added default value "root" for user

Author: Mark

ChangeLog

@@ -7,6 +7,7 @@ v4.1.10 (2017-02-xx)
 * added support serializing non-generic classes that extend collections
 * added support serializing/deserializing byte and Byte
 * fixed serialization of additionalFields for objects and maps
+* added default value "root" for user
 
 v4.1.9 (2017-02-10)
 ---------------------------

src/main/java/com/arangodb/internal/ArangoDBConstants.java

@@ -29,6 +29,7 @@ public class ArangoDBConstants {
 	public static final String DEFAULT_HOST = "127.0.0.1";
 	public static final Integer DEFAULT_PORT = 8529;
 	public static final Integer DEFAULT_TIMEOUT = 0;
+	public static final String DEFAULT_USER = "root";
 	public static final Boolean DEFAULT_USE_SSL = false;
 
 	public static final int INTEGER_BYTES = Integer.SIZE / Byte.SIZE;

src/main/java/com/arangodb/internal/InternalArangoDB.java

@@ -99,7 +99,7 @@ protected static Integer loadTimeout(final Properties properties, final Integer
 	}
 
 	protected static String loadUser(final Properties properties, final String currentValue) {
-		return getProperty(properties, PROPERTY_KEY_USER, currentValue, null);
+		return getProperty(properties, PROPERTY_KEY_USER, currentValue, ArangoDBConstants.DEFAULT_USER);
 	}
 
 	protected static String loadPassword(final Properties properties, final String currentValue) {

src/test/resources/arangodb.properties

@@ -1,2 +1 @@
 arangodb.hosts=127.0.0.1:8529
-arangodb.user=root