You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@openjpa.apache.org by "javid.alimohideen" <ja...@gmail.com> on 2013/06/13 20:12:27 UTC
ClassCastException - org.apache.openjpa.util.IntId incompatible
Hi,
I have web application running on Websphere v8.5, that uses a JPA project
configured as utility project. The application suddenly started throwing
ClassCastException when performing select query. I have pasted the exception
stack trace. The weird things is it works sometime and at times I get this
exception. Also, if the DB tables have just one record then everything works
fine, if there are more than 1 record then I see this exception
The entities have a OneToMany and ManyToOne relationships defined.
Caused by: java.lang.ClassCastException: org.apache.openjpa.util.IntId
incompatible with com.jpa.dom.transactionqueue.BlockTransactionQueue
at
com.jpa.dom.transactionqueue.BlockCompleteTransaction.pcReplaceField(BlockCompleteTransaction.java)
at
org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateManagerImpl.java:3174)
at
org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(StateManagerImpl.java:2602)
at
org.apache.openjpa.kernel.StateManagerImpl.storeObject(StateManagerImpl.java:2592)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.setMappedBy(JDBCStoreManager.java:476)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:402)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:304)
at
com.ibm.ws.persistence.jdbc.kernel.WsJpaJDBCStoreManager.initialize(WsJpaJDBCStoreManager.java:149)
at
org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:112)
at
org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57)
at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:1036)
at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:994)
I can post any additional detail if needed. please, let me know.
Thanks
--
View this message in context: http://openjpa.208410.n2.nabble.com/ClassCastException-org-apache-openjpa-util-IntId-incompatible-tp7584145.html
Sent from the OpenJPA Users mailing list archive at Nabble.com.
Re: ClassCastException - org.apache.openjpa.util.IntId incompatible
Posted by parvatamaditya <pa...@gmail.com>.
have any one solved this,I am gettin same exception in weblogic
Application
@Id
@Column(name = "APP_ID", nullable = false)
private int appId;
@Column(name = "APP_NAME", nullable = false)
private String appName;
@Column(name = "GROUP_ID", nullable = false)
private int appGroupId;
@ManyToOne(optional=false)
@JoinColumn(name = "GROUP_ID",referencedColumnName="APP_GROUP")
private AppGroup appGroup;
AppGroup
@Id
@Column(name = "APP_GROUP", nullable = false)
private int groupId;
@Column(name = "GROUPNAME", nullable = false)
private String groupName;
@OneToMany(mappedBy="appGroup",fetch=FetchType.EAGER,cascade=CascadeType.ALL)
private Set<Application> apps;
and am getting
org.apache.openjpa.util.IntId cannot be cast to
com.nscorp.tibco.template.db.AppGroup
--
View this message in context: http://openjpa.208410.n2.nabble.com/ClassCastException-org-apache-openjpa-util-IntId-incompatible-tp7584145p7588779.html
Sent from the OpenJPA Users mailing list archive at Nabble.com.
Re: ClassCastException - org.apache.openjpa.util.IntId incompatible
Posted by "javid.alimohideen" <ja...@gmail.com>.
Thanks Kevin,
I tried setting the QuerySQLCache to false but that didn't seem to fix the
issue. I am still seeing those exceptions.
Does it have to do anything with class loaders or maybe something with the
way I currently have setup my parent-child relations
As mentioned before it works fine if there is just one record in my parent
table, if more than one then I get the exception.
