public Map<String, Configuration> getEntireConfiguration() {
    Set<String> keys = getConfigurationRegion().keySet();
    return getConfigurationRegion().getAll(keys);
  }
For tests only. TODO: clean this up and remove from production code
<p>
Throws {@code AssertionError} wrapping any exception thrown by operation.
geode-core/src/main/java/org/apache/geode/distributed/internal/InternalConfigurationPersistenceService.java