DATAMONGO-1205 - Log only CyclicPropertyReferenceException message.

We log CyclicPropertyReferenceException with its message only and removed the stack trace from the log. The stacktrace points to a verifier location and is not particularly useful in finding the offending code. This change creates consistency over how CyclicPropertyReferenceException is logged.

Original pull request: #397.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/MongoPersistentEntityIndexResolver.java

@@ -276,7 +276,7 @@ public class MongoPersistentEntityIndexResolver implements IndexResolver {
 							appendTextIndexInformation(propertyDotPath, indexDefinitionBuilder,
 									mappingContext.getRequiredPersistentEntity(persistentProperty.getActualType()), optionsForNestedType, guard);
 						} catch (CyclicPropertyReferenceException e) {
-							LOGGER.info(e.getMessage(), e);
+							LOGGER.info(e.getMessage());
 						} catch (InvalidDataAccessApiUsageException e) {
 							LOGGER.info(String.format("Potentially invalid index structure discovered. Breaking operation for %s.",
 									entity.getName()), e);