Oh, the file I mentioned in my last mail hasn't been attached.
Here is the screenshot:
[JDO] DEBUG: OjbStoreConnector.begin: connectionReadyForRelease=false
[org.apache.ojb.broker.accesslayer.RsIterator] ERROR: Error while iterate
ResultSet for query org.apache.ojb.broker.accesslayer.RsQueryObject[query:
Query from class JDOTest.Person where null, class descriptor:
JDOTest.Person]
Unable to build object instance (MAYBE you don't have a constructor
available):class JDOTest.Person
org.apache.ojb.broker.PersistenceBrokerException: Unable to build object
instance (MAYBE you don't have a constructor available):class JDOTest.Person
at
org.apache.ojb.broker.accesslayer.RowReaderDefaultImpl.buildWithReflection(R
owReaderDefaultImpl.java:239)
at
org.apache.ojb.broker.accesslayer.RowReaderDefaultImpl.readObjectFrom(RowRea
derDefaultImpl.java:115)
at
org.apache.ojb.broker.accesslayer.RsIterator.getObjectFromResultSet(RsIterat
or.java:463)
at
org.apache.ojb.broker.accesslayer.RsIterator.next(RsIterator.java:284)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(QueryRe
ferenceBroker.java:147)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(QueryRe
ferenceBroker.java:244)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(QueryRe
ferenceBroker.java:263)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Persis
tenceBrokerImpl.java:997)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(
DelegatingPersistenceBroker.java:322)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(
DelegatingPersistenceBroker.java:322)
at org.apache.ojb.jdori.sql.OjbExtent.<init>(OjbExtent.java:98)
at
org.apache.ojb.jdori.sql.OjbStoreManager.getExtent(OjbStoreManager.java:251)
at com.sun.jdori.common.PersistenceManagerImpl.getExtent(Unknown
Source)
at com.sun.jdori.common.query.QueryImpl.checkCandidates(Unknown
Source)
at com.sun.jdori.common.query.QueryImpl.execute(Unknown Source)
at JDOTest.TestJdo.run(TestJdo.java:52)
at JDOTest.TestJdo.main(TestJdo.java:39)
Caused by:
org.apache.ojb.broker.metadata.ClassNotPersistenceCapableException: (Could
not instantiate JDOTest.Person: Class
org.apache.ojb.broker.util.ConstructorHelper can not access a member of
class JDOTest.Person with modifiers "public")
at
org.apache.ojb.broker.util.ConstructorHelper.instantiate(ConstructorHelper.j
ava:162)
at
org.apache.ojb.broker.accesslayer.RowReaderDefaultImpl.buildWithReflection(R
owReaderDefaultImpl.java:235)
... 16 more
Caused by: java.lang.IllegalAccessException: Class
org.apache.ojb.broker.util.ConstructorHelper can not access a member of
class JDOTest.Person with modifiers "public"
at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:57)
at java.lang.reflect.Constructor.newInstance(Constructor.java:268)
at
org.apache.ojb.broker.util.ConstructorHelper.instantiate(ConstructorHelper.j
ava:158)
... 17 more
org.apache.ojb.broker.PersistenceBrokerException:
java.util.NoSuchElementException: Could not obtain next object: Unable to
build object instance (MAYBE you
don't have a constructor available):class JDOTest.Person
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(QueryRe
ferenceBroker.java:251)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(QueryRe
ferenceBroker.java:263)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Persis
tenceBrokerImpl.java:997)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(
DelegatingPersistenceBroker.java:322)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(
DelegatingPersistenceBroker.java:322)
at org.apache.ojb.jdori.sql.OjbExtent.<init>(OjbExtent.java:98)
at
org.apache.ojb.jdori.sql.OjbStoreManager.getExtent(OjbStoreManager.java:251)
at com.sun.jdori.common.PersistenceManagerImpl.getExtent(Unknown
Source)
at com.sun.jdori.common.query.QueryImpl.checkCandidates(Unknown
Source)
at com.sun.jdori.common.query.QueryImpl.execute(Unknown Source)
at JDOTest.TestJdo.run(TestJdo.java:52)
at JDOTest.TestJdo.main(TestJdo.java:39)
Caused by: java.util.NoSuchElementException: Could not obtain next object:
Unable to build object instance (MAYBE you don't have a constructor
available):class JDOTest.Person
at
org.apache.ojb.broker.accesslayer.RsIterator.next(RsIterator.java:310)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(QueryRe
ferenceBroker.java:147)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(QueryRe
ferenceBroker.java:244)
... 11 more
Exception in thread "main" javax.jdo.JDOUserException: Cannot close
PersistenceManager while transaction is still active.
at com.sun.jdori.common.PersistenceManagerImpl.close(Unknown Source)
at
com.sun.jdori.common.PersistenceManagerImpl.popCurrentWrapper(Unknown
Source)
at com.sun.jdori.common.PersistenceManagerWrapper.close(Unknown
Source)
at JDOTest.TestJdo.run(TestJdo.java:69)
at JDOTest.TestJdo.main(TestJdo.java:39)
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