Re: IllegalAccess When Setting Field

Wed, 07 Dec 2005 07:32:13 -0800 

Armin,

My ojb version is 1.0.3.

-chris worley


Armin,
Here is the complete output at the time the service is invoked. For this I have set all proxies back to dynamic in the class descriptors. If I comment out the reference to the contactMech the party reference gets populated just fine. I am not sure what the deail is with the ContactMech.
[org.apache.ojb.broker.accesslayer.ConnectionFactoryPooledImpl] DEBUG: createPool was called [org.apache.ojb.broker.accesslayer.ConnectionFactoryPooledImpl] DEBUG: makeObject called [org.apache.ojb.broker.accesslayer.StatementManager] DEBUG: closeResources was called [org.apache.ojb.broker.core.QueryReferenceBroker] DEBUG: getCollectionByQuery (class org.apache.ojb.broker.util.collections.RemovalAwareCollection, class net.enterprise.common.model.party.CPartyRole, QueryByCriteria from class net.enterprise.common.model.party.CPartyRole where [partyId = 181]) [org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement$TableAlias] DEBUG: TableAlias(): using hints ? false [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Materialisation of object is finished, push 1objects to cache [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Push to cache: net.enterprise.common.model.party.CParty{181} [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache [org.apache.ojb.broker.accesslayer.StatementManager] DEBUG: closeResources was called [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Materialisation of object is finished, push 1objects to cache [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Push to cache: net.enterprise.common.model.party.CPartyGroup{181} [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache [org.apache.ojb.broker.core.QueryReferenceBroker] DEBUG: getCollectionByQuery (class org.apache.ojb.broker.util.collections.RemovalAwareCollection, class net.enterprise.common.model.party.CPartyContactMech, QueryByCriteria from class net.enterprise.common.model.party.CPartyContactMech where [partyId = 181, [partyId = 181]]) [org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement$TableAlias] DEBUG: TableAlias(): using hints ? false [org.apache.ojb.broker.core.PersistenceBrokerFactoryBaseImpl] INFO: Create new PB instance for PBKey org.apache.ojb.broker.PBKey: jcdAlias=enterprise, user=enterprise, password=*****, already created persistence broker instances: 1 [org.apache.ojb.broker.cache.ObjectCacheFactory] INFO: Start creating new ObjectCache instance [org.apache.ojb.broker.cache.ObjectCacheFactory] INFO: Instantiate new org.apache.ojb.broker.cache.CacheDistributor for PB instance [EMAIL PROTECTED] [org.apache.ojb.broker.cache.ObjectCacheFactory] INFO: New ObjectCache instance was created [org.apache.ojb.broker.util.sequence.SequenceManagerFactory] DEBUG: create new sequence manager for broker [EMAIL PROTECTED] [org.apache.ojb.broker.util.sequence.SequenceManagerFactory] DEBUG: Jdbc-Connection-Descriptor 'enterprise' use sequence manager: class org.apache.ojb.broker.util.sequence.SequenceManagerHighLowImpl [org.apache.ojb.broker.accesslayer.ConnectionFactoryPooledImpl] DEBUG: makeObject called [org.apache.ojb.broker.accesslayer.StatementManager] DEBUG: closeResources was called [org.apache.ojb.broker.accesslayer.StatementManager] DEBUG: closeResources was called 
[PersistentField] ERROR: while set field:
[try to set 'object value' in 'target object'
target obj class: net.enterprise.common.model.party.CPartyContactMech
target field name: contactMech
target field type: class net.enterprise.common.model.contact.CContactMech
target field declared in: net.enterprise.common.model.party.CPartyContactMech 
object value class: $Proxy0
object value: [EMAIL PROTECTED]
]
[org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache [org.apache.ojb.broker.cache.MaterializationCache] DEBUG: Clear materialization cache org.apache.ojb.broker.PersistenceBrokerException: Error invoking method afterLookup at org.apache.ojb.broker.core.proxy.IndirectionHandlerDefaultImpl.invoke(Unknown Source) 
   at $Proxy0.afterLookup(Unknown Source)
at org.apache.ojb.broker.core.PersistenceBrokerAbstractImpl.performCallBack(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerAbstractImpl.fireBrokerEvent(Unknown Source) 
   at org.apache.ojb.broker.accesslayer.RsIterator.next(Unknown Source)
at org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(Unknown Source) at net.enterprise.server.service.contact.CFindPartyContactMechByPartyIdService.doExecute(CFindPartyContactMechByPartyIdService.java:43) 
   at net.enterprise.common.service.CService.execute(CService.java:45)
at net.enterprise.common.service.CServiceExecutor.execute(CServiceExecutor.java:66) at net.enterprise.common.service.CLocalDispatcher.execute(CLocalDispatcher.java:41) at net.enterprise.server.service.contact.CFindContactService.doExecute(CFindContactService.java:48) 
   at net.enterprise.common.service.CService.execute(CService.java:45)
at net.enterprise.common.service.CServiceExecutor.execute(CServiceExecutor.java:66) at net.enterprise.server.service.CServiceProcess.run(CServiceProcess.java:53) Caused by: org.apache.ojb.broker.PersistenceBrokerException: org.apache.ojb.broker.metadata.MetadataException: IllegalAccess error setting field:contactMech in object:net.enterprise.common.model.party.CPartyContactMech at org.apache.ojb.broker.core.proxy.IndirectionHandlerDefaultImpl.materializeSubject(Unknown Source) at org.apache.ojb.broker.core.proxy.IndirectionHandlerDefaultImpl.getRealSubject(Unknown Source) 
   ... 19 more
Caused by: org.apache.ojb.broker.metadata.MetadataException: IllegalAccess error setting field:contactMech in object:net.enterprise.common.model.party.CPartyContactMech at org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.setValueFor(Unknown Source) at org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImplNew.set(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.retrieveReference(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.retrieveReferences(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.getDBObject(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.doGetObjectByIdentity(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.getObjectByIdentity(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByIdentity(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByIdentity(Unknown Source) 
   ... 21 more
Caused by: java.lang.IllegalArgumentException
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:63) 
   at java.lang.reflect.Field.set(Field.java:519)
   ... 30 more


