public T getObjectAt(long key) {
		try (LockHold hold = LockHold.lock(lock.readLock())) {
			return objects.get(key);
		}
		catch (IOException e) {
			adapter.dbError(e);
			return null;
		}
	}
Get the object having the given key

@param key the key
@return the object, or null
Ghidra/Debug/ProposedUtils/src/main/java/ghidra/util/database/DBCachedObjectStore.java