Hi!
This is a very long e-mail. Excuse-me sending as is, but is the only way to
explain this bug.
I think I already reported this issue, but since today I had some extended
tests, I'll report results:
1) I've created a bean called MyFirstBean with properties
public class MyFirstBean implements Serializable {
private int beanId;
private String beanName;
private ArrayList myCollection = new ArrayList( );
public void setBeanId( int newBeanId ) {
beanId = newBeanId;
}
public int getBeanId( ) {
return beanId;
}
public void setBeanName( String newBeanName ) {
beanName = newBeanName;
}
public String getBeanName( ) {
return beanName;
}
public void setMyCollection( int index, MySecondBean bean ) {
if( index > myCollection.size( ) )
myCollection.add( bean );
else
myCollection.set( index, bean );
}
public MySecondBean getMyCollection( int index ) {
return ( MySecondBean )myCollection.get( index );
}
public Collection getMyCollection( ) {
return myCollection;
}
public void setMyCollection( Collection myNewCollection ) {
myCollection.clear( );
myCollection.addAll( myNewCollection );
}
}
Ok, define the main class (MySecondBean no makes difference here), and
creating a repository.xml that makes relationships between two tables to
work by a collection descriptor, if I maintain the method setMyCollection
(int, bean), I get (mail continues after stacktrace):
java.lang.NullPointerException
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.retrieveCollection(Unkn
own Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.retrieveCollections(Unk
nown Source)
at
org.apache.ojb.broker.accesslayer.RsIterator.getObjectFromResultSet(Unknown
Source)
[org.apache.ojb.broker.ta.PersistenceBrokerFactoryDefaultImpl] INFO: Already
created persistence broker instances: 1
[ConfigurableFactory] INFO: ConfigurableFactory called to serve a class
org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl instance
[ConfigurableFactory] INFO: ConfigurableFactory called to serve a class
org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl instance
[ConfigurableFactory] INFO: ConfigurableFactory called to serve a class
org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl instance
[ConfigurableFactory] INFO: ConfigurableFactory called to serve a class
org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl instance
[ConfigurableFactory] INFO: ConfigurableFactory called to serve a class
org.apache.ojb.broker.accesslayer.sql.SqlGeneratorDefaultImpl instance
at org.apache.ojb.broker.accesslayer.RsIterator.next(Unknown Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)[org.apache.ojb.broker.accesslayer.RsIterator] ERROR: null
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
br.com.everest.composer.persistence.TestePersistente.<init>(TestePersistente
.java:39)
at
br.com.everest.composer.persistence.TestePersistente.main(TestePersistente.j
ava:63)
java.lang.NullPointerException
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.retrieveCollection(Unkn
own Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.retrieveCollections(Unk
nown Source)
at
org.apache.ojb.broker.accesslayer.RsIterator.getObjectFromResultSet(Unknown
Source)
at org.apache.ojb.broker.accesslayer.RsIterator.next(Unknown Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)Erro: null
at
br.com.everest.composer.persistence.TestePersistente.<init>(TestePersistente
.java:39)
at
br.com.everest.composer.persistence.TestePersistente.main(TestePersistente.j
ava:63)
java.util.NoSuchElementException
at org.apache.ojb.broker.accesslayer.RsIterator.next(Unknown Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
br.com.everest.composer.persistence.TestePersistente.<init>(TestePersistente
.java:39)
at
br.com.everest.composer.persistence.TestePersistente.main(TestePersistente.j
ava:63)
and, if I remove this method, maintaining only setMyCollection (Collection),
all works fine.
Since the bean is correct (and compatible) with JavaBean spec, someone can
fix this? I really tryied to do this, but OJB is above my compreension (I
don't have domain over XML/Reflections APIs - and I get lost in OJB
sources).
Thanks,
Edson Richter
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