Hi,

I am using Hibernate3. What I noticed is if I throw new HibernateException(e) where "e" is some preexisting exception, then Tomcat will not display "e" as the underlying cause of the exception. This makes it very difficult to diagnose problems.

If, however, I wrap "e" in any other standard Java exception, it works properly. I can't seem to figure out what is wrong with HibernateException. I'd like to file a bug report if possible.

Thanks,
Gili

What are you/tomcat calling to display the exception? getCause()?

It should work - the exception model is based on the apache nestable exception model - so what you see when calling printing the trace may be different based on the version of your vm.

What java vm are you using?
What do you see when if you do:

Hi,

I believe the problem is not in getCause() but rather in toString() or something. I know for a fact that invoking getCause().printStackTrace() manually produces the correct output but if Tomcat is allowed to handle it the cause is never displayed. It might have something to do with HibernateException.toString() or other methods that indirectly contain the cause string.

I get the following stack-traces from your test-case:

org.hibernate.HibernateException: java.lang.IllegalStateException: test
at com.be.desktopbeautifier.servlet.InitDB.processRequest(InitDB.java:48)
at com.be.desktopbeautifier.servlet.DefaultServlet.processRequest(DefaultServlet.java:87)
at com.be.desktopbeautifier.servlet.DefaultServlet.doGet(DefaultServlet.java:247)
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 org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)
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:214)
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:825)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.IllegalStateException: test
... 22 more



java.lang.IllegalStateException: test
at com.be.desktopbeautifier.servlet.InitDB.processRequest(InitDB.java:50)
at com.be.desktopbeautifier.servlet.DefaultServlet.processRequest(DefaultServlet.java:87)
at com.be.desktopbeautifier.servlet.DefaultServlet.doGet(DefaultServlet.java:247)
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 org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)
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:214)
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:825)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)

and toString()?

Last time I checked, empty string. Which seems wrong to me.

Gili