Here are my parent & child class
//Parent super class
@MappedSuperclass
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
@Access(AccessType.FIELD)
public abstract class TransactionQueue {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name="TransactionID")
private int transactionId;
.. other field omitted
}
//Parent class
@Entity
@Access(AccessType.FIELD)
public class OrderTransactionQueue extends TransactionQueue implements
Serializable {
private static final long serialVersionUID = 1L;
@OneToMany(mappedBy="orderTransactionQueue", fetch=FetchType.EAGER,
cascade=CascadeType.ALL,targetEntity=OrderTransaction.class)
private List<OrderTransaction> orderTransactions;
}
//Child class
@Entity
@IdClass(OrderTransactionPK.class)
public class OrderTransaction implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@Column(name="OrderNum")
private int orderNum;
//bi-directional many-to-one association to OrderTransactionQueue
@ManyToOne
@JoinColumn(name="TransactionID")
@Id
private OrderTransactionQueue orderTransactionQueue;
}
//Child Id class
public class OrderTransactionPK implements Serializable {
//default serial version id, required for serializable classes.
private static final long serialVersionUID = 1L;
private int orderNum;
private int orderTransactionQueue;
}
Please, let me know if you need more information.
Thanks,
Javid
On Thu, Jun 13, 2013 at 2:36 PM, Kevin Sutter [via OpenJPA] <
ml-node+s208410n7584159h24@n2.nabble.com> wrote:
> Since you are using WebSphere, I would also suggest opening a PMR for this
> problem through the normal IBM support channels. If this question does
> turn into something "real" and requires an iFix, then you'll need the PMR
> and APAR to get the fix delivered anyway...
>
> Since your query works some of the times and not others, my first guess is
> that there might be an issue with the SQL cache. You can quickly verify
> this by turning off the SQL cache via this property. If that works for
> you, at least you have a workaround until a real fix can be determined.
>
> <property name="openjpa.jdbc.QuerySQLCache" value="false">
>
> There are other options with this Cache that might help you out. For
> example, if turning off the Cache completely gets you around the problem,
> then you could just turn it off for a specific query. Details can be
> found
> in the documentation [1].
>
> Hope this helps get you started.
> Kevin
>
> [1]
>
> http://ci.apache.org/projects/openjpa/trunk/docbook/manual.html#ref_guide_cache_querysql
>
>
> On Thu, Jun 13, 2013 at 1:12 PM, javid.alimohideen <
> [hidden email] <http://user/SendEmail.jtp?type=node&node=7584159&i=0>>
> wrote:
>
> > Hi,
> > I have web application running on Websphere v8.5, that uses a JPA
> project
> > configured as utility project. The application suddenly started throwing
> > ClassCastException when performing select query. I have pasted the
> > exception
> > stack trace. The weird things is it works sometime and at times I get
> this
> > exception. Also, if the DB tables have just one record then everything
> > works
> > fine, if there are more than 1 record then I see this exception
> >
> > The entities have a OneToMany and ManyToOne relationships defined.
> >
> > Caused by: java.lang.ClassCastException: org.apache.openjpa.util.IntId
> > incompatible with com.jpa.dom.transactionqueue.BlockTransactionQueue
> > at
> >
> >
> com.jpa.dom.transactionqueue.BlockCompleteTransaction.pcReplaceField(BlockCompleteTransaction.java)
>
> > at
> >
> >
> org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateManagerImpl.java:3174)
>
> > at
> >
> >
> org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(StateManagerImpl.java:2602)
>
> > at
> >
> >
> org.apache.openjpa.kernel.StateManagerImpl.storeObject(StateManagerImpl.java:2592)
>
> > at
> >
> >
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.setMappedBy(JDBCStoreManager.java:476)
>
> > at
> >
> >
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:402)
>
> > at
> >
> >
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:304)
>
> > at
> >
> >
> com.ibm.ws.persistence.jdbc.kernel.WsJpaJDBCStoreManager.initialize(WsJpaJDBCStoreManager.java:149)
>
> > at
> >
> >
> org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:112)
>
> > at
> >
> >
> org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57)
>
> > at
> > org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:1036)
> > at
> org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:994)
> >
> > I can post any additional detail if needed. please, let me know.
