public void setObjectMapper(ObjectMapper objectMapper) { PreconditionUtil.assertNull("ObjectMapper already set", this.objectMapper); this.objectMapper = objectMapper; }
private void checkNotInitialized() { PreconditionUtil.assertNull("module is already initialized, no further changes can be performed", context); }
public void addMetaProvider(MetaProvider provider) { PreconditionUtil.assertNull("module is already initialized and cannot be changed anymore", context); lookup.addProvider(provider); }
PreconditionUtil.assertNull(element.getId(), currentElement); idElementMap.put(element.getId(), element);