update test codes
diff --git a/src/main/java/net/onrc/onos/util/GraphDBOperation.java b/src/main/java/net/onrc/onos/util/GraphDBOperation.java
index 1699bde..58cdc22 100644
--- a/src/main/java/net/onrc/onos/util/GraphDBOperation.java
+++ b/src/main/java/net/onrc/onos/util/GraphDBOperation.java
@@ -26,7 +26,7 @@
 	}
 	
 	@Override
-	public ISwitchObject newSwitch(String dpid) {
+ 	public ISwitchObject newSwitch(String dpid) {
 		FramedGraph<TitanGraph> fg = conn.getFramedGraph();	
 		ISwitchObject obj = fg.addVertex(null,ISwitchObject.class);
 		if (obj != null) {
diff --git a/src/test/java/net/onrc/onos/util/GraphDBOperationTest.java b/src/test/java/net/onrc/onos/util/GraphDBOperationTest.java
index 04ef815..01f244c 100644
--- a/src/test/java/net/onrc/onos/util/GraphDBOperationTest.java
+++ b/src/test/java/net/onrc/onos/util/GraphDBOperationTest.java
@@ -86,8 +86,7 @@
 		switches = op.getAllSwitches();
 		assertFalse(switches.iterator().hasNext());
 
-		ISwitchObject sw = op.newSwitch();
-		sw.setDPID("123");
+		ISwitchObject sw = op.newSwitch("123");
 		sw.setState(SwitchState.ACTIVE.toString());
 		conn.endTx(Transaction.COMMIT);
 
@@ -110,8 +109,7 @@
 		switches = op.getAllSwitches();
 		assertFalse(switches.iterator().hasNext());
 		
-		ISwitchObject sw = op.newSwitch();
-		sw.setDPID("123");
+		ISwitchObject sw = op.newSwitch("123");
 		sw.setState(SwitchState.ACTIVE.toString());
 		conn.endTx(Transaction.COMMIT);