Hi Chris,
which version of OJB do you use? Normally OJB will generate a more detailed error log when field setting fails.
Caused by: org.apache.ojb.broker.metadata.MetadataException: IllegalAccess error setting field:contactMech in object:net.enterprise.common.model.party.CPartyContactMech 

Did you post the whole stack trace with complete error log?

regards,
Armin

Chris Worley wrote:
I have now removed proxy="dynamic" from all my class descriptors and I no longer get the exception.
After doing some testing. I am finding that sometimes I get the exception, sometimes it works and sometimes the contactMech is populated with an instance of CPhoneNumber (which is what i want) and sometimes it just populates with CContactMech. CPhoneNumber extends CContactMech. I have modified the code on the server to use class hints.
The only pattern I am finding is that I can retreive the PartyContactMech without an exception if the obejct was created during the life of the server process. If i start the server and retreive one that was not created during the life of the process then I get the exception. Sounds like it works fine when the objects are cached, but thats just an assumption. 

I also stopped using a the dynamic proxy for PartyContactMech.

-chris worley
I have a similar error when using. I am able to set fields with other objects when retreiving them from the db. This particular class is giving me some problems.
PersistentFieldClass=org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldIntrospectorImplNew
org.apache.ojb.broker.PersistenceBrokerException: Error invoking method afterLookup at org.apache.ojb.broker.core.proxy.IndirectionHandlerDefaultImpl.invoke(Unknown Source) 
   at $Proxy0.afterLookup(Unknown Source)
at org.apache.ojb.broker.core.PersistenceBrokerAbstractImpl.performCallBack(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerAbstractImpl.fireBrokerEvent(Unknown Source) at org.apache.ojb.broker.accesslayer.RsIterator.next(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(Unknown Source) at net.enterprise.server.service.contact.CFindPartyContactMechByPartyIdService.doExecute(CFindPartyContactMechByPartyIdService.java:31) at net.enterprise.common.service.CService.execute(CService.java:45) at net.enterprise.common.service.CServiceExecutor.execute(CServiceExecutor.java:66) at net.enterprise.common.service.CLocalDispatcher.execute(CLocalDispatcher.java:41) at net.enterprise.server.service.contact.CFindContactService.doExecute(CFindContactService.java:48) at net.enterprise.common.service.CService.execute(CService.java:45) at net.enterprise.common.service.CServiceExecutor.execute(CServiceExecutor.java:66) at net.enterprise.server.service.CServiceProcess.run(CServiceProcess.java:53) Caused by: org.apache.ojb.broker.PersistenceBrokerException: org.apache.ojb.broker.metadata.MetadataException: Error invoking method:setContactMech in object:net.enterprise.common.model.party.CPartyContactMech at org.apache.ojb.broker.core.proxy.IndirectionHandlerDefaultImpl.materializeSubject(Unknown Source) at org.apache.ojb.broker.core.proxy.IndirectionHandlerDefaultImpl.getRealSubject(Unknown Source) 
   ... 19 more
Caused by: org.apache.ojb.broker.metadata.MetadataException: Error invoking method:setContactMech in object:net.enterprise.common.model.party.CPartyContactMech at org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldIntrospectorImplNew.setValueFor(Unknown Source) at org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldIntrospectorImplNew.set(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.retrieveReference(Unknown Source) at org.apache.ojb.broker.core.QueryReferenceBroker.retrieveReferences(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.getDBObject(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.doGetObjectByIdentity(Unknown Source) at org.apache.ojb.broker.core.PersistenceBrokerImpl.getObjectByIdentity(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByIdentity(Unknown Source) at org.apache.ojb.broker.core.DelegatingPersistenceBroker.getObjectByIdentity(Unknown Source) 
