diff --git a/intg/src/main/java/org/apache/atlas/model/typedef/AtlasRelationshipEndDef.java b/intg/src/main/java/org/apache/atlas/model/typedef/AtlasRelationshipEndDef.java
index 5847eaf..302b879 100644
--- a/intg/src/main/java/org/apache/atlas/model/typedef/AtlasRelationshipEndDef.java
+++ b/intg/src/main/java/org/apache/atlas/model/typedef/AtlasRelationshipEndDef.java
@@ -126,7 +126,7 @@
      *   - whether this is a legacy attribute
      */
     public AtlasRelationshipEndDef(String typeName, String name, Cardinality cardinality, boolean isContainer, boolean isLegacyAttribute) {
-        this(typeName, name, cardinality, isContainer, isLegacyAttribute,"");
+        this(typeName, name, cardinality, isContainer, isLegacyAttribute, null);
     }
     /**
      *
diff --git a/intg/src/main/java/org/apache/atlas/model/typedef/AtlasStructDef.java b/intg/src/main/java/org/apache/atlas/model/typedef/AtlasStructDef.java
index 8f7f56f..a4c707a 100644
--- a/intg/src/main/java/org/apache/atlas/model/typedef/AtlasStructDef.java
+++ b/intg/src/main/java/org/apache/atlas/model/typedef/AtlasStructDef.java
@@ -286,7 +286,7 @@
 
         public AtlasAttributeDef(String name, String typeName, boolean isOptional, Cardinality cardinality,
                                  int valuesMinCount, int valuesMaxCount, boolean isUnique, boolean isIndexable, List<AtlasConstraintDef> constraints) {
-            this(name, typeName, isOptional, cardinality, valuesMinCount, valuesMaxCount, isUnique, isIndexable, null, constraints, "");
+            this(name, typeName, isOptional, cardinality, valuesMinCount, valuesMaxCount, isUnique, isIndexable, null, constraints, null);
         }
 
         public AtlasAttributeDef(String name, String typeName, boolean isOptional, Cardinality cardinality,