: Collections.<ConfigurationAware> emptySet());
components.addAll(mustacheListeners);
components.addAll(helpers.values());
components.add(literalSupport);
this.properties = initializeProperties(builder,
<BUG>getConfigurationKeysToProcess(components));
if (getBooleanPropertyValue(EngineConfigurationKey.NO_VALUE_INDICATES_PROBLEM)) {
LOGGER.warn(</BUG>
"{}.{} is deprecated, use appropriate MissingValueHandler instance instead",
EngineConfigurationKey.class.getSimpleName(),

: Collections.<ConfigurationAware> emptySet());
components.addAll(mustacheListeners);
components.addAll(helpers.values());
components.add(literalSupport);
this.properties = initializeProperties(builder,
getConfigurationKeysToProcess(components));
if (getBooleanPropertyValue(
EngineConfigurationKey.NO_VALUE_INDICATES_PROBLEM)) {
LOGGER.warn(
"{}.{} is deprecated, use appropriate MissingValueHandler instance instead",
EngineConfigurationKey.class.getSimpleName(),