> >
> > Thanks
> >
> >
> >
> > --
> > View this message in context:
> >
> http://openjpa.208410.n2.nabble.com/ClassCastException-org-apache-openjpa-util-IntId-incompatible-tp7584145.html
> > Sent from the OpenJPA Users mailing list archive at Nabble.com.
> >
>
>
> ------------------------------
> If you reply to this email, your message will be added to the discussion
> below:
>
> http://openjpa.208410.n2.nabble.com/ClassCastException-org-apache-openjpa-util-IntId-incompatible-tp7584145p7584159.html
> To unsubscribe from ClassCastException - org.apache.openjpa.util.IntId
> incompatible, click here<http://openjpa.208410.n2.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=7584145&code=amF2aWQuYWxpbW9oaWRlZW5AZ21haWwuY29tfDc1ODQxNDV8LTQ3NzA1MDU0MA==>
> .
> NAML<http://openjpa.208410.n2.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml>
>
--
View this message in context: http://openjpa.208410.n2.nabble.com/ClassCastException-org-apache-openjpa-util-IntId-incompatible-tp7584145p7584183.html
Sent from the OpenJPA Users mailing list archive at Nabble.com.
Re: ClassCastException - org.apache.openjpa.util.IntId incompatible
Posted by Kevin Sutter <kw...@gmail.com>.
Since you are using WebSphere, I would also suggest opening a PMR for this
problem through the normal IBM support channels. If this question does
turn into something "real" and requires an iFix, then you'll need the PMR
and APAR to get the fix delivered anyway...
Since your query works some of the times and not others, my first guess is
that there might be an issue with the SQL cache. You can quickly verify
this by turning off the SQL cache via this property. If that works for
you, at least you have a workaround until a real fix can be determined.
<property name="openjpa.jdbc.QuerySQLCache" value="false">
There are other options with this Cache that might help you out. For
example, if turning off the Cache completely gets you around the problem,
then you could just turn it off for a specific query. Details can be found
in the documentation [1].
Hope this helps get you started.
Kevin
[1]
http://ci.apache.org/projects/openjpa/trunk/docbook/manual.html#ref_guide_cache_querysql
On Thu, Jun 13, 2013 at 1:12 PM, javid.alimohideen <
javid.alimohideen@gmail.com> wrote:
> Hi,
> I have web application running on Websphere v8.5, that uses a JPA project
> configured as utility project. The application suddenly started throwing
> ClassCastException when performing select query. I have pasted the
> exception
> stack trace. The weird things is it works sometime and at times I get this
> exception. Also, if the DB tables have just one record then everything
> works
> fine, if there are more than 1 record then I see this exception
>
> The entities have a OneToMany and ManyToOne relationships defined.
>
> Caused by: java.lang.ClassCastException: org.apache.openjpa.util.IntId
> incompatible with com.jpa.dom.transactionqueue.BlockTransactionQueue
> at
>
> com.jpa.dom.transactionqueue.BlockCompleteTransaction.pcReplaceField(BlockCompleteTransaction.java)
> at
>
> org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateManagerImpl.java:3174)
> at
>
> org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(StateManagerImpl.java:2602)
> at
>
> org.apache.openjpa.kernel.StateManagerImpl.storeObject(StateManagerImpl.java:2592)
> at
>
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.setMappedBy(JDBCStoreManager.java:476)
> at
>
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:402)
> at
>
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:304)
> at
>
> com.ibm.ws.persistence.jdbc.kernel.WsJpaJDBCStoreManager.initialize(WsJpaJDBCStoreManager.java:149)
> at
>
> org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:112)
> at
>
> org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57)
> at
> org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:1036)
> at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:994)
>
> I can post any additional detail if needed. please, let me know.
>
> Thanks
>
>
>
> --
> View this message in context:
> http://openjpa.208410.n2.nabble.com/ClassCastException-org-apache-openjpa-util-IntId-incompatible-tp7584145.html
> Sent from the OpenJPA Users mailing list archive at Nabble.com.
>