--- a/src/main/java/com/glavsoft/rfb/protocol/ReceiverTask.java	Sun Feb 24 16:47:30 2019 +0900
+++ b/src/main/java/com/glavsoft/rfb/protocol/ReceiverTask.java	Sun Mar 03 18:56:42 2019 +0900
@@ -125,7 +125,7 @@
                 switch (messageId) {
                     case FRAMEBUFFER_UPDATE:
                         // logger.fine("Server message: FramebufferUpdate (0)");
-                        framebufferUpdateMessage();
+                        framebufferUpdateMessage(reader);
                         break;
                     case SET_COLOR_MAP_ENTRIES:
                         logger.severe("Server message SetColorMapEntries is not implemented. Skip.");
@@ -239,15 +239,15 @@
         clipboardController.updateSystemClipboard(reader.readBytes(length));
     }
 
-    public void framebufferUpdateMessage() throws Exception {
+    public void framebufferUpdateMessage(Reader reader) throws Exception {
 
+        int numberOfRectangles;
         try {
             reader.readByte(); // padding
-            this.numberOfRectangles = reader.readUInt16();
-            if(numberOfRectangles > 2) {
+            numberOfRectangles = this.reader.readUInt16();
+            if(numberOfRectangles > 3) {
                 System.out.println("numberofrectangle : " + numberOfRectangles);
                 if (rfb.getViewer().getUseMulticast()){
-
                     return; // Discard invalid packet
                 }
             }
@@ -314,6 +314,7 @@
                     context.setFbHeight(rect.height);
                     repaintController.updateRemoteDesktopName(context);
                     reader.reset();
+                    System.out.println("INIT_DATA: "+rect);
                     // request one screen
                     fullscreenFbUpdateIncrementalRequest = new FramebufferUpdateRequestMessage(rect.x, rect.y, singleWidth, singleHeight, false);
                     // All children multicastqueue should be discarded here.
@@ -361,6 +362,8 @@
             e.getMessage();
             e.printStackTrace();
             reader.close();
+        } catch (Exception e) {
+            System.out.println("FrameBufferUpdate: "+e);
         }
 
         sendFrameBufferUpdateRequest();

--- a/src/main/java/jp/ac/u_ryukyu/treevnc/BroadcastRFBListener.java	Sun Feb 24 16:47:30 2019 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/treevnc/BroadcastRFBListener.java	Sun Mar 03 18:56:42 2019 +0900
@@ -1,9 +1,7 @@
 package jp.ac.u_ryukyu.treevnc;
 
-import com.glavsoft.rfb.protocol.ProtocolContext.TreeCommand;
 import com.glavsoft.rfb.protocol.ReceiverTask;
 import com.glavsoft.transport.Reader;
-import com.glavsoft.viewer.ViewerInterface;
 import com.glavsoft.viewer.swing.ConnectionParams;
 
 import java.io.ByteArrayInputStream;
@@ -66,13 +64,13 @@
 				int len = recvPacket.getLength();
 				boolean isTreeRoot = rfb.isTreeManager();
 				if (receiverTask != null) {
-					receiverTask.setReader(new Reader(new ByteArrayInputStream(reply)));
+					Reader reader = new Reader(new ByteArrayInputStream(reply));
 					if (receiverTask.getMessageId() == FRAMEBUFFER_UPDATE) {
-						receiverTask.framebufferUpdateMessage();
+						receiverTask.framebufferUpdateMessage(reader);
 					}
 				}
 			} catch (Exception e) {
-				System.out.println("broadcast-rfb-listener :" + e.getMessage());
+				System.out.println("broadcast-rfb-listener : " + e.getMessage());
 			}
 		}
 	}