Removed .isCreated() call which is not available in JDK6 version of ES
diff --git a/elasticsearch/src/main/java/org/apache/metamodel/elasticsearch/ElasticSearchInsertBuilder.java b/elasticsearch/src/main/java/org/apache/metamodel/elasticsearch/ElasticSearchInsertBuilder.java
index d4302a7..321af1d 100644
--- a/elasticsearch/src/main/java/org/apache/metamodel/elasticsearch/ElasticSearchInsertBuilder.java
+++ b/elasticsearch/src/main/java/org/apache/metamodel/elasticsearch/ElasticSearchInsertBuilder.java
@@ -70,7 +70,8 @@
         requestBuilder.setCreate(true);
 
         final IndexResponse result = requestBuilder.execute().actionGet();
-        logger.debug("Inserted document: id={}, created={}", result.getId(), result.isCreated());
+        
+        logger.debug("Inserted document: id={}", result.getId());
     }
 
 }