I wander if it is right i post this issue here, however i still hope someone 
can help me work this out.

I just installed the JBoss Portal 2.0alpha;
App Server:4.0.0 &4.0.1
Database My Sql 4.1.8
J Connector:mysql-connector-java-3.1.6-bin.jar

installation 
Guide:http://www.jboss.org/wiki/Wiki.jsp?page=JBossPortal[http://www.jboss.org/wiki/Wiki.jsp?page=JBossPortal]

When i access "First forum" or "Second Forum"  it throws null poniter exception 
on webpage and I checked the server.log, it seems tell me:


2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.impl.Printer] 
org.jboss.portlet.forums.impl.ForumImpl{type=0, category=CategoryImpl#1, 
order=20, topicSize=0, status=0, forumWatch=uninitialized, lastPost=null, 
pruneEnable=true, postSize=0, pruneNext=0, description=Second description, 
name=Second forum, topics=uninitialized, ID=2}
2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.impl.Printer] 
org.jboss.portlet.forums.impl.CategoryImpl{title=Dummy demo category, order=1, 
forums=uninitialized, id=1}
2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.impl.SessionImpl] Dont need to 
execute flush
2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.hql.QueryTranslator] HQL: from 
org.jboss.portlet.forums.impl.TopicImpl as t where t.forum = :forumid and 
t.type <> :type order by t.lastPostDate desc
2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.hql.QueryTranslator] SQL: 
select topicimpl0_.jbp_id as x0_0_ from jbp_forums_topics topicimpl0_ where 
(topicimpl0_.jbp_forum_id=? )and(topicimpl0_.jbp_type<>? ) order by  
topicimpl0_.jbp_last_post_date desc
2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.impl.BatcherImpl] about to 
open: 0 open PreparedStatements, 0 open ResultSets
2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.SQL] select topicimpl0_.jbp_id 
as x0_0_ from jbp_forums_topics topicimpl0_ where (topicimpl0_.jbp_forum_id=? 
)and(topicimpl0_.jbp_type<>? ) order by  topicimpl0_.jbp_last_post_date desc 
limit ?
2005-02-01 17:56:05,687 DEBUG [net.sf.hibernate.impl.BatcherImpl] preparing 
statement
2005-02-01 17:56:05,707 DEBUG [net.sf.hibernate.util.JDBCExceptionReporter] SQL 
Exception
java.sql.SQLException: You have an error in your SQL syntax; check the manual 
that corresponds to your MySQL server version for the right syntax to use near 
'?' at line 1
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2851)
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1534)
        at 
com.mysql.jdbc.ServerPreparedStatement.serverPrepare(ServerPreparedStatement.java:1485)
        at 
com.mysql.jdbc.ServerPreparedStatement.(ServerPreparedStatement.java:151)
        at com.mysql.jdbc.Connection.prepareStatement(Connection.java:1309)
        at com.mysql.jdbc.Connection.prepareStatement(Connection.java:1281)
        at 
org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.prepareStatement(BaseWrapperManagedConnection.java:355)
        at 
org.jboss.resource.adapter.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:205)
        at 
net.sf.hibernate.impl.BatcherImpl.getPreparedStatement(BatcherImpl.java:257)
        at 
net.sf.hibernate.impl.BatcherImpl.getPreparedStatement(BatcherImpl.java:232)
        at 
net.sf.hibernate.impl.BatcherImpl.prepareQueryStatement(BatcherImpl.java:65)
        at net.sf.hibernate.loader.Loader.prepareQueryStatement(Loader.java:779)
        at 
net.sf.hibernate.hql.QueryTranslator.iterate(QueryTranslator.java:864)
        at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1609)
        at net.sf.hibernate.impl.QueryImpl.iterate(QueryImpl.java:27)
        at 
org.jboss.portlet.forums.impl.ForumsModuleImpl.findTopics(ForumsModuleImpl.java:331)
        at 
org.jboss.portlet.forums.impl.ForumsModuleImpl.findTopicsDesc(ForumsModuleImpl.java:381)
        at 
org.jboss.portlet.forums.ForumsPortlet.fillShowForumContext(ForumsPortlet.java:2197)
        at org.jboss.portlet.forums.ForumsPortlet.doView(ForumsPortlet.java:300)
        at org.jboss.portlet.JBossPortlet.doDispatch(JBossPortlet.java:169)
        at org.jboss.portlet.JBossPortlet.render(JBossPortlet.java:159)
        at org.jboss.portlet.JBossPortlet.render(JBossPortlet.java:233)
        at 
org.jboss.portal.portlet.invocation.DispatcherInterceptor.invokeRequest(DispatcherInterceptor.java:143)
        at 
org.jboss.portal.portlet.invocation.DispatcherInterceptor.invoke(DispatcherInterceptor.java:171)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.core.portlet.cms.CMSInterceptor.invoke(CMSInterceptor.java:78)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.portlet.invocation.PreferencesInterceptor.invoke(PreferencesInterceptor.java:93)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.server.invocation.component.ContextDispatcherInterceptor$InvokeNextCommand.execute(ContextDispatcherInterceptor.java:94)
