Remove use of StringBuffer

[netvirt.git] / dhcpservice / impl / src / main / java / org / opendaylight / netvirt / dhcpservice / DhcpServiceUtils.java

diff --git a/dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpServiceUtils.java b/dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpServiceUtils.java
index 9d52d641bc603c42c2b8ef32931a348c7efa9386..32bde9e84e814d8256754138c21edde5802325d3 100644 (file)
--- a/dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpServiceUtils.java
+++ b/dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpServiceUtils.java
@@ -148,14 +148,14 @@ public final class DhcpServiceUtils {
     }
 
     private static String getDhcpFlowRef(BigInteger dpId, long tableId, String vmMacAddress) {
-        return new StringBuffer().append(DhcpMConstants.FLOWID_PREFIX)
+        return new StringBuilder().append(DhcpMConstants.FLOWID_PREFIX)
                 .append(dpId).append(NwConstants.FLOWID_SEPARATOR)
                 .append(tableId).append(NwConstants.FLOWID_SEPARATOR)
                 .append(vmMacAddress).toString();
     }
 
     private static String getDhcpArpFlowRef(BigInteger dpId, long tableId, long lportTag, String ipAddress) {
-        return new StringBuffer().append(DhcpMConstants.FLOWID_PREFIX)
+        return new StringBuilder().append(DhcpMConstants.FLOWID_PREFIX)
                 .append(dpId).append(NwConstants.FLOWID_SEPARATOR)
                 .append(tableId).append(NwConstants.FLOWID_SEPARATOR)
                 .append(lportTag).append(NwConstants.FLOWID_SEPARATOR)