--- a/src/main/java/com/glavsoft/rfb/encoding/decoder/ZRLEDecoder.java	Thu Feb 13 13:43:34 2020 +0900
+++ b/src/main/java/com/glavsoft/rfb/encoding/decoder/ZRLEDecoder.java	Thu Feb 13 21:52:36 2020 +0900
@@ -164,14 +164,13 @@
 					// packet full
 					flushDeflator();
 					int bytesRead = (int)deflater.getBytesRead();
-					ReceiverTask.dump("get bytesRead ",bytes, flushOffset+bytesRead - 8, 20);
-					System.out.println();
 					prevoffset = flushOffset+bytesRead;
 					assert(prevoffset==offset);
 					System.out.println("od prevOffset = "+prevoffset+" span = "+(prevoffset-flushOffset));
 					if (c0rect!=null) { // finish pahse 1
 						flushRectangle(c0rect);
-						moveNext();
+						c1.position(c1.position()+16); // header space
+						prevC1Offset = c1.position();
 					}
 					flushRectangle(c1rect); // phase 2
 					flushMuticast(rfb, bytes);
@@ -192,7 +191,7 @@
 			prevoffset = offset;
 			if (last) {
 				flushDeflator();
-				if (c0rect!=null) { flushRectangle(c0rect); moveNext(); }
+				if (c0rect!=null) flushRectangle(c0rect);
 				flushRectangle(c1rect);
 				flushMuticast(rfb, bytes);
 				return;
@@ -203,7 +202,8 @@
 				if (c1rect.x + c1rect.width >= rect.x + rect.width) {  // end of phase 0
 					deflater.deflate(c1,Deflater.FULL_FLUSH);
 					flushRectangle(c1rect);
-					c1.position((c1.position()+16)); // make next header space
+					c1.position(c1.position()+16); // header space
+					prevC1Offset = c1.position();
 					c1rect = new FramebufferUpdateRectangle(rect.x,c1rect.y+tileH,0,0);
 					width = 0;
 				}
@@ -222,12 +222,6 @@
 			}
 		}
 
-		public void moveNext() {
-			// previous rectangle is finished, make next header space and copy already compressed part
-			c1.limit(c1.limit()+16);
-			System.arraycopy(c1.array(),prevC1LineOffset,16,prevC1LineOffset+16,c1.position()-prevC1LineOffset);
-		}
-
 		private void flushDeflator() {
 			c1.limit(c1.limit() + MARGIN);
 			deflater.deflate(c1, Deflater.FULL_FLUSH);
@@ -256,7 +250,6 @@
 			c1.putInt(prevC1Offset - 8, EncodingType.ZRLEE.getId());
 			c1.putInt(prevC1Offset  - 4, c1.position() - prevC1Offset ); // data length
 			c1.putShort(2, (short) (c1.getShort(2) + 1));    // increment rectangle count
-			prevC1Offset = c1.position();
 		}
 
 		private void flushMuticast(TreeRFBProto rfb, byte[] bytes) {

--- a/src/main/java/com/glavsoft/rfb/protocol/ReceiverTask.java	Thu Feb 13 13:43:34 2020 +0900
+++ b/src/main/java/com/glavsoft/rfb/protocol/ReceiverTask.java	Thu Feb 13 21:52:36 2020 +0900
@@ -386,8 +386,10 @@
             int numberOfRectangeles = in.readInt16();
             if (true) {
                 in.mark(c1.limit() - 4);
-                while(numberOfRectangeles-- > 0 ) {
+                int n = numberOfRectangeles;
+                while(n-- > 0 ) {
                     rect.fill(in);
+                    System.out.println("check rect " + rect);
                     if (rect.getEncodingType() == EncodingType.ZRLEE) {
                         int length = rect.width * rect.height * renderer.getBytesPerPixel();
                         int zippedLength = (int) in.readUInt32();
@@ -400,7 +402,6 @@
             }
             while (numberOfRectangeles-- > 0) {
                 rect.fill(in);
-                System.out.println("check rect " + rect);
                 if (rect.getEncodingType() == EncodingType.ZRLEE) {
                     Decoder decoder = new ZRLEDecoder();
                     decoder.decode(in,new NullRenderer(context.getPixelFormat().bitsPerPixel/8, context.getFbWidth(), context.getFbHeight(), context.getPixelFormat()),rect);
@@ -415,7 +416,7 @@
         int span = flushEnd - flushOffset;
         if (buf.remaining() == span) {
 
-        }else {
+        } else {
             System.out.println("Bytes is not equal length "+buf.remaining()+" - "+span + " = " + (buf.remaining() - span));
         }
         dump("in  ",bytes,flushOffset,8); dump("... ",bytes,flushEnd-8,8);