有關Hibernate的一個小問題?

Question

我在寫Web登錄葉面查詢數據庫時出現以下錯誤(我用的DB是oracle9i)﹐不知那里入手解決這個問題﹐請各位大哥幫忙.
Hibernate: select personbean0_.ID as ID, personbean0_.USER_NAME as USER2_0_, personbean0_.PASSWORD as PASSWORD0_ from C_WEB_USER personbean0_ where personbean0_.USER_NAME='chenxi' and personbean0_.PASSWORD='chenxi'
10:16:01,312  WARN JDBCExceptionReporter:71 - SQL Error: 600, SQLState: 60000
10:16:01,312 ERROR JDBCExceptionReporter:72 - ORA-00600: 內部錯誤代碼, 參數: [ttcgcshnd-1], [0], [], [], [], [], [], []org.hibernate.exception.GenericJDBCException: could not execute query
at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92)
at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.doList(Loader.java:1596)
at org.hibernate.loader.Loader.list(Loader.java:1577)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:395)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:271)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:844)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
at hello.Service.authenticate(Service.java:27)
at hello.HelloAction.execute(HelloAction.java:52)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:462)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:267)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1187)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:451)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
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.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:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.SQLException: ORA-00600: 內部錯誤代碼, 參數: [ttcgcshnd-1], [0], [], [], [], [], [], [] at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:542)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1311)
at oracle.jdbc.ttc7.TTC7Protocol.fetch(TTC7Protocol.java:797)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:1608)
at oracle.jdbc.driver.OracleStatement.doExecute(OracleStatement.java:1758)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1805)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:322)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:280)
at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:120)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1272)
at org.hibernate.loader.Loader.doQuery(Loader.java:391)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218)
at org.hibernate.loader.Loader.doList(Loader.java:1593)
... 27 more
java.util.AbstractList$Itr@4adb34
10:16:01,375  WARN RequestProcessor:550 - Unhandled Exception thrown: class java.lang.NullPointerException
10:16:01,406 ERROR [action]:253 - Servlet.service() for servlet action threw exception
java.lang.NullPointerException
at hello.HelloAction.execute(HelloAction.java:53)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:462)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:267)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1187)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:451)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
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:595)
10:26:14,296  WARN ConnectionManager:376 - unclosed connection, forgot to call close() on your session?