.static{}: Initial buildSessionFactory() threw exeption:..
net.sf.hibernate.HibernateException: /hibernate.cfg.xml not found
at net.sf.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:877)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:901)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:888)
at com.maynepharma.clopine.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:43)
at com.maynepharma.clopine.hibernate.dao.TestBloodPathologyDAO.<init>(TestBloodPathologyDAO.java:39)
at com.maynepharma.clopine.struts.PathologyTestAction.execute(PathologyTestAction.java:79)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:480)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:502)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
08:09:11,265 ERROR [Engine] StandardWrapperValve[action]: Servlet.service() for servlet action threw exception
javax.servlet.ServletException: Servlet execution threw an exception
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
08:09:11,265 ERROR [Engine] ----- Root Cause -----
java.lang.ExceptionInInitializerError
at com.maynepharma.clopine.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:59)
at com.maynepharma.clopine.hibernate.dao.TestBloodPathologyDAO.<init>(TestBloodPathologyDAO.java:39)
at com.maynepharma.clopine.struts.PathologyTestAction.execute(PathologyTestAction.java:79)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:480)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:502)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
Caused by: net.sf.hibernate.HibernateException: /hibernate.cfg.xml not found
at net.sf.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:877)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:901)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:888)
at com.maynepharma.clopine.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:43)
... 41 more


Name and version of the database you are using:
Microsoft SQL Server 7.00 - 7.00.1063 (Intel X86)

The generated SQL (show_sql=true):
config not yet loaded

Debug level Hibernate log excerpt:
see stack trace. after some config I am not sure if log4j was working: had to disable Jboss log4j.