   ... 21 more
Caused by: java.lang.IllegalArgumentException: argument type mismatch
   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)
   ... 30 more
I get and IllegalAccess exception when ojb tries to populate a reference to another object. I have no problems storing the object. The exception is attached and below is my code and mapping. 

----- Code --------
Integer partyId = (Integer) getParameter("partyId");
Criteria crit = new Criteria();
crit.addEqualTo("partyId", partyId);
Query query = QueryFactory.newQuery(CPartyContactMech.class, crit);
setParameter("partyContactMechs", getBroker().getCollectionByQuery(query)); 

---- Exception ---------
Caused by: org.apache.ojb.broker.PersistenceBrokerException: org.apache.ojb.broker.metadata.MetadataException: IllegalAccess error setting field:contactMech in object:net.enterprise.common.model.party.CPartyContactMech 

---- Mapping ------
<!-- Contact Mech -->

<class-descriptor
       class="net.enterprise.common.model.contact.CContactMech"
       proxy="dynamic"
       table="contact_mech"
   >
     <field-descriptor
           name="contactMechId"
           column="contact_mech_id"
           jdbc-type="integer"
           primarykey="true"
           autoincrement="true"
       />
     <field-descriptor
           name="contactMechTypeId"
           column="contact_mech_type_id"
           jdbc-type="varchar"
       />
  </class-descriptor>

<!-- Party Contact Mech -->

<class-descriptor
       class="net.enterprise.common.model.party.CPartyContactMech"
       proxy="dynamic"
       table="party_contact_mech"
   >
     <field-descriptor
           name="partyContactMechId"
           column="party_contact_mech_id"
           jdbc-type="integer"
           primarykey="true"
           autoincrement="true"
       />
     <field-descriptor
           name="partyId"
           column="party_id"
           jdbc-type="integer"
       />
         <field-descriptor
           name="contactMechId"
           column="contact_mech_id"
           jdbc-type="integer"
       />
         <field-descriptor
           name="fromDate"
           column="from_date"
           jdbc-type="timestamp"
       />
         <field-descriptor
           name="thruDate"
           column="thru_date"
           jdbc-type="timestamp"
       />
         <field-descriptor
           name="contactMechPurposeId"
           column="contact_mech_purpose_id"
           jdbc-type="integer"
       />
         <reference-descriptor
           name="contactMech"
class-ref="net.enterprise.common.model.contact.CContactMech" 
           auto-retreive="true"
           auto-update="true"
       >
       <foreignkey field-ref="contactMechId"/>
   </reference-descriptor>
         <reference-descriptor
           name="party"
           class-ref="net.enterprise.common.model.party.CParty"
           auto-retreive="true"
           auto-update="true"
       >
       <foreignkey field-ref="partyId"/>
   </reference-descriptor>
      </class-descriptor>
         thanks

-chris worley
------------------------------------------------------------------------
--------------------------------------------------------------------- 
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]




---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]




---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]




---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]




---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]




---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]




---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

Reply via email to