# HG changeset patch
# User oc
# Date 1417421196 -32400
# Node ID fbd792d91055a31ed09268ed095c65b02c77928d
# Parent  11b59b223222717d0863b79b5a2ca85694312e83
add exception handling for case of a network interface don't have corresponding to the Multicast.

diff -r 11b59b223222 -r fbd792d91055 src/main/java/jp/ac/u_ryukyu/treevnc/TreeRootFinderListener.java
--- a/src/main/java/jp/ac/u_ryukyu/treevnc/TreeRootFinderListener.java	Mon Dec 01 17:03:27 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/treevnc/TreeRootFinderListener.java	Mon Dec 01 17:06:36 2014 +0900
@@ -31,7 +31,11 @@
 			InetAddress mAddr = InetAddress.getByName(McastAddr);
 			soc = new MulticastSocket(ConnectionParams.DEFAULT_VNC_ROOT_FINDER);
 			DatagramPacket recvPacket = new DatagramPacket(buf, BufSize);
-            soc.joinGroup(mAddr);
+            try {
+                soc.joinGroup(mAddr);
+            } catch (Exception e) {
+                // Ignore case of a network interface don't have corresponding to the Multicast.
+            }
 			while (!stopFlag) {
 				soc.receive(recvPacket);
 				String hostname = recvPacket.getAddress().getHostAddress();