Give TClass a method to get the corresponding JDBC type id, just as TInstance can get a DataTypeDescriptor.
Update Direct to use those in place of AkType.
Reenable the direct data-type tests.
Fix the actual problem with getTime.
Remove old AkType-based test suite, which was only being used in a minimal way to drive a subset of the old RowData conversion test.
Use the Type method instead of duplicating it.
Get rid of AkType in Type.
Not collating like null AkType.
Finally, remove the enum.