ATLAS-2803: Improvements to toString methods

intg/src/main/java/org/apache/atlas/model/typedef/AtlasEnumDef.java

@@ -217,6 +217,9 @@ public class AtlasEnumDef extends AtlasBaseTypeDef implements Serializable {
         sb.append(", elementDefs=[");
         dumpObjects(elementDefs, sb);
         sb.append("]");
+        sb.append(", defaultValue {");
+        sb.append(defaultValue);
+        sb.append('}');
         sb.append('}');
 
         return sb;

intg/src/main/java/org/apache/atlas/model/typedef/AtlasRelationshipDef.java

@@ -255,9 +255,19 @@ public class AtlasRelationshipDef extends AtlasStructDef implements java.io.Seri
         sb.append(',');
         sb.append(this.propagateTags);
         sb.append(',');
-        sb.append(this.endDef1.toString());
+        if (this.endDef1 != null) {
+            sb.append(this.endDef1.toString());
+        }
+        else {
+            sb.append(" end1 is null!");
+        }
         sb.append(',');
-        sb.append(this.endDef2.toString());
+        if (this.endDef2 != null) {
+            sb.append(this.endDef2.toString());
+        }
+        else {
+            sb.append(" end2 is null!");
+        }
         sb.append('}');
         return sb;
     }