Finder exception problem

Question

I'm having a problem using EJB2.0, under JBoss using the IntelliJ IDEA as my IDE.
I'm getting a strange error when I try to login after making some changes to add a new enterprise java bean. I created the bean's Local and HomeLocal interfaces, abstract class project history bean, and added the entity and query tags to ejb-jar.xml deployment descriptor file. I have also added the table to the instance of the database on my home machine.
For some strange reason, when I now try to login I get a finder exception from the user.findByPrimaryKey. This is a database table/EJB that has beeen part of the application forever. I have used the debug faculty to check the line where this method is called and it does contain the correct value for the method argument. The appropriate record is in the table, and the database and code have been updated with all recent changes. Any suggestions on where I should go from here to debug this? Have I missed some necessary step as far as adding a new EKB is concerned? Here's the error message and stack trace:
19:57:14,312 ERROR [LogInterceptor] RuntimeException in method: public abstract lingonet.user.UserLocal lingonet.user.UserHomeLocal.findByPrimaryKey(java.lang.String) throws javax.ejb.FinderException:
java.lang.IllegalStateException: createBeanClassInstanceCommand == null
     at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.createBeanClassInstance(JDBCStoreManager.java:560)
     at org.jboss.ejb.plugins.CMPPersistenceManager.createBeanClassInstance(CMPPersistenceManager.java:124)
     at org.jboss.ejb.EntityContainer.createBeanClassInstance(EntityContainer.java:224)
     at org.jboss.ejb.plugins.AbstractInstancePool.get(AbstractInstancePool.java:146)
     at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterceptor.java:96)
     at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(EntityLockInterceptor.java:61)
     at org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome(EntityCreationInterceptor.java:28)
     at org.jboss.ejb.plugins.CallValidationInterceptor.invokeHome(CallValidationInterceptor.java:41)
     at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:109)
     at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:313)
     at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:126)
     at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:99)
     at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:121)
     at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
     at org.jboss.ejb.EntityContainer.internalInvokeHome(EntityContainer.java:508)
     at org.jboss.ejb.Container.invoke(Container.java:891)
     at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invokeHome(BaseLocalProxyFactory.java:342)
     at org.jboss.ejb.plugins.local.LocalHomeProxy.invoke(LocalHomeProxy.java:118)
     at $Proxy71.findByPrimaryKey(Unknown Source)
     at lingonet.beans.WebUserBean.login(WebUserBean.java:95)
     at lingonet.beans.WebUserBean.<init>(WebUserBean.java:78)
     at lingonet.LoginServlet.process(LoginServlet.java:40)
     at lingonet.LoginServlet.doGet(LoginServlet.java:29)
     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.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.invoke(CustomPrincipalValve.java:66)
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:150)
     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:619)

Answer 1

Hi
It's working on WLS6.0 SP2 very well.
Macsym
PenFriend <[email protected]> wrote:
Macsym,
this isa known issue Cr06867. As a workaround chamge the name of the
methods to not start with
a find.
macsym wrote:
I've tried to re-run it. In my
classpath=.;.\lib\weblogic_sp.jar;.\lib\weblogic.jar;
but the problem still here. I'v just changed examples under WLS totest it.
BTW I using WLS6.1 SP1.
Thanks any way.
Macsym
Rob Woollen <rob@trebor_nelloow.moc> wrote:
It looks like you need to re-run weblogic.ejbc. Also make sure that
your classes are only
in the ejb-jar file and not the server's classpath.
Finally, what version of WLS are you using? It shouldn't be throwing
an AssertionError for
this.
-- Rob
macsym wrote:
Hi
I met a very funny problem. when I try to deploy a entity BMP.(compilewas ok).
The bean have a method called findSubElements(this is not a findermethod). I
got the a exception:
weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ ejbFindXXXmethod
for 'findSubElements(java.lang.String,jav
a.lang.String,java.lang.String)' not found on class 'entity.XXXEntityBean_sgz73u_Impl'.
what should I do to fix that ?
Thanks for help.