private void closeAndSwallow(final AutoCloseable autoCloseable, final String name) {
        if (autoCloseable != null) {
            try {
                autoCloseable.close();
            } catch (Exception e) {
                LOGGER.error("Error closing {}: {}", name, e.getMessage(), e);
            }
        } else {
            LOGGER.debug("{} is null", name);
        }
    }
@return The map definition UIDs loaded so far
stroom-pipeline/src/main/java/stroom/pipeline/refdata/store/offheapstore/OffHeapStagingStore.java