Mike - Can you post the Entities that you're having problems with?
Thanks, Rick On Tue, Apr 24, 2012 at 10:47 PM, Mike Goldner <mike.gold...@gmail.com>wrote: > I have an entity that extends an abstract MappedSuperClass class. The > abstract class only declares an ID and Version field. > > When I attempt to persist the object, I get the following error: > > 2185 [main] DEBUG openjpa.Runtime - An exception occurred while ending the > transaction. This exception will be re-thrown. > java.lang.ClassCastException: java.util.ArrayList cannot be cast to > java.lang.String > at > > org.apache.openjpa.kernel.TransferFieldManager.fetchStringField(TransferFiel > dManager.java:76) > > I'm not familiar with the OpenJPA codebase, but I made an attempt to see > what was happening via the Eclipse debugger. > > It seems that while in the StateManagerImpl class there is a mismatch in > field numbering used to retrieve fields from my entity. In my case, I am > expecting to fetch a String value for my field. While in the > "fetchString(int field)" method, I have a field number that corresponds to > the field index of the _meta._allFields array. However, when the code > proceeds to the "fetchStringField(int field)" method, it seems to return a > completely different field (an ArrayList, which explains the exception). > > While it may be coincidence, I notice that there is a _pc field that > appears > to have a representation of my entity fields that is sorted alphabetically > and does not match the ordering of the _meta._allFields field. > > I am running OpenJPA 2.2.0 with Java 6 using Derby as the DB. I am > enhancing the classes at compile time using the openjpa-maven-plugin. > > Mike Goldner > > > -- *Rick Curtis*
