JPOX Types.CHAR error

I'm playing around with JPOX right now trying to get things to work, but
I'm having a problem with mapping the Java types to the JDBC types it
seems like. JPOX comes back and tells me that the JDBC driver doesn't
support Types.CHAR, which I find very hard to believe.

I'm running PostgreSQL 8.1.2 (just on my testing box) and I have JDBC
driver postgresql-8.1-405.jdbc3.jar. I also have the latest (1.1.0)
JPOX jars and the jdo2-api-2.0.jar. I'm running on an XP machine with
Java 1.5.0_6. Any help would be great, thanks!

Here's the stack trace:

22:47:00,978 (main) ERROR [JPOX.SchemaTool] - An exception was thrown
during the operation of SchemaTool. Please refer to the log for full
details. The following may help : Failed to generate new Mapping of type
org.jpox.store.rdbms.mapping.CharRDBMSMapping, exception : JDBC type
"Types.CHAR" not supported by the JDBC driver. Please check your
specification of "jdbc-type" and the driver capabilities.
org.jpox.store.exceptions.UnsupportedDataTypeException: JDBC type
"Types.CHAR" not supported by the JDBC driver. Please check your
specification of "jdbc-type" and the driver capabilities.

at
org.jpox.store.rdbms.adapter.DatabaseAdapter.getTypeInfo(DatabaseAdapter
.java:706)

at
org.jpox.store.rdbms.mapping.CharRDBMSMapping.getTypeInfo(CharRDBMSMappi
ng.java:205)

at
org.jpox.store.rdbms.mapping.CharRDBMSMapping.initialize(CharRDBMSMappin
g.java:187)

at
org.jpox.store.rdbms.mapping.CharRDBMSMapping.<init>(CharRDBMSMapping.ja
va:100)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)

at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorA
ccessorImpl.java:39)

at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingCons
tructorAccessorImpl.java:27)

at
java.lang.reflect.Constructor.newInstance(Constructor.java:494)

at
org.jpox.store.rdbms.mapping.RDBMSMappingFactory.createMapping(RDBMSMapp
ingFactory.java:78)

at
org.jpox.store.rdbms.mapping.AbstractRDBMSMappingManager.createDatastore
Mapping(AbstractRDBMSMappingManager.java:460)

at
org.jpox.store.mapping.SingleFieldMapping.prepareDatastoreMapping(Single
FieldMapping.java:103)

at
org.jpox.store.mapping.SingleFieldMapping.<init>(SingleFieldMapping.java
:66)

at
org.jpox.store.mapping.BaseStringMapping.<init>(BaseStringMapping.java:5
7)

at
org.jpox.store.mapping.StringMapping.<init>(StringMapping.java:54)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)

at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorA
ccessorImpl.java:39)

at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingCons
tructorAccessorImpl.java:27)

at
java.lang.reflect.Constructor.newInstance(Constructor.java:494)

at
org.jpox.store.mapping.MappingFactory.createMapping(MappingFactory.java:
114)

at
org.jpox.store.mapping.AbstractMappingManager.getMapping(AbstractMapping
Manager.java:348)

at
org.jpox.store.rdbms.table.ClassTable.addFieldMetaData(ClassTable.java:4
30)

at
org.jpox.store.rdbms.table.ClassTable.manageClass(ClassTable.java:392)

at
org.jpox.store.rdbms.table.ClassTable.initializeForClass(ClassTable.java
:775)

at
org.jpox.store.rdbms.table.ClassTable.initialize(ClassTable.java:277)

at
org.jpox.store.rdbms.RDBMSManager$ClassAdder.addClassTablesAndValidate(R
DBMSManager.java:2656)

at
org.jpox.store.rdbms.RDBMSManager$ClassAdder.run(RDBMSManager.java:2268)

at
org.jpox.store.rdbms.RDBMSManager$MgmtTransaction.execute(RDBMSManager.j
ava:2124)

at
org.jpox.store.rdbms.RDBMSManager.addClasses(RDBMSManager.java:577)

at org.jpox.SchemaTool.createSchemaTables(SchemaTool.java:225)

at org.jpox.SchemaTool.main(SchemaTool.java:855)

-Jason Porter