[CAY-1404] ClassCastException during ObjectDetachOperation

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0RC2
• Fix Version/s: 3.0RC3
• Component/s: ROP
• Assignee: Andrey Razumovsky
• Reporter: Neil Rutherford
• Created: 07/Mar/10 14:48
• Updated: 21/Mar/10 14:42
• Resolved: 21/Mar/10 14:42

Description

I have modeled a too-many relationship as a map, when executing a query with a prefetch for this relationship (in my ROP client) I get the following:

java.lang.ClassCastException: org.apache.cayenne.util.PersistentObjectMap cannot be cast to java.util.Collection
at org.apache.cayenne.util.ObjectDetachOperation$1.visitToMany(ObjectDetachOperation.java:131)
at org.apache.cayenne.reflect.generic.DataObjectToManyProperty.visit(DataObjectToManyProperty.java:111)
at org.apache.cayenne.reflect.PersistentDescriptor.visitSuperProperties(PersistentDescriptor.java:360)
at org.apache.cayenne.reflect.PersistentDescriptor.visitProperties(PersistentDescriptor.java:402)
at org.apache.cayenne.reflect.LazyClassDescriptorDecorator.visitProperties(LazyClassDescriptorDecorator.java:179)
at org.apache.cayenne.util.ObjectDetachOperation.detach(ObjectDetachOperation.java:98)