findByXXx problem
when i call findByFieldName(), my CMP throw this.
i don't know why? thank u.
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[Default] Received throwable with Message: Find failed
[Default] javax.ejb.FinderException: Find failed
[Default] at org.jboss.ejb.plugins.jaws.jdbc.JDBCFinderCommand.execute(JDB
CFinderCommand.java:105)
[Default]
[Default] at org.jboss.ejb.plugins.jaws.jdbc.JDBCFindEntitiesCommand.execu
te(JDBCFindEntitiesCommand.java:187)
[Default]
[Default] at org.jboss.ejb.plugins.jaws.JAWSPersistenceManager.findEntitie
s(JAWSPersistenceManager.java:144)
[Default]
[Default] at org.jboss.ejb.plugins.CMPPersistenceManager.findEntities(CMPP
ersistenceManager.java:305)
[Default]
[Default] at org.jboss.ejb.EntityContainer.find(EntityContainer.java:567)
[Default]
[Default] at java.lang.reflect.Method.invoke(Native Method)
[Default]
[Default] at org.jboss.ejb.EntityContainer$ContainerInterceptor.invokeHome
(EntityContainer.java:843)
[Default]
[Default] at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke
Home(EntitySynchronizationInterceptor.java:231)
[Default]
[Default] at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(En
tityInstanceInterceptor.java:154)
[Default]
[Default] at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(Entity
LockInterceptor.java:108)
[Default]
[Default] at org.jboss.ejb.plugins.TxInterceptorCMT.invokeNext(TxIntercept
orCMT.java:135)
[Default]
[Default] at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(Tx
InterceptorCMT.java:307)
[Default]
[Default] at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxIntercept
orCMT.java:86)
[Default]
[Default] at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(Security
Interceptor.java:103)
[Default]
[Default] at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogIntercepto
r.java:106)
[Default]
[Default] at org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java
:420)
[Default]
[Default] at org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invoke
Home(JRMPContainerInvoker.java:441)
[Default]
[Default] at org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invokeHome(Ho
meProxy.java:237)
[Default]
[Default] at org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomePr
oxy.java:182)