[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3148) Exception thrown by debug trace code: ComponentType toLoggableString
Exception thrown by debug trace code: ComponentType toLoggableString
--------------------------------------------------------------------
Key: HHH-3148
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3148
Project: Hibernate3
Issue Type: Bug
Affects Versions: 3.2.6
Environment: Hibernate 3.2.6.ga
HibernateAnnotations 3.3.0.ga
Oracle 10g Express Edition
Reporter: Pete Geraghty
Priority: Minor
Attachments: ToLoggableStringExample.txt
The method toLoggableString in ComponentType is used to provide tracing output when
running with log level DEBUG. In some circumstances it throws a ClassCastException.
This is not a good idea in tracing code and obscures underlying problems.
In my case the underlying problem was a previous incorrect call to set a parameter value
in a query. I saw that previous JIRA issues have mentioned this ClassCastException as a
side effect of other underlying problems - it is a distraction and time-waster.
Lines 375-378 read:
EntityMode entityMode = tuplizerMapping.guessEntityMode( value );
if ( entityMode == null ) {
throw new ClassCastException( value.getClass().getName() );
}
A better solution would be to just us String.valueOf
EntityMode entityMode = tuplizerMapping.guessEntityMode( value );
if ( entityMode == null ) {
return String.valueOf(value);
}
Another possibility would be to concatenate some diagnostic message with String.valueOf,
but personally I don't think that be helpful.
Stack trace is:
Exception in thread "main" java.lang.ClassCastException: java.lang.String
at org.hibernate.type.ComponentType.toLoggableString(ComponentType.java:377)
at org.hibernate.pretty.Printer.toString(Printer.java:76)
at org.hibernate.engine.QueryParameters.traceParameters(QueryParameters.java:277)
at org.hibernate.engine.query.HQLQueryPlan.performIterate(HQLQueryPlan.java:210)
at org.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1192)
at org.hibernate.impl.QueryImpl.iterate(QueryImpl.java:46)
at hib.example.EntityWithEmbeddable.main(EntityWithEmbeddable.java:44)
Example code for the classes and schema to reproduce is pasted into the attachment.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://opensource.atlassian.com/projects/hibernate/secure/Administrators....
-
For more information on JIRA, see: http://www.atlassian.com/software/jira