when the search key was a different cardinal type from the table index key.
e.g. where the one was INT and the other was LONG

make NonUniqueHashIndex directly subclass BaseIndex. There is no point in sub-classing HashIndex if it is going to override all of the logic anyhow.

MVStore: use a separate write version for every map, so that the meta map version matches the version of the other maps.

Issue 467: OSGi Class Loader (ability to create reference to class in other ClassLoader, for example in another OSGi bundle).

there is no point in calling convertTo(Value.STRING) here, since we're just going to call getString() on the result