@Override
    public RecordStore getExistingRecordStore(int partitionId, String mapName) {
        return getPartitionContainer(partitionId).getExistingRecordStore(mapName);
    }
@Test(expected = AssertionError.class)
    @RequireAssertEnabled
    public void testGetExistingRecordStore_withGenericPartitionId() {
        mapServiceContext.getExistingRecordStore(GENERIC_PARTITION_ID, "anyMap");
    }