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Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 2 posts ] 
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 Post subject: NullPointerException avec Hibernate 3.0
PostPosted: Mon Sep 05, 2005 10:29 am 
Newbie

Joined: Mon Sep 05, 2005 10:21 am
Posts: 1
Bonjour,

je suis nouveau sur Hibernate. Je développe actuellement une petite application web déployée sur un serveur JBoss 4.0.12 et utilisant Hibernate 3.0 et Struts 1.2.7.

La création des tables se passe très bien mais lorsque j'essaye de récupérer des données ou d'insérer un élément, j'ai le message suivant qui apparait :

Quote:
java.lang.NullPointerException
at com.mysql.jdbc.PreparedStatement.asSql(PreparedStatement.java:562)
at com.mysql.jdbc.PreparedStatement.asSql(PreparedStatement.java:504)
at com.mysql.jdbc.PreparedStatement.toString(PreparedStatement.java:3228)
at java.lang.String.valueOf(String.java:2577)
at java.lang.StringBuffer.append(StringBuffer.java:220)
at com.mysql.jdbc.trace.Tracer.printParameters(Tracer.aj:240)
at com.mysql.jdbc.trace.Tracer.printEntering(Tracer.aj:167)
at com.mysql.jdbc.trace.Tracer.entry(Tracer.aj:126)
at com.mysql.jdbc.trace.Tracer.ajc$before$com_mysql_jdbc_trace_Tracer$1$f51c62b8(Tracer.aj:45)
at com.mysql.jdbc.Connection.registerStatement(Connection.java)
at com.mysql.jdbc.Statement.<init>(Statement.java:190)
at com.mysql.jdbc.PreparedStatement.<init>(PreparedStatement.java:429)
at com.mysql.jdbc.Connection.clientPrepareStatement(Connection.java:2063)
at com.mysql.jdbc.Connection.clientPrepareStatement(Connection.java:1996)
at com.mysql.jdbc.Connection.prepareStatement(Connection.java:4266)
at com.mysql.jdbc.Connection.prepareStatement(Connection.java:4185)
at org.hibernate.id.IncrementGenerator.getNext(IncrementGenerator.java:86)
at org.hibernate.id.IncrementGenerator.generate(IncrementGenerator.java:45)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:85)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:481)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:476)
at com.audiomanager.sql.EditeurService.insertEditeur(Unknown Source)
at com.audiomanager.action.EditeurManagerAction.execute(Unknown Source)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
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.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
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.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)


J'ai essayé de faire la même chose mais sans utiliser un serveur Web et cà marche normalement. Je ne sais plus quoi faire.

Quelqu'un aurait-il une idée ?? :(


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 Post subject:
PostPosted: Tue Sep 06, 2005 7:11 am 
Hibernate Team
Hibernate Team

Joined: Sun Sep 14, 2003 3:54 am
Posts: 7256
Location: Paris, France
Regarde dans le code MySQl, dans tous les cas, ils ne devraient pas jeter de NPE, c'est un bug chez eux.

_________________
Emmanuel


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