        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 
org.jboss.portal.server.servlet.CommandServlet.doGet(CommandServlet.java:51)
        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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:704)
        at 
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:552)
        at 
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:510)
        at 
org.jboss.portal.server.invocation.component.ContextDispatcherInterceptor.invoke(ContextDispatcherInterceptor.java:58)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.core.invocation.AccessControlInterceptor.invoke(AccessControlInterceptor.java:125)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.server.invocation.component.ModeInterceptor.invoke(ModeInterceptor.java:37)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.core.invocation.ConstrainedWindowStateInterceptor.invoke(ConstrainedWindowStateInterceptor.java:51)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.server.invocation.component.ParametersInterceptor.invoke(ParametersInterceptor.java:70)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.server.invocation.component.CacheInterceptor.invoke(CacheInterceptor.java:74)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:239)
        at org.jboss.portal.server.Component.invoke(Component.java:127)
        at 
org.jboss.portal.server.invocation.portal.MainDispatcherInterceptor.invoke(MainDispatcherInterceptor.java:159)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.server.invocation.portal.ContentTypeInterceptor.invoke(ContentTypeInterceptor.java:33)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.core.invocation.ViewInterceptor.invoke(ViewInterceptor.java:58)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.core.invocation.UserContextInterceptor.invoke(UserContextInterceptor.java:90)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:214)
        at 
org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:239)
        at org.jboss.portal.server.PortalServer.invoke(PortalServer.java:195)
        at 
org.jboss.portal.server.servlet.AbstractMainServlet.invoke(AbstractMainServlet.java:58)
        at 
org.jboss.portal.core.servlet.CoreServlet.process(CoreServlet.java:201)
        at 
org.jboss.portal.core.servlet.CoreServlet.invoke(CoreServlet.java:101)
        at 
org.jboss.portal.server.servlet.AbstractMainServlet.doGet(AbstractMainServlet.java:53)
        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.jboss.portal.core.servlet.TransactionFilter$1.run(TransactionFilter.java:78)
        at 
org.jboss.portal.common.transaction.Demarcator.requiresNew(Demarcator.java:52)
        at 
org.jboss.portal.core.servlet.TransactionFilter.doFilter(TransactionFilter.java:74)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
        at 
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
        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.jboss.web.tomcat.security.CustomPrincipalValve.invoe(CustomPrincipalValve.java:66)
        at 
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
        at 
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
        at 
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
        at 
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
        at 
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:54)
        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.StandardHostValve.invoke(StandardHostValve.java:137)
        at 
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
        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:799)
        at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
        at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
        at java.lang.Thread.run(Thread.java:534)
2005-02-01 17:56:05,707 WARN  [net.sf.hibernate.util.JDBCExceptionReporter] SQL 
Error: 1064, SQLState: 42000
2005-02-01 17:56:05,717 ERROR [net.sf.hibernate.util.JDBCExceptionReporter] You 
have an error in your SQL syntax; check the manual that corresponds to your 
MySQL server version for the right syntax to use near '?' at line 1
2005-02-01 17:56:05,717 DEBUG [net.sf.hibernate.util.JDBCExceptionReporter] SQL 
Exception
java.sql.SQLException: You have an error in your SQL syntax; check the manual 
that corresponds to your MySQL server version for the right syntax to use near 
'?' at line 1
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2851)

Can someone help me work this out ?

View the original post : 
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3864535#3864535

Reply to the post : 
http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3864535


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